Investment Casting & Industrial Valves 
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Model: GB
Stainless Steel Ball Valve with PTFE/PPL/Alloy Steel Seat
- Nominal Diameter: DN15-DN300
- Materials: 316, CF8M, 1.4408, WCB, 304, CF8, etc.
- Design & Manufacture: GB/T 12237
- Face-to-Face: GB/T 12221
- Flange End: JB/T79
- Inspection & Testing: JBf T9092
- Surface Treatment: Pickling, Passivation, Polishing (or as per customer request)
- Operating Temperature: ≤ 120°C
- Suitable Media: Water, Steam, Oil, Gas, Acids, Alkalis, etc.
Test Pressure
| Test Item | Shell Test | Seal Test | Air Seat Test | |
| Medium | Water | Air | ||
| Nominal Pressure (MPa) | 1.6 | 2.4 | 1.8 | 0.6 |
| 2.5 | 3.8 | 2.8 | ||
| 4.0 | 6.0 | 4.4 | ||
| 6.4 | 9.6 | 7.0 | ||
Size (mm)
| DN | L | D | D1 | D2 | H | b-f | z-Ød | D0 |
| Q41F-16P | ||||||||
| 15 | 130 | 95 | 65 | 45 | 60 | 14-2 | 4-Ø14 | 108 |
| 20 | 140 | 105 | 75 | 55 | 64 | 14-2 | 4-Ø14 | 120 |
| 25 | 150 | 115 | 85 | 65 | 90 | 14-2 | 4-Ø14 | 165 |
| 32 | 165 | 135 | 100 | 78 | 105 | 16-2 | 4-Ø18 | 180 |
| 40 | 180 | 145 | 110 | 85 | 150 | 16-3 | 4-Ø18 | 240 |
| 50 | 200 | 180 | 145 | 100 | 190 | 16-3 | 4-Ø18 | 240 |
| 65 | 220 | 180 | 145 | 120 | 195 | 18-3 | 4-Ø18 | 320 |
| 80 | 250 | 195 | 160 | 135 | 215 | 20-3 | 8-Ø18 | 350 |
| 100 | 280 | 215 | 180 | 155 | 250 | 20-3 | 8-Ø18 | 400 |
| 125 | 320 | 245 | 210 | 185 | 280 | 22-3 | 8-Ø18 | 500 |
| 150 | 360 | 280 | 240 | 210 | 320 | 24-3 | 8-Ø23 | 600 |
| 200 | 400 | 335 | 295 | 265 | 370 | 26-3 | 12-Ø23 | 800 |
| 250 | 530 | 405 | 355 | 319 | - | 26-2 | 12-Ø26 | - |
| 300 | 610 | 460 | 410 | 375 | - | 28-2 | 12-Ø26 | - |
Valve Parts
| Component | Material | |||
| Body /Cap | CF8 | CF8M | CF3M | WCB |
| Ball | 304 | 316 | 316L | 304 |
| Stem | F304 | F316 | F316L | 2CR13 |
| Seat | PTFE / PPL / Alloy Steel | |||
| Packing /Gasket | PTFE / PPL / Graphite | |||
| Bolt | Stainless Steel | 35CrMoA | ||
| Nut | Stainless Steel | 45, 35CrMoA | ||
| Handle | Cast Steel | |||
Flow Control Products Manufacturing Since 1987
SDPLDL specializes in providing innovative flow control solutions for a wide range of industries. With a shared commitment to excellence and responsiveness, we design, manufacture, distribute, and repair high-quality valves, pipes to ensure optimal performance and reliability.
