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goole@goolevalve.com
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Wenzhou City,Zhejiang Province,P.R.China
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Yongjia Goole Valve Co., Ltd.Free·1YRS
Pneumatic Double-Seated Control Valve (GAZJHN)
NegotiableUpdate on November 30
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Overview
Pneumatic Double-Seated Control Valve (GAZJHN)
Product Details
Basic Info
Model NO.GAZJHNUsageFlow ControlApplicationPetroleum, Chemical, Metallurgy, etc.Applicable Temperature Range-20 Deg C ~ 200deg C, or -40 Deg C ~ 450 Deg CSizeDn25-Dn300PressurePn1.6-Pn10.0MPa or Class 150lb - Class 600lbTrademarkGoole or OEMTransport PackagePlywood CaseSpecificationISO 9001OriginWenzhou, Zhejiang, ChinaHS Code8481804090Power: Pneumatic Material: Wcb, Ss304, Ss316, Ss316L, Ss304L Category: Control Valve Actuator: Pneunamic Connecting Type: Flange Medium: Gas, Liquid, Steam, etc.
GAZJHN Pneumatic diaphragm double-seated control 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.
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.
Kv,Movement&Allowable Differential Pressure.
| DN(mm) | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | ||||
| Size of seat(mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | ||
| Flow coefficient Kv | 4 | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 160 | 250 | 400 | 630 | ||
| Movement(mm) | 16 | 25 | 40 | 60 | ||||||||||
| Allowable differential pressure(Mpa) | 5.8 | 4.9 | 3.8 | 2.9 | 4.0 | 3.3 | 2.6 | 3.6 | 3.0 | 2.3 | ||||
| Note:It refers to the differential pressure when the valves in open position. | ||||||||||||||
Pneumatic Double Seated Control Valve Dimension.
| DN | Actuator | H | øA | H1 | L | |||
| Normal TEMP | Heat Radiator Type. | PN1.6 | PN4.0 | PN6.4 | ||||
| 25 | ZHA22 | 498 | 648 | 285 | 117 | 185 | 190 | 205 |
| 32 | ZHA22 | 501 | 651 | 285 | 120 | 200 | 210 | 220 |
| 40 | ZHA22 | 522 | 691 | 285 | 139 | 220 | 230 | 240 |
| 50 | ZHA22 | 530 | 699 | 285 | 144 | 250 | 255 | 265 |
| 65 | ZHA34 | 645 | 815 | 363 | 188 | 275 | 285 | 295 |
| 80 | ZHA34 | 661 | 835 | 363 | 208 | 305 | 310 | 325 |
| 100 | ZHA34 | 687 | 887 | 363 | 220 | 350 | 355 | 370 |
| 125 | ZHA34 | 1234 | 1444 | 363 | 270 | 410 | 425 | 440 |
| 150 | ZHA45 | 1242 | 1492 | 470 | 280 | 450 | 460 | 475 |
| 200 | ZHA45 | 1394 | 1654 | 470 | 320 | 550 | 560 | 570 |
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