Extended Stem Trunnion mounted Ball Valve

EDVC Extended stem ball valves are mainly used where normal distance lever operated ball valves are covered with insulation. Sharvil engineers offers very reliable and long life performing extended stem design ball valves in investment casting and sand casting bodies. 4”, 6” 8” or longer stem are provided according to application.

MAIN FEATURES:

The forged body with regular structure and even thickness can avoid shrinkage cavities, pin holes, cracks, sand holes and other defects occurring to casting body valves.

Fully-welded ball valves can be spherical and cylindrical type. Usually the spherical type has only one welding seam on the body, the cylindrical type has two welding seam on the body.

Product Range:

Body material:Stainless Steel,Forged carbon steel/stainless steel,Alloy Steel

Nominal diameter:½” to 52”

Pressure range:Class150～2500(PN10~PN420)

End connection: RF, RTJ, BW

Working temperature:-46℃～+200℃

Operation:Wrench, worm gear, electric , pneumatic , gas over oil actuator and electro-hydraulic actuator.

Design Features:

The ball valve are designed in accordance with ISO14313,API 6D;

Simple structure with good tightness and small torque;

With a fully-welded valve body, full bore and the minimum flow resistance (zero actually);

Emergency sealant injection;

Cavity pressure self relief;

Low emission packing;

Fire safe, anti-static and anti-blowout stem design;

Valve seat function DBB, DIB-1, DIB-2;

Optional extended bonnet;

Optional overlay stainless steel on body to seat surface and/or gasket container surface;

Be able to be used for underground installation without corrosion of interior parts, therefore, it is the best application for petroleum and natural gas line systems;

Service life up to 30 years.

Welded body construction eliminates body flanges, reduces potential leak paths and increases
resistance to pipeline pressure and stresses.
Forged steel construction ensures uniform grain structure, toughness and sound weld quality.
Engineered designs and features provide maintenance free performance.
Provides safe and reliable operation to control environmental hazards