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Rosemount™ 305 Integral Manifold
The Rosemount 305 Integral Manifold attaches directly to the patented Rosemount Coplanar™ transmitter, eliminating the need for a flange.
This lightweight, premier manifold comes in a 2-, 3- and 5-valve configuration and allows instrument isolation, controlled venting and added protection from leaking to ensure measurement integrity. This product can be factory-assembled to a transmitter and leak-tested and can be used with multivariable, static and differential pressure transmitters.
Rosemount™ 305 Integral Manifold


Maximum Operating Temperature
1000°F (538°C)
Manifold Material
316 SST/316L SST, Alloy C-276, Alloy 400
Packing Material
PTFE, graphite-based
Process Connections
1/4“-18 NPT female, 1/2“-14 NPT female, 1/2“-14 female NPT flange adapter, 12 mm ferrule tube flange adapter
Process Connection Orientation
Parallel with transmitter, 90° to transmitter
Cleaning for special services, sour gas (meets NACE MR 0175/ISO 15156, MR0103), see full specs for complete list of certifications
Up to 5-year limited warranty


  • Designed for direct assembly to Rosemount Coplanar transmitter interface, eliminating the need for a flange
  • 50% fewer potential leak points than conventional transmitter to flange to manifold interface
  • Lightweight manifold design can be factory-assembled, leak-tested and calibrated for an easy installation process
  • 2-,3- and 5-valve configuration for multivariable, absolute, gage and differential pressure transmitters
  • 5-valve natural gas configuration available for extra protection from leaking to ensure DP signal integrity