DOUBLE BLOCK & BLEED PLUG API6D
Actuator: Manual, pneumatic (single or double-acting type), electric or hydraulic according to customer specification. ON/OFF function according to the application.
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