Description
Gate Valve | ROBEX® Flanged Valve for Chemical Industry and Thermal Power Plants
The ROBEX® gate valve is a versatile solution for the chemical industry, thermal power plants, and other applications. With its compact design and high-quality materials, it provides reliable performance in various environments. Available in different sizes and configurations, it can be operated manually, pneumatically, electrically, or by gearbox to meet various application needs. Compliant with international standards, this valve ensures effective sealing and exceptional durability.
Executive Standards:
Design Specifications: GB/T 12234
Structural Length: GB/T 12221
Connection Flanges: JB/T 79.1
Testing and Inspection: JB/T 9092
Pressure – Temperature: GB/T 9131
Product Identification: GB/T 12220
Features
Domains of use
Materials
Dimensions
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Features of the Gate Valve
- Compact structure, reasonable design, good valve rigidity, smooth passage and small flow coefficient.
- The sealing surface is made of stainless steel and carbide, with long life.
- Flexible graphite packing, reliable sealing, light and flexible operation
- The driving mode is manual, pneumatic, electric, gear drive.
- The structure is elastic wedge single gate, rigid wedge single gate and double gate.
Performance parameters
| Nominal pressure PN（MPa) | case | test pressure（MPa) | Sealed | |
| Sealed (liquid) | Seal (gas) | |||
| 1.6 | 2.4 | 1.8 | 0.6 | 1.8 |
| 2.5 | 3.8 | 2.8 | 0.6 | 2.8 |
| 4.0 | 6.0 | 4.4 | 0.6 | 4.4 |
| 6.4 | 9.6 | 7.0 | 0.6 | 7.0 |
| 10.0 | 15.0 | 11.0 | 0.6 | 11.0 |
| 16.0 | 24.0 | 18.0 | 0.6 | 18.0 |
Suitable medium and applicable temperature
| Shell material | Suitable media | Applicable temperature (℃) |
| Carbon steel (C type) | Water, steam, oil | ≤425 |
| Chromium nickel titanium steel (P type) | Nitric acids | ≤200 |
| Chrome nickel molybdenum titanium steel (R type) | Acetic acid | ≤200 |
| Chrome-molybdenum steel (type I) | Water, steam, oil | ≤550 |
The main part material
| Body, bonnet | Valve plate, seat | Valve stem | Stem nut | Filler | Handwheel |
| Carbon steel | High-quality carbon steel + carbide or stainless steel | Chrome stainless steel | Aluminum bronze | Graphite asbestos packing | Malleable iron |
| Chromium nickel titanium steel | Stainless steel, stainless steel + cemented carbide | Chrome nickel-titanium stainless steel | Aluminum bronze | Teflon | Malleable iron |
| Chromium nickel molybdenum titanium steel | Stainless steel, stainless steel + cemented carbide | Chrome nickel-titanium stainless steel | Aluminum bronze | Teflon | Malleable iron |
| Chrome-molybdenum steel | Alloy steel + Carbide | Chrome-molybdenum steel | Aluminum bronze | Flexible asbestos | Malleable iron |
The main shape and connection dimensions
| Nominal diameter | The main dimensions and connection dimensions | ||||||||
| L | D | D1 | D2 | b | Z-d | H | D0 | ||
Z41H-16C | |||||||||
| 15 | 130 | 95 | 65 | 45 | 14-2 | 4-Φ14 | 170 | 120 | |
| 20 | 150 | 105 | 75 | 55 | 14-2 | 4-Φ14 | 190 | 140 | |
| 25 | 160 | 115 | 85 | 65 | 14-2 | 4-Φ14 | 205 | 160 | |
| 32 | 180 | 135 | 100 | 78 | 16-2 | 4-Φ18 | 270 | 180 | |
| 40 | 200 | 145 | 110 | 85 | 16-3 | 4-Φ18 | 310 | 200 | |
| 50 | 250 | 160 | 125 | 100 | 16-3 | 4-Φ18 | 358 | 240 | |
| 65 | 265 | 180 | 145 | 120 | 18-3 | 4-Φ18 | 373 | 240 | |
| 80 | 280 | 195 | 160 | 135 | 20-3 | 8-Φ18 | 435 | 280 | |
| 100 | 300 | 215 | 180 | 155 | 20-3 | 8-Φ18 | 500 | 300 | |
| 125 | 325 | 245 | 210 | 185 | 22-3 | 8-Φ18 | 614 | 320 | |
| 150 | 350 | 280 | 240 | 210 | 24-3 | 8-Φ23 | 674 | 360 | |
| 200 | 400 | 335 | 295 | 265 | 26-3 | 12-Φ23 | 811 | 400 | |
| 250 | 450 | 405 | 355 | 320 | 30-3 | 12-Φ25 | 969 | 450 | |
| 300 | 500 | 460 | 410 | 375 | 30-3 | 12-Φ25 | 1145 | 580 | |
| 350 | 550 | 520 | 470 | 435 | 34-4 | 16-Φ25 | 1280 | 640 | |
| 400 | 600 | 580 | 525 | 485 | 36-4 | 16-Φ30 | 1452 | 640 | |
Z41H-25 | |||||||||
| 15 | 130 | 95 | 65 | 45 | 16-2 | 4-Φ14 | 170 | 120 | |
| 20 | 150 | 105 | 75 | 55 | 16-2 | 4-Φ14 | 190 | 140 | |
| 25 | 160 | 115 | 85 | 65 | 16-2 | 4-Φ14 | 205 | 160 | |
| 32 | 180 | 135 | 100 | 78 | 18-2 | 4-Φ18 | 270 | 180 | |
| 40 | 200 | 145 | 110 | 85 | 18-3 | 4-Φ18 | 310 | 200 | |
| 50 | 250 | 160 | 125 | 100 | 20-3 | 4-Φ18 | 358 | 240 | |
| 65 | 265 | 180 | 145 | 120 | 22-3 | 8-Φ18 | 373 | 240 | |
| 80 | 280 | 195 | 160 | 135 | 22-3 | 8-Φ18 | 435 | 280 | |
| 100 | 300 | 230 | 190 | 160 | 24-3 | 8-Φ23 | 500 | 300 | |
| 125 | 325 | 270 | 220 | 188 | 28-3 | 8-Φ25 | 614 | 320 | |
| 150 | 350 | 300 | 250 | 218 | 30-3 | 8-Φ25 | 674 | 360 | |
| 200 | 400 | 360 | 310 | 278 | 34-3 | 12-Φ25 | 811 | 400 | |
| 250 | 450 | 425 | 370 | 332 | 36-3 | 12-Φ30 | 969 | 450 | |
| 300 | 500 | 485 | 430 | 390 | 40-4 | 16-Φ30 | 1145 | 580 | |
| 350 | 550 | 550 | 490 | 448 | 44-4 | 16-Φ34 | 1280 | 640 | |
| 400 | 600 | 610 | 550 | 505 | 48-4 | 16-Φ34 | 1452 | 640 | |
