FLANGED

Flanged Swing Check Valves: Heavy-Duty Industrial Non-Return

Flanged swing check valves are engineered to provide robust, automatic backflow prevention in large-diameter, high-capacity piping networks. They feature integrated solid outer flanges that bolt directly to the pipeline, creating a rigid mechanical joint that easily absorbs structural pipe stress and thermal movement.

The heavy cast body houses a robust hinged disc that lifts entirely out of the flow stream, ensuring a completely unrestricted flow path capable of handling high-volume fluids and suspended solids with virtually zero pressure drop.

  • Best Used For: Municipal water treatment, wastewater and sewage mains, agricultural irrigation, and industrial plant processing lines.
  • Key Specifications: Precision-drilled to comply with major global standards, including EN 1092-1 (PN16/PN40) and ASME B16.5 (Class 150/300). Many variants can be fitted with an external lever and weight or mechanical damper to assist closure and reduce slamming in high-velocity systems.
  • Maintenance Advantage: The bolted bonnet design allows maintenance crews to easily access the internal hinge pin, disc, and seat ring during scheduled plant shutdowns.
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From £274.60 To £2,077.90 (exc VAT)
From £329.52 To £2,493.48 (inc VAT)