Pneumatic Double Seated Flow Regulating Valve (GAZJHN)

Oct 17, 2017 Leave a message

Basic Info

  • Model NO.: GAZJHN

  • Actuator: Pneunamic

  • Material: Wcb, Ss304, Ss316, Ss316L, Ss304L

  • Usage: Flow Control

  • Applicable Temperature Range: -20 Deg C ~ 200deg C, or -40 Deg C ~ 450 Deg C

  • Pressure: Pn1.6-Pn10.0MPa or Class 150lb - Class 600lb

  • Transport Package: Plywood Case

  • Origin: Wenzhou, Zhejiang, China

  • Category: Control Valve

  • Connecting Type: Flange

  • Medium: Gas, Liquid, Steam, etc.

  • Application: Petroleum, Chemical, Metallurgy, etc.

  • Size: Dn25-Dn300

  • Trademark: Goole or OEM

  • Specification: ISO 9001

  • HS Code: 8481804090

Product Description

GAZJHN Pneumatic diaphragm double-seated flow regulating valve.
The valve has double seats.The fluid outflow through the valve core of the upper and lower sealing surface.The unbalanced pressure is small.It is a balanced structure,which are widely used in petroleum,chemical,pharmaceutical,metallurgical,power plants,such as the industrial sector,to control of gas liquid medium such as steam.


GAZJHN Pneumatic diaphragm double-seated pressure regulating valve Structure
Valve Body.

Structure:flowing through type globe valve with double-seated.
DN:25~300mm.
PN:1.6~10.0Mpa or class 150~class 600.
Connections:flanged type.
Material:WCB,HT200 ZG230-450 ZG1Cr18Ni9Ti.ZG0Cr18Ni12Mo2Ti.
 
Upper Cover.
Normal Temp:-20°C~+200°C.
Heat Radiation Type:-40°C~+450°C.
Gland Connection:bolted type.
Packing:V type PTFE.FLEXIBLE GRAPHITE.S.S BELLOWS.
 
Valve Assembly.
Valve Core:Double guiding&double-seated plug type.
Cv Features:Linear,Equal Percentage or Quick opening.
Material:1Cr18Ni9Ti0Cr18Ni12Mo2Ti.
 

Actuator.
Model:Multi-spring diaphragm type actuator
Material of the diaphragm:NBR with reinforced polyester fabric.
Spring range:0.02~0.1/0.04~0.2Mpa.
Air Supply:0.14/0.16/0.28Mpa.
Air Supply Connector:M10*1.
Working Temp:-30~+70°C.
Valve Acting Type:air to close or air to open.
Accessories:positioner,,hand wheel.
Parameters:(with positioner.)
Leakage:<0.5%×Kv.
Intrinsic Erro:+/-1.5%.
Controlling Range:30:1.

GAZJHN Pneumatic diaphragm double-seated flow regulating valve Specifications
Kv,Movement&Allowable Differential Pressure.

DN(mm)253240506580100125150200
Size of seat(mm)1520253240506580100125150200
Flow coefficient Kv46.31016254063100160250400630
Movement(mm)16254060
Allowable differential pressure(Mpa)5.84.93.82.94.03.32.63.63.02.3
Note:It refers to the differential pressure when the valves in open position.

 
GAZJHN Pneumatic diaphragm double-seated flow regulating valve Dimension.

 

DNActuatorH?AH1L
Normal TEMPHeat Radiator Type.PN1.6PN4.0PN6.4
25ZHA22498648285117185190205
32ZHA22501651285120200210220
40ZHA22522691285139220230240
50ZHA22530699285144250255265
65ZHA34645815363188275285295
80ZHA34661835363208305310325
100ZHA34687887363220350355370
125ZHA3412341444363270410425440
150ZHA4512421492470280450460475
200ZHA4513941654470320550560570