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Pneumatic Film Three-way Confluence and Shunt-off Regulating Valve

1气动薄膜三通调节阀1.jpg
  • 1气动薄膜三通调节阀1.jpg
Pneumatic thin-walled window-shaped spool guide is used in the three-way flow and shunt control valv…

Description:

A, use:
ZJHQ, ZJHX seriesPneumatic diaphragm three confluence, shunt valveThe cylinder shaped valve type thin window guide, the guide bushing is different from the plunger shaped spool.Equipped with multi spring actuator, has the advantages of simple structure, light weight, small volume, convenient disassembly and assembly etc..Widely used in the precise control of the gas and liquid medium in the process such as pressure, flow, temperature, liquid level is maintained at a given value.Suitable for a fluid through a three-way valve into the road or the outflow of both fluid through a three-way valve into the fluid situation.
This series of products are three confluence and three shunt two.Nominal pressure PN16, 40, 64; nominal diameter range of DN25 ~ 300.Application of fluid temperature from -60 DEG to +450 DEG C.Leakage standard IV.Flow characteristics are linear, parabolic two.
Two,Pneumatic diaphragm three confluence, shunt valveStructural characteristics:
The valve body, valve cover: HT200, ZG230, ZG1Cr18Ni9Ti - 450
Valve, valve seat: 1Cr18Ni9Ti
Corrugated diaphragm: rubber reinforced polyester fabric
Filling material: Teflon, flexible graphite
Spring: 60Si2Mn
Cover: A3
The stem and push rod: 2Cr13, 1Cr18Ni9Ti
Lining: 2Cr13
Gasket: asbestos rubber sheet, asbestos gasket, 1Cr18Ni9Ti
Three,Pneumatic three-way mixing, shunt valveTechnical parameters:

The nominal diameter of DN (mm)Twenty-fiveThirty-twoFortyFiftySixty-fiveEightyOne hundredOne hundred and twenty-fiveOne hundred and fiftyTwo hundredTwo hundred and fiftyThree hundred
Rated flow coefficient KvConfluenceEight point fiveThirteenTwenty-oneThirty-fourFifty-threeEighty-fiveOne hundred and thirty-fiveTwo hundred and tenThree hundred and fortyFive hundred and thirty-fiveEight hundredOne thousand two hundred and eighty
shunt




Eighty-fiveOne hundred and thirty-fiveTwo hundred and tenThree hundred and fortyFive hundred and thirty-fiveEight hundredOne thousand two hundred and eighty
Rated stroke L (mm)SixteenTwenty-fiveFortySixtyOne hundred
The effective area of diaphragm Ae (cm2)Two hundred and eightyFour hundredSix hundredOne thousandOne thousand and six hundred
Nominal pressure PN (MPa)1.6, 4.0, 6.4
Inherent flow characteristicsStraight line, parabola
The inherent adjustable ratio R30:1
The working temperature of T (c)Common type: cast iron -20 ~ 200, -40 ~ 250, cast steel, cast stainless steel -60 ~ 250
Heat type: cast steel -40 ~ 450, -60 ~ 450 cast stainless steel
Two medium temperature difference t (c)Cast iron, cast steel and cast stainless steel is less than or equal to 150 is less than or equal to 200
The signal range of Pr (kPa)From 20 to 100
The air pressure Ps (MPa)From 0.14 to 0.4
Allowable leakage l/h10-4 * valve rated capacity
Allowable differential pressure P (MPa)Zero point eight sixZero point seven fiveZero point four eightZero point three oneZero point two sevenZero point one eightZero point one oneZero point one twoZero point zero nineZero Point Zero FiveZero point zero fourZero point zero two

Design selection and ordering matters:
1, product type and name;
2, the nominal diameter of DNmm;
3, the nominal pressure;
4, flow characteristics;
5, the body material and trim materials;
6, medium type and temperature range;
7, valve and pressure (pressure difference);
8, seal form;
9, accessories.


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