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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)

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 steel Body made of stainless steel
1 Body WCB LCB WC9 1 Body WCB LCB WC9
2 Gasket 316+ graphite / PTFE 2 Gasket 316+ graphite / PTFE
3 Sleeve 304 304 304 3 Sleeve 304 304 304
4 Spool 304 304 304 4 Spool 304 304 304
5 cap WCB LCB WC9 5 cap WCB LCB WC9
6 Valve stem 304 304 304 6 Valve stem 304 304 304
7 filler PTFE / flexible graphite 7 filler PTFE / flexible graphite
8 spring 65Mn 8 spring 65Mn
9 Nut 304 304 304 9 Nut 304 316 316L

 

Third, pneumatic sleeve valve main technical parameters

Nominal diameter DN (mm) 20 25 32 40 50 65 80 100 125 150 200
Rated flow 
             coefficient KV
straight line 6.9 11 17.6 27.5 44 69 110 176 275 440 690
Equal percentage 6.3 10 16 25 40 63 100 160 250 400 630
Actuator 
             Model
Is the role ZHA-22 ZHA-23 ZHA-34 ZHA-45
reaction ZHB-22 ZHB-23 ZHB-34 ZHB-45
Rated stroke L (mm) 16 25 40 60
Diaphragm effective area Ae (cm2) 280 400 600 1000
Nominal pressure PN (MPa) 1.6 2.5 4.0 6.4 10.0
Inherent flow characteristics Straight line percentage
Inherent adjustable R 50: 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 number project Standard control valve Cooling, low temperature control valve
Without locator With locator Without locator With locator
1 Basic error <(%) ± 5 ± 1 ± 15 ± 4
2 Back to the difference <(%) 3 1 10 3
3 Dead zone <(%) 3 0.4 8 1
4 Always point
               deviation
               <(%)
Open
               air
Start
               point
± 2.5 ± 1 ± 6 ± 2.5
end ± 5 ± 15
Qi off Start
               point
± 5 ± 15
end ± 2.5 ± 6
5 ± 2.5 +2.5 +6 +2.5

 

Fifth, pneumatic sleeve valve size

Nominal diameter (DN) 20 25 32 40 50 65 80 100 125 150 200
Structure length 
                 (L)
PN16 / 25 184 184 200 222 254 276 298 352 420 451 543
PN40 184 184 200 222 254 276 317 368 400 473 568
PN64,100 206 210 251 251 286 311 337 394 500 508 610
H1 128 128 152 152 160 205 205 208 273 333 364
H2 298 298 298 298 298 380 380 380 510 510 510
H3 208 208 224 228 228 334 334 342 408 453 482
H4 338 338 402 402 405 627 628 635 698 702 728
H5 53 58 68 73 80 90 98 108 123 140 168
H6 180 180 180 180 180 236 236 236 310 310 310
A 282 282 282 282 282 360 360 360 470 470 470
C 220 220 220 220 220 270 270 270 320 320 320
L1 289 289 289 289 289 347 347 347 476 476 476
Pressure Level GB: 1.6, 2.5, 4.0, 6.4, 10.0 MPa ANSI: 150, 300, 600 LB JIS: 10, 20, 30, 40K
Execution agency ZHB-22 ZHB-23 ZHB-34 ZHB-45
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0086 021-69755272
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