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Q447F-100C
DIDTEK
TRBV-FTBV-048
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The API Carbon Steel Trunnion Ball Valve is engineered for dependable isolation in demanding oil, gas and petrochemical pipeline networks. Its heavy-duty carbon steel construction and fixed-ball architecture are intended to withstand high pipeline loads while maintaining stable shut-off performance.
The trunnion-mounted ball is mechanically supported so that line-pressure thrust is transferred through the trunnion system rather than directly into the downstream seat. This helps reduce seat loading and operating torque, which is particularly valuable for large-bore and high-pressure service.
The valve can be supplied with full-port or reduced-port configurations and with RF, RTJ or butt-weld end connections according to project requirements. Internal trim options may include ENP-treated surfaces or corrosion-resistant alloy components where the process medium requires additional protection.
The current product configuration is listed with an A105 body, DEVLON soft seat, DN400 size and PN100 pressure rating. Split-body construction and worm-gear operation support practical installation, controlled quarter-turn operation and routine maintenance.
Parameter Name | Parameter |
Size Range | DN400 |
Pressure Range | PN100 |
Material | A105 |
Seal | Soft Seat: DEVLON |
Temperature Range | -29°C ~ 100°C |
Design According | GB/T 12237 |
Face to Face | GB/T 12221 |
End Flanges | GB/T 20592 |
End Connection Type | RJ |
Fire Safety | API 6FA |
Inspection and Test | GB/T 13927 |
Operate | Worm Gear |
Body Type | Split Body |
Type of Valve | Trunnion Ball Valve |
Suitable Medium | Water, Steam, Oil and compatible corrosive liquids |
Trunnion-Mounted Structure: The fixed ball is mechanically supported to reduce direct seat loading and help maintain controlled operating torque under pressure.
DBB / DIB Seat Options: Independent spring-loaded seat arrangements can be configured for Double Block and Bleed or Double Isolation and Bleed duties according to the required isolation philosophy.
Emergency Sealant Injection: Optional secondary injection points at the stem and seats provide a maintenance backup if the primary sealing surfaces are affected by debris or minor damage.
Safety Features: Anti-static continuity, an anti-blowout stem and fire-safe design features support demanding hydrocarbon pipeline service.
Brand | DIDTEK |
Structure | Trunnion Ball |
Material | Carbon Steel |
Type | Forged Ball Valve |
Test | 100% quantity tested before delivery |
Guarantee | 18 months after shipment and 12 months after installation |
Delivery | 15 - 60 days |
Sample | Sample available by Didtek Valve |
Color | Customer request |
Packing | Plywood Case |
MOQ | 1 Set |
Certificate | API6D, CE, UKCA, ISO9001, TS, EAC, ISO15848, TA-LUFT, API607, API6FA, etc. |
Place of Origin | Zhejiang, China (Mainland) |
Delivery Detail | Shipped in 15-30 days after payment |
Port | Shanghai or Ningbo |
Payment Terms | L/C, D/A, D/P, T/T, Western Union |
The Carbon Steel Trunnion Ball Valve is intended for heavy-duty pipeline isolation where stable operation, robust pressure containment and maintainable sealing systems are required.
Natural Gas Pipelines: Suitable for mainline isolation, compressor stations and transmission networks where the trunnion design helps manage high differential pressure.
Petroleum Refineries: Applicable to crude oil, hydrocarbon transfer and process isolation duties within the specified pressure, temperature and trim limits.
Power & Utility Systems: Can be applied in compatible water, steam and utility pipelines where large-bore isolation and controlled gearbox operation are required.
Industrial Pipeline Projects: Multiple port, trim and end-connection configurations support integration into new-build and retrofit piping systems.
