DOUBLE BLOCK & BLEED PLUG API6D
Construction
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 plugs
plug by dovetails load carried on special design, 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
|
Design |
API 6D, ASME B16.34 |
|
Face to Face dimensions |
API 6D |
|
Flanges |
ASME B16.5, ASME B16.47 |
|
Fire Safe |
ISO 10497, API 6FA |
|
Fugitive Emission |
ISO 15848, TÜV, Shell MESC SPE 77-312 |
|
Testing |
API 598, API6D, ISO 5208 |
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Marking |
API6D,CE, MSS-SP-25 |
|
Topworks |
ISO 5210 |
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