Isolation Valves

Control Associates is your single source for Isolation Valve solutions in the metropolitan New York City, northern New Jersey and Connecticut region. We offer all types of valves including gate, globe, check, floating ball, trunnion ball, butterfly, lined, and triple offset designs to satisfy a broad range of applications from general purpose to severe service.

We are the local factory authorized representative and stocking distributor for Emerson's complete portfolio of trusted market leading Isolation Valve brands including Keystone, Vanessa, Yarway, Yarway Hancock, KTM, Neotecha, Virgo, Fisher™, FCT, Fasani, Clarkson, and Sempell.

At Control Associates we understand you are constantly faced with the need to safely and effectually control and isolate many different types of processes. That is why Emerson valves are designed and tested to provide the performance necessary to keep your processes reliably and safely operating at maximum efficiency.

Control Associates also represents complementary Isolation Valve brands like Cameron, Habonim and Powell for select industries and applications.

Triple Offset Valves

Emerson's Vanessa triple offset valve was the first of its kind to provide bidirectional zero leakage performance, creating a new industry category using a technology not previously available with other quarter turn valves. There are now over 300,000 Vanessa valves operating around the world.

Series 30,000 (Basic Configuration)
With a robust integral-to-body valve seat and optimized seating angles, this valve is capable of handling isolation and process control through multiple functionalities. Stellite® grade 21 seat overlays provide excellent durability. Resilient metal seal ring ensures perfect seating force distribution around precision-machined seat circumference. Easily replaceable multi-layered duplex and graphite seal rings. Flange spot facing ensures bolting nut and washer planarity, increasing joint reliability and safety.

Series 30,000 (Cryogenic Configuration)
A virtually maintenance-free valve with tightness, operability and torque demand unaffected by cryogenic conditions and severe temperature fluctuations. Non-rubbing 90-degree rotation and metal-to-metal torque seating provide bi-directional zero leakage tightness to ISO 5208, EN 12266-1 and API 598. Forged one-piece Nitronic® 50 metal seal ring ensures high corrosion resistance and keeps important mechanical features at low temperatures. Stellite® grade 21 overlay seats are maintenance-free. Robust and fire-resistant all-metal construction.
Virgo Triple Offset Valve
The design of the Virgo TOV provides a non-rubbing, open/close operation. Unlike conventional butterfly and gate valves, whose seats are chafed with every stroke, the Virgo TOV uses a triple offset design to prevent seat wear. This means superior performance, lower maintenance, and a longer life for your valves. The versatility of the design allows for use in large variety of applications and within a broad range of operating temperatures.

Butterfly Valves - High Performance

Series 36/37 High Performance Butterfly Valves
The Keystone K-LOK unique shaft packing is composed of 3 rings of braided PTFE rope between one PTFE V-ring at the top and bottom. The packing operates on an interference fit with the body sealing in pressure and vacuum. Unique packing design allows for use in pressure as well as vacuum without modification or special assembly. Integrally cast disc position stop perfectly locates the disc in seat, achieving maximum seat and seal life. Integrally cast mounting pad provides direct mounting of actuators eliminating the need for costly brackets and couplings.

End Connections: Lugged, Wafer, Double Flanged

Applications: Dirty Service, Desalination, Cruise Ship, Cooling Water , Compressors , Chillers , Blowers, Biofuels, Balance of Plant, Steam Utility Distribution


A11 High Performance Butterfly Valve
The Fisher A11 valve is a reliable, high performance butterfly valve for both throttling and on/off applications. Available in either a wafer or single-flange design, it maintains tight shutoff, and can be specified for a wide range of pressure and temperature conditions, including cryogenic.

A31A Cryogenic High Performance Butterfly Valve
The Fisher A31A cryogenic high performance butterfly valve is designed for extreme temperature, cryogenic services and features a valve body extension which positions the packing system and the actuator away from the extreme temperatures. The valve also features a metal NOVEX seal providing tight shutoff, low operating torques, and the rugged durability needed for cryogenic service.

Butterfly Valves - Lined

Model NeoSeal Lined Butterfly Valves
A PTFE lined solution according ISO 5752/5 short (EN 558-1/T5) with various corrosion resistant disc materials. The pressure to keep the two sealing surfaces of the stem seal together is provided by an upper and lower set of Belleville springs resulting in a superior stem seal, which is TA-Luft / VDI 2440 approved. The elastomer back-up pads behind the liner ensure a tight fit around the disc, for a bubble tight shut-off. The liner and disc are the only two valve parts in contact with the medium. Vacuum tests with helium with pressures less than 20 Pa absolute (0.2 mbarA). Optional TFM lining available for extremely demanding applications.

Butterfly Valves - Resilent Seated

Series 221/222 Butterfly Valves
An economical bonded resilient seated butterfly valve for bi-directional and end-of-line service. Bubble tight shut-off at full rated pressure in both directions. The Keystone F222 lugged version is suitable for bi-directional end-of-line service at full pressure rating. Top and bottom bearings absorbs side thrust loads. A molded-in O-ring in the seat for flange sealing eliminates the need for flange gaskets. Body locating holes for easy installation and centering between flanges. Extended neck allows adequate clearance for flange and insulation.

