Products > Control valve > Pneumatic sleeve regulating valve

Pneumatic sleeve regulating valve

Model: ZJHM
Nominal diameter: DN20 ~ 200mm
Nominal pressure: PN16 ~ 100MPa
Temperature: -196 ~ + 560 ℃
Main material: WCB, LCB, WC9
Drive: aerodynamic
Design criteria: GB / T17213
Flange Standard: GB / T9113, JB / T79, HG20594 and other standard
Inspection standards: GB / T4213
Connection: flange (FF RF RTJ), welding (SW BW), the screw (for a "less)
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First, an overview of pneumatic sleeve regulating valve

Pneumatic   sleeve control valve is a pressure balance type control valve, the use   of sleeve-oriented, pressure-balanced double seal surface valve body,   equipped with multi-spring pneumatic actuator. S-stream   flow was linear, the overall work balance, allowing pressure, flow   characteristics of accurate, low noise characteristics. Especially suitable for large flow, large pressure difference before and after the valve, leaks do not engage in the occasion. This   series of products are room temperature type, high temperature type,   low temperature type, regulation cut off, bellows sealed and other   forms. Nominal   product pressure rating PN1.6,4.0, 6.4,10.0; body diameter range   DN20-300, the fluid temperature -196 ~ + 560 ℃ range of a variety of   grades. Leakage levels are Ⅳ, Ⅴ, Ⅵ. Flow characteristics of a straight line, equal percentage characteristics. A variety of different specifications to choose from.

 

Second, pneumatic sleeve valve parts of the main material

Body made of carbon steelBody made of stainless steel
1BodyWCBLCBWC91BodyWCBLCBWC9
2Gasket316+ graphite / PTFE2Gasket316+ graphite / PTFE
3Sleeve3043043043Sleeve304304304
4Spool3043043044Spool304304304
5capWCBLCBWC95capWCBLCBWC9
6Valve stem3043043046Valve stem304304304
7fillerPTFE / flexible graphite7fillerPTFE / flexible graphite
8spring65Mn8spring65Mn
9Nut3043043049Nut304316316L

 

Third, pneumatic sleeve valve main technical parameters

Nominal diameter DN (mm)20253240506580100125150200
Rated flow 
             coefficient KV
straight line6.91117.627.54469110176275440690
Equal percentage6.31016254063100160250400630
Actuator 
             Model
Is the roleZHA-22ZHA-23ZHA-34ZHA-45
reactionZHB-22ZHB-23ZHB-34ZHB-45
Rated stroke L (mm)16254060
Diaphragm effective area Ae (cm2)2804006001000
Nominal pressure PN (MPa)1.6 2.5 4.0 6.4 10.0
Inherent flow characteristicsStraight line percentage
Inherent adjustable R50: 1
Signal range Pr (KPa)20-60, 20-100, 40-200, 60-100, 80-240
Air pressure Ps (MPa)0.14, 0.25, 0.28, 0.40

 

Fourth, pneumatic sleeve valve main performance indicators

Serial numberprojectStandard control valveCooling, low temperature control valve
Without locatorWith locatorWithout locatorWith locator
1Basic error <(%)± 5± 1± 15± 4
2Back to the difference <(%)31103
3Dead zone <(%)30.481
4Always point
               deviation
               <(%)
Open
               air
Start
               point
± 2.5± 1± 6± 2.5
end± 5± 15
Qi offStart
               point
± 5± 15
end± 2.5± 6
5
± 2.5+2.5+6+2.5

 

Fifth, pneumatic sleeve valve size

Nominal diameter (DN)20253240506580100125150200
Structure length 
                 (L)
PN16 / 25184184200222254276298352420451543
PN40184184200222254276317368400473568
PN64,100206210251251286311337394500508610
H1128128152152160205205208273333364
H2298298298298298380380380510510510
H3208208224228228334334342408453482
H4338338402402405627628635698702728
H553586873809098108123140168
H6180180180180180236236236310310310
A282282282282282360360360470470470
C220220220220220270270270320320320
L1289289289289289347347347476476476
Pressure LevelGB: 1.6, 2.5, 4.0, 6.4, 10.0 MPa ANSI: 150, 300, 600 LB JIS: 10, 20, 30, 40K
Execution agencyZHB-22ZHB-23ZHB-34ZHB-45