Chemical Engineering Self Regulated Valve Single Seat Cage Structure Type - YS
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Chemical Engineering Self Regulated Valve Single Seat Cage Structure Type
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Self-operated pressure single-seat control valve
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ZZY Series of Self-operated Control Valve there is no need for any external power source, only used fluid own energy to adjusted the valve opening automatically, and pressure set value ?can be adjusted freely during on working condition. With advantages of quick-opening flow characteristic, flexible operation, good sealing performance, stable fluid pressure, high regulating precision level and low leakage etc.It is widely used in automatic control of the inlet-valve and outlet-valve pressure reduction, stabilization of the fluids, such as air, liquid and vapor in various industrial equipments, like industries in petroleum, chemical engineering, electric power, metallurgy, food, light textile, machinery manufacturing and residential buildings etc. With the condenser, it can continuous on working under 350℃steam condition.
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Characteristics
1,Without any external driving?energy,?low cost, Suitable for explosive?environment；
2,Simple structure, little maintenance work;
3,The set point?can be adjusted and the?range is wide, convenient for the user to do continuous?adjustment;
4,Body?pressure,?convenient pipe installation
5. Using the pressure?balance?valve?structure, no packing,?frictionless?movable?components,?sensitive control,?high control precision.
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Specifications and technical parameters
1. Main technical parameters of ZZY standard KV﹥7?????????????????????????????????????? ?Table 1
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DN(mm) | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
Rated flow coefficient Kv | 11 | 17 | 29 | 43 | 70 | 110 | 169 | 275 | 440 | 690 | 960 | 1300 |
Rated travel L(mm) | 10 | 14 | 20 | 25 | 40 | 60 |
Actuator type | Diaphragm type(Set pressure≤0.7MPa),Cylinder type(Set pressure＞0.8MPa),Bellows type |
Actuator | Set point KPa | 100 | 200 | 300 | 700 | 1000 | 1500 | 2000 | 3000 | 4000 |
Effective area cm2 | 400 | 280 | 200 | 100 | 71 | 71 | 50 | 33 | 28 |
PN(MPa) | 1.6? 4.0? 6.4? 10.0 |
Inherent flow characteristic? | Quick open |
Action type | Press to close (control outlet), Press to open (control inlet) |
Structure type | Single seat, Cage |
Inherent?adjustable ratio R | 30 |
Reduction ratio | 10:1～1.25:1 |
Medium temperature (℃) | General＜120℃,With?the condenser≤350℃ |
Regulation accuracy (%) | ±10 |
Allowable leakage | Soft sealing | Ⅵ,Zero leakage |
Hard sealing | Ⅳ,Ⅴ |
Flange connection | PN1.6MPa according to HG/T20592-2009 RF,Raised surface PN≥4.0MPa according to HG/T20592-2009 FM,Female surface? |
Pressure regulating range (KPa) | 30～60,50～100,80～200,120～350,250～500,400～800 700～1000,900～1400,1200～1700,1500～2000,1800～2400 2200～2800,2600～3200,3000～3600,3500～4000 |
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2. Main technical parameters of ZZY standard??? KV≤7???????????????? ??????????????????????Table 2
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DN(mm) | 15?? 20?? 25 |
Seat diameter dn(mm) | 4 | 5 | 6 | 7 | 8 | 10 | 12 | 15 | 20 |
Rated flow coefficient Kv | 0.02 | 0.05 | 0.08 | 0.12 | 0.2 | 0.32 | 0.5 | 0.8 | 1.2 | 2.0 | 3.2 | 7 |
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Note:1, Production can be according to customers’ special requirements;
? 2, Flange can be produced according to ANSI,JIS, etc.;??
Zhejiang yongsheng technology co.,ltd.
Address: Lushan Industrial Park,Fuyang,Hangzhou City,Zhejiang Province,China, Hangzhou, Zhejiang, China, 310000
Tel: 86-571-63168258
Zhejiang Yongsheng Instrumentation Co., Ltd has been officially changed to Zhejiang Yongsheng Technology Co., Ltd. since July 1st 2015 . It is a professional corporation specializing in developing and manufacturing instruments of industrial control valves. Our company is a state approved A Class manufacturer of pressure pipe components; National Support for High-tech Enterprise; State Torch Program Units; and is superior supplier of Sinopec, CNPC, CNOOC and other important national oil and chemical enterprise.
Our company is located in Lushan Hi-tech Park - in the southern part of Hangzhou where with honor of Natural Heaven. The company is covered with more than 30,000 square meter area; we have two factories: one with an annual output of 5000 tons of resin sand cast and another produces 20,000 sets of valves. We have more than 300 senior and middle-class technicians. Our company has many patent products including: new type of intelligent control valve, three eccentric butterfly valve, 鈥淰鈥?ball valve, pneumatic Y鈥搕rap valve and pipe regulating device etc. We have fully realized a stream line from valve body casting, machining, testing, and packing for self regulating valve series, linear-motion regulating valve series, rotary-motion regulating valve series, intelligent control valve series, and we have turned into one of the most advanced control valve R&D, and manufacturing base in China.