Applications: Pumps, Plant Air, Facilities & Process Utilities, Facilities, Evaporators & Dryers , Dust Collector Systems, Dryers, Cooling Water , Air Circulation, Balance of Plant, Blowers, Compressors , Chillers

Figure 990/920 Butterfly Valves
A split body thin disc valve for high flow and modulating service. The seat is field replaceable and fully isolates the body and shaft from the flow. Primary shaft sealing exceeds the pressure rating of the valve and prevents leakage through shaft area to atmosphere. A secondary shaft sealing provides back-up safety. A molded-in O-ring in the seat for flange sealing eliminates the need for gaskets. Shaft seals prevent moisture penetrating into the shaft area. The two piece shaft allows for a thin disc and provides minimal obstruction to flow (up to DN 300/ NPS 12). Rounded polished disc edge gives full concentric sealing, lower torques, longer seat life and drop-tight shut-off. Body locating holes allow ease of installation and centering between the flanges.
Extended body neck allows for pipe insulation.


Series GRW/GRL Butterfly Valves
A heavy duty industrial resilient seated butterfly valve. Wafer and lugged body design. The seat is field replaceable and fully isolates the body and shaft from the flow. Primary shaft sealing exceeds the pressure rating of the valve and prevents leakage through shaft area to atmosphere. A secondary shaft sealing provides back-up safety. A molded-in O-ring in the seat for flange sealing eliminates the need for gaskets. Shaft seals prevent moisture penetrating into the shaft area. The two piece shaft allows for a thin disc and provides minimal obstruction to flow (up to DN 300/ NPS 12). Rounded polished disc edge gives full concentric sealing, lower torques, longer seat life and drop-tight shut-off. Body locating holes allow ease of installation and centering between the flanges. Extended body neck allows for pipe insulation.

Applications: Air Circulation, Balance of Plant, Bulk Storage, Bulk Conversion Other, Compressors , Conveyors, Cooling Water , Cruise Ship, Facilities & Process Utilities, Blowers

Series GRF Butterfly Valves
A heavy duty double flanged concentric design resilient seated butterfly valve. The seat is field replaceable and fully isolates the body and shaft from the flow. Primary shaft sealing exceeds the pressure rating of the valve and prevents leakage through shaft area to atmosphere. A secondary shaft sealing provides back-up safety. A molded-in O-ring in the seat for flange sealing eliminates the need for gaskets. Shaft seals prevent moisture penetrating into the shaft area. Rounded polished disc edge gives full concentric sealing, lower torques, longer seat life and drop-tight shut-off. Extended body neck allows for pipe insulation.

Figure 55 Butterfly Valve
Double flanged valve design for services in the water treatment industry. The centric disc offers bidirectional service and allows with its symmetric shape high Kv (Cv) values. Dry shaft design. The inside body is protected by a bonded rubber liner extending over the flanges. Primary stem sealing by preloaded contact between flatted seat surface and rounded polished disc-hub area exceeds the pressure rating of the valve and prevents leakage through shaft area to atmosphere. A secondary sealing is provided by the interference fit between shaft and shafthole in seat at all positions. Dirt-scraper prevents moisture penetrating into the shaft area. Bubble-tight shut off at full pressure rating. Rounded, polished disc edge provides concentric sealing. Double flanged body design per EN 558 series 13 (short), series 14 (long) on request. Excellent performance in media with sedimentation and contamination.

Figure 56 Resilient Seated Butterfly Valve
For use in power generation plants, municipal water & wastewater treatment, wastewater collection, air circulation and industrial applications. Cast double flanged butterfly valve, which can be drilled acc. various flange standards (JIS, BS, ISO/EN, ASME and AWWA). Dead-end service capability with downstream piping removed. Body and disc protective coatings or rubber linings are available for sea water or corrosive services. The special seat and disc edge contours reduce seating torque, provide better shut-off and longer service life. The seat is adjustable in order to optimize the required shut-off tightness with the accompanying torque, for unidirectional or bidirectional operation. Replaceable seat without special tooling, dismantling or removing the valve from the line. A stainless steel disc edge resists against corrosion and avoids encrust build-up for consistent sealing. Dry shaft design. High strength stub shafts have full 1½ diameter penetration into disc-hubs with close tolerance-fit. Self lubricating sleeve bearings allow valve installation with the shaft horizontal or vertical.

Materials: Super Duplex, Aluminum Bronze, EPDM Rubber, Carbon Steel, Ductile Iron, Duplex, Buna-N, 316 Stainless Steel

Butterfly Valves - Slurry Control

Figure 635 Slurry Control Valves
The Keystone F635 is a light/medium duty slurry control valve with a wafer style body. It has a swing through disc for minimum clearance. The hard wearing materials of construction offer up to 420 Brinell hardness. Standardized mounting and drive adaptor connection enables direct mounting of Keystone actuators and also allows for in-line actuator removal.

Figure 637 Slurry Control Valve
The F637 is a medium duty slurry control valve, short body style with replaceable body sleeve. The valve is bi-directional with a swing through disc for minimum leakage. The hardened tool steel disc end spacers protect the shaft from erosion. Valve is fully repairable with replaceable internals for significantly extended valve life. Standardized mounting and drive adaptor connection enables direct mounting of Keystone actuators and also allows for actuator removal while in-line.

Figure 638 F638 Series E/Series 2 Slurry Valves
The F638 SE/S2 is an extreme heavy duty slurry control valve, with an extended body style and replaceable body sleeve. Valve is fully repairabible with replaceable internals for significantly extended valve life. Extended body provides protection of down stream piping. The Series 2 features tungsten carbide disc end spacers and a swing through disc for minimal leakage at elevated temperatures. Venturi liner improves flow control. Improved mechanical seal prevents the ingress of media to the bearing journals. KTFE stem seals offer ultimate resistance against caustic and acid applications. Standardized mounting and drive adaptor connection enables direct mounting of Keystone actuators and also allows for in-line actuator removal.

