EKW

Configuration Code:
DPE4ARADF4S
Description:
412 FMA DB PC-D W/O TI

Pneumatic Diaphragm-Balanced Liquid Dump Valves balance upstream vs downstream pressure via communication of the process fluid above and below the balancing diaphragm in order to eliminate imbalance of opening/closing forces due to pressure differential.

Designed for liquid systems, and available in either pressure-opening (normally closed) or pressure-closing (normally open) configurations.

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Product Applications

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Product Charts

1 of 1: Flow Coefficient (Cv) at Stem Travel (% Open)
10%
12
20%
18.9
30%
25.8
40%
32.8
50%
39.9
60%
46.9
70%
53.7
80%
60
90%
65.7
100%
70.1

Tech Specs

Type Value
Connection Size: 4 "
Connection Type: 150 RF
Body Style: Angled Body
Body Material: Cast Ductile
NACE MR0175: Option Available
Trim Size: 3 "
Trim Type: Linear (Nominal)
Leakage Class: Class VI
Process Fluid: Liquid and Gas
Max Working Pressure: 250 psig
Actuator Spring Nominal Pressure: 25 psig
Actuator Crack Open Pressure: 10 psig
Actuator Full Open Pressure: 25 psig
Max Supply Gas Pressure: 45 psig
Fail Position: Open
Operation: Pneumatic
Catalog Page: 04:10.5
Min Cv: 18.9
Max Cv: 70.1
Cf: 0.79