General Valve Twin Seal valves in use for aviation fueling. This double block-and-bleed (DBB) plug valve provides a bubble-tight verifiable dual seal without seal abrasion.

Zero-Leakage Double Block-and-Bleed Plug Valve with Retracting Seals. In meter block service, the differential pressure across each closed valve is very low. No assistance is required from …

The Twin Seal valve is a non-lubricated, resilient seal, plug- type valve which has a mechanical means of freeing the plug before it is rotated from the closed to the open position.

Introduced in 1941, GENERAL VALVE Twin Seal* plug valves were the first to meet the rigid requirements of double block-and-bleed service. In the years since, subtle yet significant …

Whether you need a replacement seal or slip from General Valve, Arm-Tex can help. We also help coordinate repairs for all General Twin Seal Valves. Request a quote from Arm-Tex for …

The double block-and-bleed (DBB) Cameron GENERAL VALVE Twin Seal plug valve reduces this constant wear by using two seating slips mounted independently on a tapered plug by …

Included in the following pages you will find assembly drawings, exploded views, parts lists, assembly tips, operational descriptions and routine maintenance requirements for the current …

TWIN SEAL valves are the recognized Hydrant Valves for airport service because: • They close quickly and easily • They require very little maintenance • They hold with zero-leakage • They …

Hawa Valves manufactures Double Block & Bleed Expanding Twin Seal Plug Valves used throughout the hydrocarbon, energy and process industries.

Arm-Tex provides leading-edge double block and bleed valve technology for petroleum applications. Franklin DuraSeal Double Block and Bleed Plug Valves, are completely …