DOUBLE BLOCK & BLEED API6D
Zero-Leakage Double Block-and-Bleed Plug / Ball Valve with Retracting Seals.
retracted slip design minimizes leakage risk, reduces wear and maintenance, and
The double block-and-bleed (DBB) VST GENERAL TWIN SEAL VALVE plug valve reduces this constant wear by using two seating slips mounted independently on a tapered
plug by dovetails load carried on special design Helix trunnion, which
mechanically retract from the seating surface prior to rotating. This provides
a bubble-tight verifiable dual seal without seal abrasion.
- Industrial processes
- Oil and gas
- Aviation fueling