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Rosemount™ R306 In-Line Manifold
The Rosemount R306 In-Line Manifold assembles directly to in-line gauge or absolute pressure transmitters.
Exclusively featured on the Rosemount R306 and R305 manifolds, the Pressure-Lock™ Valve offers simplified operation, enhanced reliability and increased operator safety. The R306 manifold is available with a 2-valve configuration for instrument isolation and drain/vent capabilities.

Simplify Instrument Manifold Operation with Rosemount Enhanced Manifolds

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Rosemount™ R306 In-Line Manifold


Max. Operating Pressure
10000 psi (689 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
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
  • Assembles directly to in-line pressure transmitters for simple in-process calibration
  • Two-valve configuration for easy process isolation and draining/venting
  • Large internal process bore to resist plugging
  • Female NPT process connection
  • Provides a leak-checked and pressure tested single point solution when factory assembled to Rosemount pressure transmitters