3
Rosemount Manifolds
August 2016
EmersonProcess.com/Rosemount
Valve configuration
Block-and-bleed
The block-and-bleed configuration is available on the Rosemount
306 Manifold for use with in-line gage and absolute pressure
transmitters. A single isolate valve provides instrument isolation
and a bleed screw provides drain/vent capabilities.
Rosemount 306 Manifold
Two-valve
The 2-valve configuration is available on Rosemount 305, 306, and
304 Manifolds for use with absolute and gage pressure
transmitters. An isolate valve provides instrument isolation and a
drain/vent valve allows venting, draining, or calibration.
Rosemount 305 and 306 Manifolds
Rosemount 304 Manifold
Three-valve
The 3-valve configuration is available on Rosemount 305 and 304
Manifolds for use with differential pressure and multi-variable
transmitters. Two isolate valves provide instrument isolation, and
one equalize valve is positioned between the high and low process
connections.
Rosemount 305 Manifold
Rosemount 304 (Traditional) Manifold
Rosemount 304 (Wafer) Manifold
Note
Vent ports receive plastic caps to protect threaded
connections unless otherwise noted.
Note
Plugged connections receive
1
/
4
-in. NPT plugs unless
otherwise noted.
Isolate
Transmitter
Bleed screw
Process
Transmitter
Vent
Isolate
Process
Transmitter
Isolate
Process
Vent
(plugged)
Transmitter
Drain/vent
Isolate
Drain/vent
Isolate
Equalize
Process
Transmitter
(plugged)
Equalize
Isolate
Process
Isolate
(plugged)
Transmitter
Equalize
Process
Isolate
Isolate
