Active Member
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[China]
Address: A1011, Nan Fang Ji Dian Market , YuHang District, Hangzhou,Zhejiang
Contact name:angela
Zhejiang TongJiang Holdings Company |
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Penumatic Double Seats Control Valve with Multi-Spring Diaphragm Actuator, Class 300
PRODUCT INTRODUCTION
1. Description
The ZJHN pneumatic membrane double seat regulating valve adopts a double guide structure and is equipped with multiple spring recruit agencies. It has the advantages of compact structure, light weight, sensitive action, large valve capacity, accurate flow characteristics, easy disassembly and assembly. It is widely used in precise control of gas, liquid, steam and other media process parameters such as pressure, flow, temperature, liquid level to maintain at a given value. It is especially suitable for occasions with larger pressure difference and larger leakage and is not very clean. This series of products has standard type, bellows seal type, jacket insulation type and so on. The nominal pressure level of products is PN16, 40 and 64, and the caliber of valve body ranges from DN25 to 400. Suitable fluid temperature ranges from -250 to +560 degrees. The standard of leakage is grade III and IV. The flow characteristic is linear or percentage. Various varieties and specifications are available.
2. Specification of Double Seats Control Valve
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.
3. 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. | ||||||||||||||
4. Steam Control Valve Outsize Drawing
| 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 |
If you require other sizes and valve design standards, please send email to angela@tjfmcn.com to get the drawing.
5. Hydraulic Control Valve Packing with Plywood
Please feel free to contact with us at angela@tjfmcn.com or filling up an enquiry form instructed at the bottom.
You will get an effective response within 24 hours from TongJiang Team.
Miss Angela
Mobile: +86 13588429004(Whatsapp)
Skype: angelazhuo1
E-mail: angela@tjfmcn.com
Tel No: +86 571 86991717
Official Website: www.zjtjvalve.com
