Pneumatic Single Seat control Valve
The Pneumatic Single Seat Valve is actuated by compressed air and is primarily used in industrial automation systems to precisely regulate the flow rate of fluid media. It features a compact design, excellent sealing performance, and is ideal for applications requiring low leakage and compliance with high hygiene standards (e.g., pharmaceuticals, food processing).
Features
- Metal valve plugs are suitable for various operating conditions and meet Class IV leakage standards, while soft-sealed valve plugs meet Class VI leakage standards.
- Bellows-sealed control valves provide a complete seal for the moving valve stem, completely preventing fluid leakage.
- Control valves equipped with insulation jackets are used in applications where fluids tend to crystallize, solidify and cause blockage after cooling.
Basic Parameters
Nominal Diameter (DN):
DN20～DN200
Operating Voltage:
AC220V, AC380V, DC24V
Medium Temperature:
-30℃-350℃
Ambient Temperature:
-30℃～60℃
Nominal Pressure:
1.6～6.4MPa
Control Method:
Switch or Proportional Regulation
Sealing Form:
Stainless Steel Movable Hard Seal, STL Surfacing, PTFE, etc.
Physical Specifications
Material & Connection
Connection Method:
Flange Connection, Threaded Connection, Welding
Valve Body Material:
HT200, ZG230-450, ZG1Cr18Ni9Ti, SUS304, SUS316, WCB
Valve Core Material:
1Cr18Ni9Ti, Stellite Alloy Surfacing, SUS304, SUS316
Packing Material:
Graphite, PTFE
Protection Grade:
IP67
Applicable Medium
- Petroleum
- Neutral Liquid
- Paper Pulp
- Gas
Standards Compliance
Manufacturing Standard:
JB/T8692-199
Design Standard:
GB/T4213-92
Inspection Standard:
JB/T 9092
API598
Main Parameters
| Nominal Diameter | DN20～DN200 |
| Operating Temperature | -30℃-350℃ |
| Nominal Pressure | 1.6Mpa, 4.0MPa, 6.4MPa |
| Air Supply Pressure | 0.14～0.4MPa |
| Applicable Medium | Neutral liquid, petroleum, paper pulp, gas |
| Action Mode | Direct action, reverse action |
| Diaphragm Material | Nitrile rubber reinforced with polyester fabric |
| Spring Range | 20～100KPa, 40～200KPa, 80～240KPa |
| Connection Method | Flange connection, threaded connection, welding |
| Control Mode | On-off or proportional regulation |
| Valve Body Material | HT200, ZG230-450, ZG1Cr18Ni9Ti, SUS304 stainless steel, SUS316 stainless steel, WCB |
| Valve Core Material | 1Cr18Ni9Ti, Stellite alloy surfacing, SUS304 stainless steel, SUS316 stainless steel |
| Ball Valve Seal | Stainless steel movable hard seal, STL surfacing, PTFE, etc. |
| Bellows Material | 1Cr18Ni9Ti |
| Gasket | Rubber asbestos plate, asbestos spiral wound gasket |
| Corrugated Diaphragm | Nitrile rubber reinforced with polyester fabric |
| Spring | 60Si2Mn |
| Valve Stem, Push Rod | 2Cr13, 1Cr18Ni9Ti, 304, 316L |
| Bushing | 2Cr13 |
| Packing Material | Graphite, PTFE |
| Manufacturing Standard | JB/T8692-199 |
| Design and Manufacturing Standard | GB/T4213-92 |
| Product Inspection and Test | JB/T 9092, API598 |
1.Overall Dimensions and Weight Dimension Drawings of Standard Type, Heat Dissipation Type, Bellows Seal Type and Jacket Insulation Type
表一：
| Nominal Diameter DN (mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | PN16~40 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 | 400 | 480 | 600 |
| PN64~100 | 206 | 210 | 230 | 251 | 286 | 311 | 337 | 394 | 450 | 508 | 650 | |
| H₂ | 125 | 125 | 155 | 155 | 165 | 200 | 205 | 210 | 275 | 330 | 372 | |
| A×H₂ | Pneumatic | Φ282*260 | Φ308*282 | Φ394*362 | Φ498*436 | |||||||
| Electric | Φ225*370 | Φ255*500 | Φ310*700 | Φ310*750 | ||||||||
| H₃ | 212 | 212 | 222 | 226 | 230 | 335 | 335 | 345 | 414 | 456 | 478 | |
| H₄ | 326 | 326 | 394 | 394 | 398 | 605 | 605 | 618 | 688 | 690 | 708 | |
| C×H₅ | Φ220*180 | Φ270*240 | Φ320*315 | |||||||||
| Jacket Type Flange Specifications D₂ | 40 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | |
| Weight (Kg) | PN16 | 20 | 21 | 24 | 33 | 37 | 65 | 68 | 56 | 118 | 145 | 215 |
| Weight (Kg) | PN64 | 23 | 24 | 32 | 44 | 53 | 76 | 81 | 100 | 156 | 178 | 265 |
2.Overall Dimensions and Weight of Low-temperature Type
表二：
| Nominal Diameter DN (mm) | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L、A×H2 | See Table 1 | |||||||||||
| H1 | 700 | |||||||||||
| H3 | 92 | 96 | 115 | |||||||||
| ΦD1 | PN16~40 | 230 | 230 | 250 | 270 | 305 | 342 | 375 | 430 | 490 | 556 | 665 |
| PN64~100 | 270 | 270 | 305 | 342 | 375 | 430 | 492 | 556 | 665 | 665 | 765 | |
| ΦD2 | PN16~40 | 310 | 310 | 335 | 355 | 390 | 430 | 465 | 520 | 585 | 660 | 770 |
| PN64~100 | 355 | 355 | 390 | 430 | 465 | 520 | 585 | 600 | 770 | 770 | 890 | |
| h | 12 | 12 | 12 | 12 | 12 | 15 | 15 | 15 | 18 | 18 | 18 | |
| PN16~40 | 260 | 260 | 285 | 305 | 340 | 370 | 405 | 460 | 525 | 590 | 700 | |
| PN64~100 | 305 | 305 | 340 | 370 | 405 | 460 | 525 | 590 | 700 | 700 | 805 | |
| PN16~40 | 290 | 290 | 315 | 335 | 370 | 400 | 435 | 490 | 555 | 630 | 740 | |
| PN64~100 | 335 | 335 | 370 | 400 | 435 | 490 | 555 | 630 | 740 | 740 | 845 | |
| D5 | Φ285 | Φ470 | Φ115 | |||||||||
| n-M | 8-M12 | 8-M14 | 10-M14 | 12-M16 | 14-M16 | 16-M16 | 18-M16 | |||||
| C×H5 | Φ220×182 | Φ270×240 | Φ320×315 | |||||||||
| Weight (Kg) | 24 | 25 | 28 | 36 | 45 | 68 | 73 | 88 | 162 | 176 | 284 | |
