Vihung - Model API 6D -Full Weld Ball Valve
Fully Welded Trunnion Ball Va(ve,The valves suitable for Oil & Gas production, processing, transportation, distribution, chemical and petrochemical refining on above ground and below ground installations.
Trunnion ball valves have the obturator bounded by trunnions which do not allow axial displacements of the ball itself in the flow direction; line pressure compresses the seat onto the ball, the contact between surfaces generates the valve sealing; trunnion standard construction ensure automatic cavity relief in case of overpressure in body cavity; these valves can be selected for a wide range of applications with no specific limits to sizes and pressures. Fully welded constructions, both flanged or with welded ends, are preferable solution when no maintenance is required on above ground or below ground (buried) installations and allows a real 0 leakage feature.
Fully welded ball valves are fully welded with forged bodies that reduce weight and increase strength. They connect and close the flow of media in many different piping systems. Because the valve seat is composed of carbonized teflon sealing ring and disc spring, the fully welded ball valve has strong adaptability to pressure and temperature changes.
They are widely used in various fields. Its superior quality and high performance stability is far better than the ordinary cast steel ball valves, and its service life is far greater than the cast steel ball valve. And fully welded ball valves are commonly used in city gas, urban heating, petrochemical, shipbuilding, steel, pressure regulating stations, power plants and other types of pipeline equipment.
MATERIALS OF CONSTRUCTION:
- Low Temperature and Low Alloy Carbon Steel
- Stainless steel, Duplex and Super Duplex
- Nickel alloys
- Body Material: A105,A350 LF2.A182 F304/F316/F316L/F317/F321/F51/F51/F53/F55
- Ball and Stem Material: ASTM A182 F6A/17-4PH/XM-19/A182 F51/A182 F53/A182 F55
- Seat: RPTFE/DEVLON/PEEKMTON/METALTO METAL
