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ZJHQ pneumatic film three-way control valve


ZJHQ pneumatic film three-way control valve
Stable quality: implement quality monitoring throughout the process, meticulous and comprehensive detection!

Reasonable price: efficient internal cost control, reducing expenses and benefiting customers!

Fast delivery: advanced production lines, sufficient stocking, shortening the delivery time!
Sales: 021-31007323
Fax: 021-333321522
Technology: 021-31007323

product manual Pledge Order process

 

  Product name : 薄膜 三通 调节阀 Pneumatic film three-way control valve Product model : ZJHQ
   Driving method : pneumatic Connection form : Flange
   Structure form : Tee    Sealing material : Rubber asbestos sheet, 1Cr18Ni9Ti, asbestos wound gasket
   Pressure range : 1.6 ~ 6.4MPa    Nominal diameter : -DN3 00 DN25 -DN3 00
   Common materials : Carbon steel, stainless steel    Technical consultation : 021-31007323

是国内著名〖 ZJHQ气动薄膜三通调节阀 〗制造商,也是国内大型【 调节 阀门 】生产商之一,公司自成立以来始终围绕客户的需求并持续创新,为广大的代理商和企业客户提供〖ZJHQ气动薄膜三通调节阀 〗解决方案,质量可靠,价格实惠,故畅销全国各地,欢迎新老客户来电,来函,我们将为您提供最优质的服务。 Hushan Valve Manufacturing (Shanghai) Co., Ltd. is a well-known domestic manufacturer of [ ZJHQ Pneumatic Membrane Three-Way Control Valve ] and one of the large domestic [ regulator valve ] manufacturers. Since its establishment, the company has always focused on customer needs and continued innovation. The majority of agents and corporate customers provide the "ZJHQ Pneumatic Membrane Three-way Control Valve" solution, which is reliable in quality and affordable, and therefore sells well all over the country. Welcome new and old customers to call us and email us.

I. Overview of ZJHQ pneumatic film three-way control valve

      系列产品有三通合流及三通分流两种。 ZJHQ series of pneumatic membrane three-way control valve has two types of three-way confluence and three-way divergence. The nominal pressures are PN16, 40, and 64; the nominal diameter ranges from DN25 to 300. The applicable fluid temperature is from -60 ℃ to + 450 ℃. The leakage standard is Class IV. There are two kinds of flow characteristics: straight line and parabola.


Second, the use of ZJHQ pneumatic film three-way control valve

ZJHQ, ZJHX type pneumatic thin film three-way merging and diverting control valve is guided by a cylindrical thin-walled window spool, which is different from the bushing guide of a plunger spool. Equipped with multi-spring actuator, it has the advantages of simple structure, light weight, small size, convenient disassembly and assembly. Widely used in processes that accurately control gas, liquid and other media, such as pressure, flow, temperature, and liquid level to maintain a given value. 适合于把一种流体通过三通阀分成二路流出或理把两种流体经三通阀合并成一种流体的场合。 Pneumatic membrane straight-through two-seat regulating valve is suitable for the occasion where a fluid is divided into two flows through a three-way valve or two fluids are combined into a fluid through the three-way valve.


Structural features of ZJHQ pneumatic film three-way control valve

Valve body and valve cover: HT200, ZG230-450, ZG1Cr18Ni9Ti
Valve core and valve seat: 1Cr18Ni9Ti
Corrugated diaphragm: Nitrile rubber reinforced polyester fabric
Filler: PTFE, flexible graphite
Spring: 60Si2Mn
Membrane cover: A3
Stem and push rod: 2Cr13, 1Cr18Ni9Ti
Bushing: 2Cr13
Gasket: Rubber asbestos sheet, 1Cr18Ni9Ti, asbestos spiral wound gasket


Technical parameters of ZJHQ pneumatic film three-way control valve

Nominal diameter DN (mm)

25

32

40

50

65

80

100

125

150

200

250

300

Rated flow coefficient Kv

confluence

8.5

13

twenty one

34

53

85

135

210

340

535

800

1280

Shunt

 

 

 

 

 

85

135

210

340

535

800

1280

Rated stroke L (mm)

16

25

40

60

100

Membrane effective area Ae (cm2)

280

400

600

1000

1600

Nominal pressure PN (MPa)

1.6, 4.0, 6.4

Inherent flow characteristics

Straight, parabola

Inherent adjustable ratio R

30: 1

Working temperature t (℃)

Ordinary type: cast iron -20 ~ 200, cast steel -40 ~ 250, cast stainless steel -60 ~ 250
Heat dissipation type: cast steel -40 ~ 450, cast stainless steel -60 ~ 450

Temperature difference between two media t (℃)

Cast iron ≤150, cast steel and cast stainless steel ≤200

Signal range Pr (kpa)

20 ~ 100

Air source pressure Ps (MPa)

0.14 ~ 0.4

Allowable leakage l / h

-4 阀额定容量 10 -4 rated valve capacity

Allowable pressure difference △ P (MPa)

0.86

0.75

0.48

0.31

0.27

0.18

0.11

0.12

0.09

0.05

0.04

0.02


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