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Flowserve-Serck Audco-Lubricated Plug Valves - Twin Isolation

Lubricated Plug Valves - Twin Isolation

BRAND: Serck Audco

The Twin Isolation Lubricated Plug Valve is a reliable, double isolation plug valve with two independent obturators in a single body. It is ideal for double block and bleed applications.


  • General Industry
  • Oil & Gas
  • Power

industry sectors

  • Mining
  • Upstream Exploration & Production
  • Midstream Transportation
  • Downstream Processing
  • Concentrated Solar Power (CSP)
  • API 6D
  • API 6A
  • ISO 14313
  • ISO 10423
  • API 599
  • BS 5353
Design Range

Size Range: 

  • DN 15 to 600
  • NPS ½ to 24

Pressure Class Range: 

  • PN 20 to 420
  • Class 150 to 2500
  • API 2000 to 10000

Seating Material: Wide Metal-to-Metal integral with body and plug

Features & Benefits
  • Improved plant and personnel safety assured by a double isolation design that allows the operator to verify valve isolation before carrying out maintenance
  • A cost-, space- and weight-saving alternative to a double block and bleed system using two valves in a series
  • Ease of installation from a compact design with the same face-to-face dimension as a single valve, often replacing it without the need for pipe work modifications
  • Greater process control via pressure balanced design that provides a true bubble-tight double isolation capability within a single valve body

Single Isolation

Double Isolation


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