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Rosemount™ R305 Integral Manifold
The Rosemount R305 Integral Manifold assembles directly to the patented Rosemount Coplanar™ transmitter, eliminating the need for a flange.
The Pressure-Lock™ Valve, exclusively featured on the Rosemount R305 and R306 manifolds, offers simplified operation, enhanced reliability and increased operator safety. This lightweight premium manifold is available in 2-, 3- and 5-valve configurations which allows for instrument isolation and controlled venting to ensure measurement integrity.

Simplify Instrument Manifold Operation with Rosemount Enhanced Manifolds

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Rosemount™ R305 Integral Manifold


Max. Operating Pressure
6250 psi (431 bar)
Max. Operating Temperature
750°F (399°C)
Manifold Material
316 SST/316L SST
Packing Material
PTFE, Graphite-based
Process Connection
1/2" -14 NPT female
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


  • Exclusive Pressure-Lock™ Valve technology with two-piece stem design offers enhanced reliability, increased operator safety and simplified operation
  • Designed for direct assembly to Rosemount Coplanar transmitter interface, eliminating the need for a flange while also reducing overall system weight
  • 50% fewer potential leak points than conventional transmitter to flange to manifold interface
  • Available in 2-, 3- and 5-valve configurations for MultiVariable, absolute, gage and differential pressure transmitters
  • Large internal process bore to resist plugging
  • Female NPT process connections
  • Provides a leak-checked and pressure tested single point solution when factory assembled to Rosemount pressure transmitters