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Flowserve-Edward-Piston (Lift) Check Valves - Bolted Bonnet

Piston (Lift) Check Valves - Bolted Bonnet

BRAND: Edward

Bolted Bonnet Piston (Lift) Check Valves are durable, small bore check valves, forged and equipped with a bolted cover design to enable easy maintenance.


  • Chemicals
  • Oil & Gas
  • Power

industry sectors

  • Basic (Organic & Inorganic)
  • Specialty (Fine & Consumer)
  • Downstream Processing
  • Nuclear
  • Conventional Steam
  • Geothermal
  • Combined Cycle

ASME B16.34
ASME Section III

Design Range

Size Range: NPS 1/2 to 2
DN 15 to 50

Pressure Class Range: 600 to 1500
PN 110 to 260

Seating Material: Metal

Features & Benefits
  • Increased uptime from the use of anti-thrust rings in the body-guided disc, which eliminates misalignment and galling
  • Greater process control due to integral hard-surfaced seat, which allows positive shutoff and seat life
  • Lower maintenance costs due to bolted bonnet, four-bolt design
  • Longer service life from positive metal to metal stop design that prevents over-compression of the gasket
  • High-performance delivered through optimization of flow passages to minimize flow direction changes and reduce pressure drops


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