GB/T 12237 Metal-Seated Ball Valve - Standard Platform
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GB/T 12237 Metal-Seated Ball Valve - Standard Platform
STELLITE METAL-TO-METAL · HAND LEVER · UP TO +350 °C
Manually operated Chinese-standard Metal-Seated ball valve for high-temperature steam, thermal oil, and abrasive media
in space-constrained pipeline installations. GB/T 12237
construction with Stellite metal-to-metal sealing (HRC 38–45).
Direct hand-lever operation removes actuator complexity.
Service temperature up to +350°C — well beyond PTFE soft seat limits.
| GB/T 12237 | |
|---|---|
| Pressure | PN16 / PN25 / PN40 |
| Size Range | DN15 – DN150 (NPS ½" – 6") |
| Body | WCB · CF8 · CF8M (316SS) |
| Operation | Hand Lever (Manual) |
Sales team responds within 24 hours
— Full Specifications
GB/T 12237 Metal-Seated Ball Valve - Standard Platform - Parameter Table
| PARAMETER | SPECIFICATION |
|---|---|
| Standard | GB/T 12237 |
| Pressure Rating | PN16 / PN25 / PN40 |
| Size Range | DN15 – DN150 (NPS 1/2" – 6") |
| Body Material | CF8 (ASTM A351 304SS) / CF8M (316SS) / WCB (Carbon Steel) |
| Ball Material | SS316 + Stellite Overlay / A105 + Stellite Overlay (HRC 38–45) |
| Seat Material | Stellite Hard Alloy (Metal-to-Seated) |
| Stem Material | SS316 / SS316 / 17-4PF XM-19 |
| End Connection | Flanged – GB/T 9113 / RF Face |
| Platform Type | Standard Platform – Hand Lever Operated |
| Anti-Static Device | Standard Compliant |
| Leakage Class | GB/T 26480 Class B / API 598 Class IV (Metal-to-Metal) |
| Test Standard | GB/T 26480 / API 598 (100% Factory Pressure Test) |
| Temperature Range | -29°C ~ +350°C |
| Applicable Media | High-Temp Steam / Thermal Oil / Abrasive / Mildly Corrosive Media |
Our Production Process
1. Casting
2. Machining
3. Testing
4. Loading
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· Product documentation
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This Product Spec Sheet
Single-page datasheet for GB/T 12237 Metal-Seated Ball Valve
– Standard Platform
- Full parameter table
- Dimensional drawing
- Materials & standards list
- Ordering code guide
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— WHY bAUTU
Why Specify This Valve from Bautu
Stellite Trim — Beats PTFE Above 180°C
HRC 38–45 cobalt-chromium overlay maintains hardness and shutoff integrity up to 350°C — well past PTFE thermal limit. Ideal for steam mains, thermal oil heaters, and refinery process where soft seats fail in months.
No Actuator Required — Lowest TCO
Manual hand-lever removes pneumatic/electric actuator cost and field wiring. Compact body profile fits space constrained piping. Domestic GB/T 9113 flange compatibility — no adapter spool for Chinese EPC projects.
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