Expanding Gate Valve

Main Features: TheExpanding gate valve is an efficient and reliable straight-through gate valve with two floating seats and the expansion gate is parallel to the gate. The expansion action between the gate and the section provides a tight mechanical seal upstream and downstream. The full-bore conduit design eliminates flow turbulence. The pressure drop is no greater than that through the same length of pipeline.

Design standard: API 6D

Product range:

1. Pressure range: CLASS 150Lb~2500Lb

2. Nominal diameter: NPS 2~48″

3. Valve body material: carbon steel, stainless steel, duplex stainless steel, alloy steel, nickel alloy

4. End connection: RF RTJ BW

5. Operation mode: handwheel, gearbox, electric, pneumatic, hydraulic device, gas-liquid linkage device;

Product features:

1. Bidirectional valve seat design, the valve seat can seal against the pressure source in either direction.

2. Bidirectional sealing, not restricted by flow direction;

3. When the valve is in the fully open position, the valve seat surface is on the outside of the liquid flow, always in full contact with the gate, which can protect the valve seat surface and is suitable for cleaning pipelines;

4. Optional dark stem design;

5. Optional spring packing;

6. Low emission packing can be selected according to ISO 15848 requirements;

7. Optional extended valve stem design;

8. Normally open or normally closed, through-duct design;