Ball Valves - Floating

Series EB7 Unibody Floating Ball Valve
Fire-safe and Anti-Static ASME 150/300 one piece, end entry, flanged ball valve for oil, gas, petrochemical and chemical industries.

Series EF190 & EF190FE Two-piece Full Bore Ball Valves
High performance two-piece ball valve for demanding process and utility applications. FEF 190FE for applications where fugitive emission compliance is mandatory.

Series EB588 & EB598 Ball Valves
3-piece, full bore, floating ball valve, suitable for a wide range of arduous applications where fire-safe design is mandatory.

Series EB538/EB535 & EB548/EB545 Floating Ball Valve
A two piece fire safe and anti-static full bore, screwed/weld end ball valve for the chemical and petroleum industries.

Model OM­2 Split Body
A new generation of ball valves with fugitive emission control and ISO mounting pad.

Model NB/MB Floating Ball Valves
A single KTM 3-way ball valve replaces several 2-way valves, saving valuable space and simplifying piping.

Model Gratite Seat Hi-Temp
Gratiteseat ball valve operates across an impressive range of temperatures, making it ideal for high pressure, anti-corrosion and other key process lines.
SS Series Floating Ball Valve
The Virgo SS Series Floating Ball Valve utilizes a live loaded stem design to ensure additional protection against leakage even at very low pressures. The triple stem seal utilizes a combination of O-rings and packing materials to provide a leak-proof seal and to minimize fugitive emissions. Other features such as double body seals, blowout-proof stem, fire safe design, body cavity pressure relief, and built-in anti-static devices help to maximize the safety of the valve.
Figure 152 Floating Ball Valves
A comprehensive range of ball valves to suit a wide variety of industrial applications. The range includes one, two and three piece ball valve designs with screwed, weld or flanged end connections. 3/4/5-way multi-port designs available. ISO 5211 top mounting plate available, for easy actuation, on selected models. Carbon steel or stainless steel body materials. Reduced and full bore models. Locking device on all models.

Series 180 Floating Ball Valve
R180/R180F Reduced Bore DesignF180/F180F Full Bore Design
  • Industrial Quality Full Port and Standard Port Ball Valves
  • Steam and Thermal Fluid Ball Valves
  • Metal Seated Ball Valves
  • Fire Safe Ball Valves
  • High Purity/ASME BPE-2002 Ball Valves
  • Carbon Steel, 316L Stainless Steel, Hastelloy-C, Alloy-20, Monel, Duplex 2205
  • Flanged, Threaded and Welded End Connections

Ball Valves - Lined

Model SNB/SNC PFA Lined Ball Valves
PFA lined stainless steel ball valve with short face to face and well proven trunnion mounted design for use in pharmaceutical and bio-engineering industries.

Model NTB/NTC PFA Lined Ball Valves
These PFA lined ball valves are used in a wide variety of applications in many industries. PFA lining offers highest corrosion resistance. Bubble tight shut-off: precision machined ball and seats ­guarantees an absolute leak-free valve. Full bore offers high Kv-value equal to the pipe. One-piece ball/stem: no possibility of damaging PFA-lining on ball by the stem, no hysteresis, ideal for flow control applications.

Ball Valves - Severe Service

Z500 Severe Service Ball Valve
The Fisher Z500 severe service ball valve is a simplistic, two-piece floating ball design with an integral metal seat that provides tight shutoff in high temperature, high pressure, and erosive applications. The mate-lapped ball and seat constructions help ensure sealing. The high-velocity oxyfuel coatings (HVOF) provide excellent corrosion resistance and help eliminate the problems associated with severe service conditions.

Ball Valves - Trunnion

Series Powder Discharge System
A solution for powder handling applications, suitable for high speed and high frequency polyethylene (PE)/polypropylene (PP) processing applications. Spring loaded seat maintains close contact with ball assuring tight sealing even at low pressure. This results in stable opening and closing torques at high differential pressures over a wide range of temperatures. Scraper design for metal seat mechanically minimizes residual powder between surfaces of ball and seat to maintain seal ability during operation and to maintain smooth open-close action. Powder proof devices around seat areas. The spring area is shielded from contaminants by means of innovative ring to provide a constant and stable seat loading to ensure smooth operation.

Richards Series Figure R741/R743 Pin Trunnion Valve
KTM Richards firesafe and anti-static ASME150/300 reduced bore, one piece, end entry, pin trunnion ball valve for the chemical and petroleum industries.
NL Series Trunnion Ball Valve
The Virgo NL Series Trunnion Mounted Ball Valve features a robust API 6D design that meets or surpasses the most demanding industry specifications. This valve was designed and tested with a reliability focus to keep our customers’ processes operating. The valve has been agency reviewed and is SIL 3 capable, therefore can be utilized in SIS, HIPPS and other critical applications. The NL Series can be supplied in a variety of body and trim configurations to meet most any process condition.

FT3 Series Forged Trunnion Ball Valve
With features like ASME B16.34 compliant body and bolting, built-in internal stops, and standard LF2 forged body construction the Virgo FT3 Series Trunnion Ball Valve is engineered to provide the high reliability our customers are looking for in a valve. This valve is also features an API 6D compliant design that features double piston effect seats that meets the stringent ANSI/FCI 70.2 Class VI leakage requirements with bi-directional shutoff.

