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GB/T 12237 Metal-Seated Ball Valve - Low Platform
STELLITE METAL-TO-METAL · UP TO +350°C · STEAM & THERMAL OIL
Chinese-standard Metal-Seated ball valve for high-temperature
steam, thermal oil, and abrasive media service. GB/T 12237
construction with Stellite metal-to-metal sealing (HRC 38–45).
Low platform ISO 5211 interface for pneumatic/electric
actuator automation. Service temperature up to +350°C —
well beyond PTFE soft seat limits.
| GB/T 12237 | |
|---|---|
| Pressure | PN16 / PN25 / PN40 |
| Size Range | DN15 – DN200 |
| Body | WCB · CF8 · CF8M (316SS) |
| Seat | Stellite Metal-Seated Alloy |
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— Full Specifications
GB/T 12237 Metal-Seated Ball Valve - Low Platform - Parameter Table
| PARAMETER | SPECIFICATION |
|---|---|
| Standard | GB/T 12237 |
| Pressure Rating | PN16 / PN25 / PN40 |
| Size Range | DN15 – DN200 |
| Body Material | WCB (Carbon Steel) / CF8 (304 SS) / CF8M (316 SS) |
| Ball Material | A105+ Stellite Overlay / SS316 + Stellite Overlay |
| Seat Material | Stellite Hard Alloy (Metal-to-Seated) |
| Stem Material | SS304 / 17 - 4PFXM-19 |
| End Connection | Flanged – GB/T 9113 |
| Platform Type | Low Platform – ISO 5211 / Bracket & Coupler for Actuator |
| Leakage Class | GB/T 26480 Class B / API 598 Class IV |
| Temperature Range | -29°C ~ +350°C |
| Applicable Media | Steam / High-Temp Oil / Abrasive / 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 Hard Seated Ball Valve – Low Platform
- Full parameter table
- Dimensional drawing
- Materials & standards list
- Ordering code guide
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— WHY bAUTU
Why Specify This Valve from Bautu
High-Temperature Stellite Trim
Stellite 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 distillation.
GB National Standard — Domestic Project Ready
GB/T 12237 compliance with GB/T 9113 flange dimensions. Accepted on Chinese power generation, district heating, and petrochemical EPC projects without standard conversion.
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