ZJHM Pneumatic Sleeve Control Valve produced and sold by Woci valve group 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.
ZJHM Pneumatic Sleeve Control 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 |
ZJHM Pneumatic Sleeve Control 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 | |||||||||||
ZJHM Pneumatic Sleeve Control 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 | |||
ZJHM Pneumatic Sleeve Control 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 | ||||||||