EL Series Top Entry Trunnion Ball Valve
Designed for inline reparability where quick turnaround may be desirable. This valve conforms to API 6D, ASME B16.34, API 598 and API 607 specifications making it an excellent choice for critical service environments. Its single piece body is more resistant to pipeline stresses and performs well in transmissions pipelines, pumping stations, compression units, onshore terminals, off shore platforms and many other demanding applications.
Series TM Trunnion Mounted Split Body Ball Valves
Trunnion mounted split body ball valves, double block and bleed function, for oil and gas applications

Model HPA/HRA/DB Trunnion Mounted Ball Valves
Trunnion mounted split body ball valves, double block and bleed function, for oil and gas standard and severe applications

Cameron T30 Isolation Valves and Accessories

T30 Series
Fully welded ball valve. Its distinctive design gives it increased strength at reduced weight as well as increased resistance to pipeline pressures and stresses. The valve combines the strength of forged components with a lightweight and compact spherical design that also eliminates body flanges, thus reducing overall size and potential leak paths.

Available in ANSI 150 through 2500 and API 2000 through 10,000 standards. Made of forged steel to assure uniform fine grain structure and toughness, they may be specified in sizes from 2 to 56 in [50 to 1,400 mm].

GROVE B4 Side-entry Ball Valves
Manufactured in a wide range of diameters and pressure classes. The valves are specified for transmission pipelines, pumping, compression and reinjection units, offshore platforms, onshore terminals, pig traps, measuring stations, and surge-relief skids. Split-body construction enables the use of forged materials in various grades of carbon steel, stainless steel, and high alloys, thus complying with the most severe service conditions.

Ball Valves - V-Port

Model V­Port Control Ball Valves
A rugged, long-life V-port control ball valve with excellent flow characteristics for various fluids including slurries and fibers. Rotary-valve design provides shearing action between the V-notch ball and the seat, promoting a smooth, non-clogging operation. Straight-through flow design provides high capacity for fluids. Choice of full and reduced port, providing the right flow capacity for every application at low cost.

Gate Valves - Parallel Slide

Style A High Pressure Gate Valve
A series of robust gate valves specifically designed for applications in the power industry. Stellite® gr. 6 overlay on seat and wedge or disc; Stellite® gr. 21 overlay on backseat. Pressure seal gasket has trapezoidal shape for a low load on bolting, and is supplied in graphite with integral stainless steel anti-extrusion protection.Available in wedge gate and parallel slide configurations.

Applications: Pumps, Valves & Manifolds, HRSG, High Temp, Boilers, Boiler, Biomass Boiler and Power Boiler, Balance of Plant

Through Conduit Gate Valve
Through conduit, slab type bolted bonnet top entry valves are an excellent choice for off-shore and pipeline applications. Designed to meet API 6D specification. Full bore design, suitable for pigging and hot tapping and to minimize turbulence and pressure drop.

Applications: Hydrocrackers, Produced Fluids Management, Refining, Pumps, Valves & Manifolds
Low Pressure Parallel Slide Valve
Positive and reliable isolation, with low operating forces. Reduced actuator size/cost by 30% when compared to wedge gate. Lower pressure drop characteristic than wedge gate valve.

Applications: Boiler, Balance of Plant, Steam turbine, Steam Headers, HRSG, High Temp, Evaporators & Recovery Boiler, Cogeneration, Boilers

Sempell Dewrance High Pressure Parallel Slide Gate Valve
High pressure and temperature parallel slide gate valve. The eyelet follower (conduit) design provides long reliable service life and allows for high seat velocities without detriment to service life. Lower pressure drop characteristic than wedge gate valve. Reduced actuator size/cost by 30% when compared to wedge gate.

Applications: Steam turbine, Steam Headers, Pumps, Valves & Manifolds, High Temp, HRSG, Boiler, Balance of Plant, Boilers, Conventional, Cogeneration

High Pressure Gate Valve
High pressure forged valves provide the ideal solution to harsh service conditions, like elevated temperature and pressures.

Applications: Steam turbine, Steam Headers, HRSG, Pumps, Valves & Manifolds, High Temp, General Service, Balance of Plant

Gate Valves - Wedge

Series 950 Forged Steel Gate Valves
Designed for use in high temperature steam and water, used in a wide variety of general purpose applications including vents, drains and isolation of compressors, condensers, heaters, pumps, etc. Made from one piece, die-forged bodies. Renewable seat rings are made from hardened stainless steel, faced with Stellite. The fully guided wedge is forged, hardened, ground, and lapped to ensure leak free sealing.

Applications: Pumps, Valves & Manifolds, HRSG, Clean Steam, Boilers, Boiler, Biomass Boiler and Power Boiler, Balance of Plant
Style A High Pressure Gate Valve
A series of robust gate valves specifically designed for applications in the power industry. Stellite® gr. 6 overlay on seat and wedge or disc; Stellite® gr. 21 overlay on backseat. Pressure seal gasket has trapezoidal shape for a low load on bolting, and is supplied in graphite with integral stainless steel anti-extrusion protection.Available in wedge gate and parallel slide configurations.

