The high pressure trunnion mounted ball valve has been designed three piece body type and with two floating seats, which are movable under the pressure of medium.
Email-us info@tawajodindustrial.ae
The high pressure trunnion mounted ball valve has been designed three piece body type and with two floating seats, which are movable under the pressure of medium. Under the bottom of seats, seat pre-loading springs are positioned to ensure two floating seats can attach the ball’s surface tightly, other more, pressure of medium also can push seats to attach ball tightly to ensure sealing more reliable.
The high pressure trunnion mounted ball valves are produced with spring-loaded seats. This spring load keeps the seat in contact with the ball even in absence of line pressure and makes very efficient seal at low line pressure. As line pressure increases, the seat area creates a piston effect which forces the seat against the ball, therefore a tight seal becomes effective. If the pressure is higher, the force exerted by the seat on the ball is increased by action of the pipeline pressure.
The high pressure trunnion ball valve is equipped with a movable seat seal ring which can generate displacement under the pressure of medium. In case that any medium pressure exists, the pressure will press the valve seat seal ring onto the ball tightly, guaranteeing the sealing performance of the ball valve.
Design Features
The ball valve are designed in accordance with ISO14313、API 6D、BS 5351、GB/T 19672;
Self lubrication, low friction PTFE is used for stem bearings, stem seals, and body seats.
NYLON or other low friction materials are used for seat inserts.
Self lubricating seals and stem bearing give predictable operating torque for the life of the valve.
Full bore and reduced bore design with the minimum flow resistance (zero actually);
Emergency sealant injection;
Cavity pressure self relief;
Independent ball and stem;
Low emission packing;
Fire safe, anti-static and anti-blowout stem design;
Valve seat function DBB, DIB-1, DIB-2;
Optional extended bonnet.
Product Range
Body material: carbon steel, stainless steel, alloy steel
Nominal diameter:2”～24”
End Connection: RF, RTJ, BW
Pressure range: Class900～2500LB
Operation: Worm Gear, Electric, Pneumatic, Gas over Oil Actuator and Electro-hydraulic Actuator
| Brand | 3D |
| Valve Type | High Pressure Trunnion Ball Valve |
| Valve Material | Cast steel, stainless steel, special alloy, etc |
| Valve Test | 100% quantity tested before delivery |
| Valve Guarantee | 18 months from the date of dispatch ex works, or 12 months from date of commodity installation. |
| Valve Painting | Customer request |
| Valve Package | Wooden case |
| MOQ | No requirement |
| Valve Certificate | API 6D/CE/ISO9001/ISO14001 |
| Delivery Detail | Shipped in 4 or 6 weeks after payment |
| Port | SHANGHAI |
| Payment Terms | L/C,D/A,D/P,T/T |
| Certificate Offered | Packing List，Commercial Invoice，Test Reports and Material Certificates，Certificate of quality and quantity, Seller’s Certificate of Guarantee |