Series 822 Wheatley Check Valves | SLB

Series 822 Wheatley

Check valves

Series 822 Wheatley check valve in a pipeline at a processing facility.

Series 822 Wheatley™ check valves are threaded-cover, fully opening swing check valves, designed to prevent backflow of liquids or gas in pipeline applications.

  • Downstream of pumps and compressors to prevent reverse flow
  • Pipelines transporting liquids
  • Gas storage
  • Gas processing stations
  • Land exploration and development drilling
  • Pump stations and wellhead inspection facilities
These check valves protect your pumps by preventing backflow. The top-entry design enables inline repairs, saving time.
  • Compact design
  • Full opening
  • Beveled, self-aligning clapper and seat design with a molded seal for bubbletight shutoff
  • Suitable for vertical flow upward or horizontal installation
  • Three different seal options
  • 316 stainless steel standard trim, suitable for a broad range of service conditions
  • NACE MR0175/ISO 15156 compliant
  • Designed per ASME B16.34