Applications: Pumps, Valves & Manifolds, HRSG, High Temp, Boilers, Boiler, Biomass Boiler and Power Boiler, Balance of Plant

Style B High Pressure Gate Valve
A wide range of gate valves specifically designed for high pressure and high temperature applications. Compact pressure seal gate valves designed according to ASME B16.34 and wall thickness according to API 600.. Stellite® gr. 6 overlay on seat and wedge; Stellite® gr. 21 overlay on backseat. Pressure seal gasket has trapezoidal shape for a low load on bolting, and is supplied in integral metal type. Standard ISO top mounting for easy assembly of any type of actuator or bevel gear.

Applications: High Temp, HRSG, Pumps, Valves & Manifolds, Steam turbine, General Service, Cogeneration, Balance of Plant, Biomass Boiler and Power Boiler

Bolted Bonnet Gate Valves
The bolted bonnet type valves are manufactured to guarantee the highest performance in power applications. Wedge gate valves designed in full compliance with API 600, ASME B16.34 and BS 1414. Yoke sleeve in material suitable to withstand high temperature, wear and corrosion.

Applications: Boilers, Cogeneration, General Service, HRSG, Pumps, Valves & Manifolds, Boiler, Biomass Boiler and Power Boiler, Balance of Plant
High Pressure Gate Valve
High pressure forged valves provide the ideal solution to harsh service conditions, like elevated temperature and pressures. High quality forged materials to guarantee a superior performance and to sensibly decrease operating costs and delivery times. In full compliance with the Health, Safety and Environment requirements to avoid any risk of fugitive emissions. Technologically advanced pressure seal bonnet design is offered as standard to ensure a perfect body-bonnet tightness and to facilitate any maintenance operation. Standard configuration: flexible split wedge. The wedge guide is welding-free as integral to the valve body.

Applications: Steam turbine, Steam Headers, HRSG, Pumps, Valves & Manifolds, High Temp, General Service, Balance of Plant

Globe Valves

Series 4000 Globe Valves
Direct contact and metal-to-metal seating make this Y-pattern globe stop valve ideal for most shut-off applications. All valves feature integral Stellite hardfacing on both body and disc seating surfaces. Disc guides are also Stellite.

Series 5500 Globe Valves
Direct contact, metal-to-metal seating, make the globe valve ideal for most shut-off applications.

Applications: HRSG, High Temp, General Service, Cogeneration, Clean Steam, Boilers, Boiler, Biomass Boiler and Power Boiler, Balance of Plant

Series 5505 Blowdown Globe Valves
Advanced construction features of this high pressure drop angle globe valve provide quality and long service life. Rated to ASME 800 limited class for use in all applications requiring 800 limited class ratings or below.

Applications: Balance of Plant, Biomass Boiler and Power Boiler, Boiler, Boilers, HRSG, General Service

Series 5525/5535 Globe Valves
Combination valve and flow control instrument with special micrometer and pointer to set valve within 1/100 of a handwheel turn.

Applications: HRSG, Boilers, Boiler, Biomass Boiler and Power Boiler

Blow-off Valves
Designed for blow-off service in boiler systems with pressures of 3206 psig. Designed according ASME section 1, ASME B31.1, ASME B16.34. Rugged construction to withstand high pressure and high velocities. Excellent resistance to cleaning acids and wear caused by precipitated solids. No seat, will not score or plug with dirt.

Powell Valves — Since 1846, Powell Valves has been centered around one thing: 100% customer satisfaction. Their mission, coupled with their product line manufactured to the highest quality standards, continues to be what separates Powell from the competition.

As a leading industrial valve manufacturer, Powell offers a wide range of products including: Gate valves, check valves, globe valves, non-return valves, and dual-plate check valves. With the most complete multi-turn product line for a single source manufacturer, Powell valves are produced to the highest quality standards with ultra-modern manufacturing technology and astute materials sourcing.

As a full-service valve company, Powell offers a variety of products as well as modifications and field services. Their modification facility in Manning, South Carolina, is equipped to provide a wide range of custom modifications.

  • Bronze, Cast Iron, and Steel Valves
  • Bolted Bonnet Cast Steel Valves
  • Corrosion Resistant Valves
  • Pressure Seal Cast Steel Valves
  • Bevel Gear Actuators

Globe Valves - T-Pattern

Series 7000 T­Pattern Globe Valves
Direct contact and metal-to-metal seating makes the T-pattern globe stop valve ideal for most shut-off applications. Heavy integral Stellite hardfacing on both body and disc seating surfaces, All valves feature “No bonnet joint” design.

Applications: Biomass Boiler and Power Boiler, Pumps, Valves & Manifolds, HRSG, Boilers, General Service, Balance of Plant, Boiler
Style B High Pressure Globe Valve
A wide range of globe valves specifically designed for high pressure and high temperature applications, where low pressure loss is required. A range of compact pressure seal globe valves designed according to ASME B16.34 with wall thickness according to API 600.

Applications: Steam Headers, Steam turbine, Pumps, Valves & Manifolds, HRSG, High Temp, Cogeneration, Boilers, Balance of Plant, Boiler
Style A High Pressure Globe Valve
A wide range of globe valves specifically designed for high pressure and high temperature applications, where low pressure loss is required.

Applications: Steam turbine, Steam Headers, Pumps, Valves & Manifolds, HRSG, Clean Steam, Biomass Boiler and Power Boiler, Balance of Plant, High Temp

Model VA510 Globe Valve
Designed for highest pressure and temperature applications using high alloy or stainless steels.

