Quick Installation Guide
00825-0200-4585, Rev AA
January 2009
Flanged Flo-Tap 585 Annubar
13
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TEP
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An instrument manifold is recommended for all installations. Manifolds allow an operator to
equalize the pressures prior to zeroing and isolates the process fluid from the transmitter.
Figure 11. Valve Identification for 5-valve and 3-Valve Manifolds
Table 3. 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
MH
MV
ML
DVL
DVH
MEL
MEH
2
1
To PH
To PL
MH
ME
ML
DVL
DVH
2
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4585_0200_QIG_AA.fm Page 13 Thursday, January 29, 2009 3:05 PM
