June 2016
14
Quick Start Guide
Figure 12. Valve Identification for 5-Valve and 3-Valve Manifolds
Table 4. Description of Impulse Valves and Components
5-valve manifold
3-valve manifold
Name
Description
Purpose
Components
1
Transmitter
Reads Differential Pressure
2
Manifold
Isolates and equalizes transmitter
Manifold and impulse valves
PH
Primary sensor
(1)
1. High pressure
High and low side pressure process connections.
PL
Primary sensor
(2)
2. Low pressure
DVH
Drain/vent valve
(1)
Drains (for gas service) or vents (for liquid or steam service) the DP
transmitter chambers
DVL
Drain/vent valve
(2)
MH
Manifold
(1)
Isolates high side or low side pressure from the process
ML
Manifold
(2)
MEH
Manifold equalizer
(1)
Allows high and low pressure side access to the vent valve, or for
isolating the process fluid
MEL
Manifold equalizer
(2)
ME
Manifold equalizer
Allows high and low side pressure to equalize
MV
Manifold vent valve
Vents process fluid
To PH
To PL
MV
ML
MEL
DVL
MH
MEH
DVH
2
1
To PL
ME
To PH
MH
DVH
ML
DVL
2
1
00825-0400-4809 Rev FB.fm Page 14 Thursday, June 16, 2016 1:16 PM