Applications: HRSG, High Temp, General Service, Clean Steam, Boilers, Boiler, Biomass Boiler and Power Boiler, Pumps, Valves & Manifolds, Steam turbine, Steam Headers

Globe Valves - Y-Pattern

Welbond High Pressure Globe Valves
In line repairable high pressure globe valve designed to provide maximum service life with minimum maintenance. Stem, disc, and packing can be quickly removed through the yoke, and the seat fully exposed for inline restoration. High dependability - One-piece forged body without pressure welds, seal welds, pressure-containing threads or gaskets, body/bonnet joints, or any of their related problems.

Applications: High Temp, General Service, Cogeneration, Boilers, Boiler, Biomass Boiler and Power Boiler, Balance of Plant, HRSG, Pumps, Valves & Manifolds, Clean Steam, Waste to Energy, Steam turbine
Style B High Pressure Globe Valve
A wide range of globe valves specifically designed for high pressure and high temperature applications, where low pressure loss is required. A range of compact pressure seal globe valves designed according to ASME B16.34 with wall thickness according to API 600. Stellite® gr.6 overlay on seat and disc; Stellite gr.21 overlay on bonnet.

Applications: Steam Headers, Steam turbine, Pumps, Valves & Manifolds, HRSG, High Temp, Cogeneration, Boilers, Balance of Plant, Boiler
Style A High Pressure Globe Valve
A wide range of globe valves specifically designed for high pressure and high temperature applications, where low pressure loss is required.

Applications: Steam turbine, Steam Headers, Pumps, Valves & Manifolds, HRSG, Clean Steam, Biomass Boiler and Power Boiler, Balance of Plant, High Temp

Check Valves - Ball Check, Lined

Model KR and Sightglass Type SG Ball Valve
These PFA lined products offer a reliable solution in hazardous applications. Heavy duty PFA lining. Borosilicate glass for temperatures up to 200°C.
PTFE ball guided with 4 ribs for vertical and horizontal applications. Replaceable soft seats in EPDM, FPM and Perfluor for bubble tightness.

Check Valves - Piston

Style B High Pressure Check Valve
A wide range of check valves specifically designed for high pressure and high temperature applications. Available in swing check, tilting disc and piston check (Y and T pattern design).

Available options: Side mounted counterweight, side mounted hydraulic damper and disc anti-rotation device

Applications: Steam turbine, Pumps, Valves & Manifolds, Steam Headers, Balance of Plant, Boiler, Boilers, Conventional, General Service, High Temp, HRSG, Biomass Boiler and Power Boiler

Check Valves - Swing

Style B High Pressure Check Valve
A wide range of check valves specifically designed for high pressure and high temperature applications. Swing check valves can fit on both horizontal and vertical (up-flow) piping.

Applications: Steam turbine, Pumps, Valves & Manifolds, Steam Headers, Balance of Plant, Boiler, Boilers, Conventional, General Service, High Temp, HRSG, Biomass Boiler and Power Boiler
Figure 87L Swing Check Valves
The Keystone F87L is a resilient seated double flange rubber disc check valve for reliable reverse flow protection in sewage/water applications. Double flanged design. The flap is totally encapsulated in NBR rubber for superior sealing and corrosion resistance. The flap rises above the flow path reducing wear and allows for a flushing action during operation. All iron components are coated in fusion bond epoxy resin. Top entry cover allows for easy access for cleaning and maintenance.

Applications: Water distribution, Wastewater treatment, Wastewater collection, Water Treatment
Model 801 Swing Check Valves
Sempell controlled and uncontrolled non-return or swing check valves prevent unallowable pressure built up in the turbine coming due to back-flowing steam.

Model 801 ASME Swing Check Valves
Sempell controlled and uncontrolled non-return or swing check valves prevent unallowable pressure built up in the turbine coming due to back-flowing steam.

Model 803 ASME Swing Check Valves
Sempell controlled and uncontrolled non-return or swing check valves prevent unallowable pressure built up in the turbine coming due to back-flowing steam.

Model 803 Swing Check Valves
Sempell controlled and uncontrolled non-return or swing check valves prevent unallowable pressure built up in the turbine coming due to back-flowing steam.

High Pressure Check Valve
Pressure seal forged check valves recommended to prevent flow reversal in severe applications. High quality forged materials to guarantee pressure envelope integrity, to conform with ASME and DIN standards.

Applications: Biomass Boiler and Power Boiler, Boiler, Boilers, High Temp, HRSG, Steam Headers, Steam turbine, Waste to Energy

Style A High Pressure Check Valve
A wide range of check valves specifically designed for high pressure and high temperature applications. Available in Swing Check, Tilting disc and Piston Check (Y and T pattern design).

Applications: Boilers, Boiler, Balance of Plant, High Temp, HRSG, Pumps, Valves & Manifolds

Check Valves - Tilting

Style B High Pressure Check Valve
A wide range of check valves specifically designed for high pressure and high temperature applications. Tilting disc check valves are designed to prevent the disc slamming and to ensure, at the same time, a quick closing service.

Applications: Steam turbine, Pumps, Valves & Manifolds, Steam Headers, Balance of Plant, Boiler, Boilers, Conventional, General Service, High Temp, HRSG, Biomass Boiler and Power Boiler
Style A High Pressure Check Valve
A wide range of check valves specifically designed for high pressure and high temperature applications. Tilting disc check valves are designed utilizing triple offset seat geometry to prevent the disc slamming, stable disk operation and to ensure, at the same time, a quick closing service. Available in Swing Check, Tilting disc and Piston Check (Y and T pattern design).

