Affiliate classification:

High-pressure Differential Valve

Summary information:

DOCN high pressure differential control valves are specially suitable for control valves under extreme conditions such as high temperature and high pressure differential.

Product description

Technical Data

Body type

DC1844 ball   valve

DC1854 ball   valve

Body size

DN20 – DN4003/4″- 16″

DN20 – DN4003/4″- 16″

Nominal pressure

PN16 – PN420ANSI class 150   - 2500

PN16 – PN420ANSI class 150   - 2500

Fluid   temperature

-196 - 620



Body materials

20/15CrMo/12Cr1MoV   A105A182   F11/F22/F91/F92/F304/F316

Trim materials

GB1220 20Cr13/S30408/S31608/17-4PHA182 F6NMA479 XM-19Inconel 718

Adjustable   ratio

50:1 – 20:1

Flow   characteristics

linear EQ%

Metal seat

GB4213    ANSI class

soft seat

Bubble-tight GB4213     ANSI

Depressurization   level

UP to level 40


Electric  actuator

Pneumatic  diaphragm actuator

Pneumatic cylinder actuator

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