Applications: Boilers, Boiler, Balance of Plant, High Temp, HRSG, Pumps, Valves & Manifolds

Dewrance Model B21/B51 Check Valve
The Sempell Dewrance bled steam check valve has been designed specifically for non-return turbine protection on power generation steam turbines. Excellent reliability, internal counterweight to balance disc under low load conditions. Tilting disc design for quick closing due to lower center of gravity. Lightweight disc with minimum travel, for quick closing in less than 1 second. Optimum performance under all flow conditions.

High Pressure Check Valve
Pressure seal forged check valves recommended to prevent flow reversal in severe applications

Knife Gate Valves

Model KGF/KGF­HP Knife Gate Valve
The Clarkson KGF and KGF-HP slurry knife gate valves provide proven slurry valve technology in higher pressures. 100% isolation bubble-tight shut-off results in absolute zero downstream leakage. Double-seated design provides bi-directional flow and shutoff. Field replaceable elastomer sleeves. Dynamic, self-adjusting secondary seal. No seat cavity where solids can collect and prevent full gate closure.

Model KGD Wafer Style Slurry Valve
The Clarkson KGD wafer style slurry knife gate valve offers the latest in elastomer technology with the Mark III sleeve design. 100% isolation, bubble-tight shut-off results in absolutely zero downstream leakage. Double-seated design provides bi-directional flow and shut-off. Unobstructed flow eliminates turbulence, minimizes pressure drop across valve. No seat cavity where solids can collect and prevent full gate closure. Dynamic self-adjusting secondary seal. No gate or stem packing is required, eliminating packing leakage and maintenance. No metal parts in contact with the flowing slurry.

Model KGA Plus Knife Gate Valve
The new Clarkson KGA+ heavy duty slurry valve builds on the 35 years of in-service experience with the KGA and provides new features including an improved secondary seal and full face flanges. Improved secondary seal is capable of being lubricated without disassembly, simplifying valve maintenance. Can be used in wet or dry services easily dealing with large, heavy particles and tramp material. 100% isolation; bubble tight shut-off results in absolutely zero downstream leakage.

Model KLB Knife Gate Valve
KLB wafer style linear line blind offers value, high performance and safety in a compact package. Linear line blind simplifies a difficult, time-consuming process. No need to spread the pipe to blank the line, actuation can be automated. Visual confirmation of the blank from all sides. Standard with closed position dual-function lock-out assembly. Detachable pin removes potential energy from actuator. Lock-out pin prevents unwanted blind movement. 100% isolation-bubble tight shut-off results in absolutely zero downstream leakage, a true man-safe line blind. Patented, field replaceable elastomer sleeves available in a wide range of elastomers to meet varied applications. No seat cavity where solids can collect and prevent full blank closure.

Model M145 / M202 / M345 / M345­HP Knife Gate Valve
Clarkson L&M valves with the three-piece replaceable polymer liner offer reliability and long life in a wide variety of tough applications. Proven design features a three-piece replaceable polymer liner. Available with ASME Class V shut-off in select applications. Every valve is tested for shut-off in both directions. Can be installed without worry as to direction of flow. 100% full port opening reduces pressure drop allowing greater flow and minimizing wear. T-Lock insert is firmly retained by the body liner, helping ensure maximum performance. Liner provides all-around gate support and helps prevent lateral movement of the gate, giving you longer packing life and a more consistent valve seal. Positive seal packing chamber.

Figure SU10R Polyurethane Knife Gate Valve
The SU10R valve offers bi-directional isolation with a field replaceable snap-in liner that completely protects the wetted area from abrasion and corrosive slurries, increasing reliability and service life. Unique one-piece, precision molded high strength polyurethane liner protects the wetted parts, from corrosion and abrasion. It is field replaceable in all sizes, no need to return to factory for repair.
Figure F17 and F20 Knife Gate Valves
Keystone standard and custom fabricated knife gates available in any weldable alloy and in many configurations. Fabrication provides flexibility of design for today’s process industries.
Valves are designed and built to your exact specifications. Round, square or rectangular ported. Uni-directional or bi-directional.

Material Options: Hastelloy, 304 Stainless Steel, 316 Stainless Steel, Stainless Steel, Super Duplex

Figure PCS17 Perimeter Seal
Bi-directional zero leakage knife gate valve. The new standard for innovation and performance with its drop-in new generation perimeter seat, that ensures zero leakage in either direction. Re-engineered seat geometry and a new precision molding process ensure zero water leakage at low or high pressures. Seat material is available a variety of materials including EPDM, Viton (FKM), Nitrile (NBR). The seat is in-line replaceable. Solid cast, one piece body in 316 stainless steel or WCB cast carbon steel. Four post yoke design makes it easier to make packing adjustments and is more efficient for seat repair/replacement. Also makes actuator retro-fitting quick and easy.

Figure F215 Slide Gate Valve
Ideal valve for dense slurry and solids applications and wet or dry abrasives. Slide through gate design cuts through solids providing consistent operation in the most difficult applications.O-port style gate fully protects the seat face in open position, giving you longer service life. Will close through a static column of material.

Sampling Valves

Neotecha Model Sapro (Aseptic)

Sapro aseptic in-line and tank sampling systems offer sample isolation from the environment and personnel. Aseptic/cleanable design, all wetted parts can be reached with steam, cleaning solvents or inert gas. Ability to totally contain sample, offering ultimate purity of sample in aseptic applications, and offers ultimate safety to personnel in toxic chemical applications. Simple and safe operation due to the use of a spring return manual lever. The lever automatically closes the sampler when it is released. Collects true representative samples every time without process interruption. Spring housing is totally sealed from the media. Valve is self draining (dead spot free). The bottle adaptor is provided with a two step disconnect to allow rinsing, cleaning and sterilizing all internal parts.

Neotecha Model PV Reactor Sampling System

A safe and reliable sampling device to meet the demands of the chemical and pharmaceutical industry. Extracts a representative sample from a reactor under process conditions without stopping the process or opening the reactor. Safe and simple operation. Sample is transferred pressure less. Different sample volumes are available. All wetted parts are PTFE, PFA, perfluor or glass. Direct mounting of all auxiliary valves via integrated mini mounting flange. If pH metering is required the top flange of the PV unit can be equipped with the required connection. Unit can be connected to a continuous re-circulation pump.Unit can be integrated with vacuum, nitrogen and rinsing supply lines. Liquid product can be added to the reactor via the PV unit. Sample media can be returned to the reactor. No contamination of the atmosphere. Displaced air in the bottle is returned into sight glass.

Neotecha Model Sapro In­line Sampling Systems

In-line sampling system for representative sampling without process interruption. •The sampling system ensures a ‘true representative sample’ without process interruption. Designed to be installed directly into a process pipeline. Offered with either a bottle or syringe collection method. This allows for different levels of safety and containment for different applications. The syringe collection method utilizes a Sapro valve with a universal bayonet connection, which allows one syringe to be used at multiple sample points. The operation of the sampling system with bottle adapter is very simple and safe. The spring loaded lever automatically closes the sampler when it is released. The Sapro with bottle adapter comes standard with built-in locking device for safety. PFA lining is available for corrosive services. Easily disassembled for cleaning. Seat change is quick and easy. Spindle seal (including PFA lined) approved in accordance with TA-Luft VDI 2440.

Neotecha Model Sapro Tank Sampling

Tank sampling system for representative sampling without process interruption. The area between the primary and secondary spindle seal can be filled with alcohol to allow monitoring the stem seal and to avoid contamination. The sampling system is offered with either a syringe or bottle collection method. Spring housing is hermetically sealed from the media. Valve is self draining (dead spot free). Bellows sealed spindle seal. The tank sampling is provided with a two step disconnect to ensure that the valve is properly reseated before disconnection. Void between valve and syringe can be rinsed and cleaned. Dry brake connection between Sapro and syringe. The Sapro forms an integrated part with the syringe resulting in a true closed system which allows dangerous, corrosive and toxic liquids or gasses to be taken from a tank without danger to personnel or environment.

Neotecha Model Sapro Sampling Valves

Sapro HT sampling valve for representative sampling without process interruption suitable for high temperature applications up to 350°C (662°F). A bellow sealed primary spindle seal.
Standard provided with leak detection ports.
Available in wafer and flanged body style.
Low cost of ownership due to the ease of assembly and disassembly for cleaning and maintenance. A hard faced knife edge seating surface Stellite-21 to cut through process impurities. Standard bottle adaptor provided with ISO GL 45 thread and G ⅛” vent connection. Customer bottle threads are available on request.



Gate Valves

Powell Valves — Since 1846, Powell Valves has been centered around one thing: 100% customer satisfaction. Their mission, coupled with their product line manufactured to the highest quality standards, continues to be what separates Powell from the competition.

As a leading industrial valve manufacturer, Powell offers a wide range of products including: Gate valves, check valves, globe valves, non-return valves, and dual-plate check valves. With the most complete multi-turn product line for a single source manufacturer, Powell valves are produced to the highest quality standards with ultra-modern manufacturing technology and astute materials sourcing.

As a full-service valve company, Powell offers a variety of products as well as modifications and field services. Their modification facility in Manning, South Carolina, is equipped to provide a wide range of custom modifications.

  • Bronze, Cast Iron, and Steel Valves
  • Bolted Bonnet Cast Steel Valves
  • Corrosion Resistant Valves
  • Pressure Seal Cast Steel Valves
  • Bevel Gear Actuators

Check Valves

Powell Valves — Since 1846, Powell Valves has been centered around one thing: 100% customer satisfaction. Their mission, coupled with their product line manufactured to the highest quality standards, continues to be what separates Powell from the competition.

As a leading industrial valve manufacturer, Powell offers a wide range of products including: Gate valves, check valves, globe valves, non-return valves, and dual-plate check valves. With the most complete multi-turn product line for a single source manufacturer, Powell valves are produced to the highest quality standards with ultra-modern manufacturing technology and astute materials sourcing.

As a full-service valve company, Powell offers a variety of products as well as modifications and field services. Their modification facility in Manning, South Carolina, is equipped to provide a wide range of custom modifications.

  • Bronze, Cast Iron, and Steel Valves
  • Bolted Bonnet Cast Steel Valves
  • Corrosion Resistant Valves
  • Pressure Seal Cast Steel Valves
  • Bevel Gear Actuators

Featured News/Case Studies

Jul 4, 2017
Following Emerson's recent acquisition of the Valves & Controls business unit of Pentair plc, Controls Associates, Emerson's local business partner, has been named the exclusive representative for most of the acquired brands in the NY metropolitan area.
Read More

See All News/Case Studies >>

Upcoming Events/Education

No Events at this time.

The Control Associates Family of Companies

Connect With Us :