Product Details

BOLTED BONNET SWING CHECK VALVES

SKU:MARSP28

Category: INDUSTRIAL VALVES, Check Valves

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"MARS" make Check Valves are designed to close quickly with positive shutoff in either horizontal or vertical (flow up) pipe runs. The body seat ring is installed on a 3° or 5° angle. This allows our swing check valve to close completely even when installed in a horizontal pipe run with no flow.

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Features and benefits

● Body and cover: Precision machined castings.
Exclusive: Disc shaft does not penetrate body.
● Body and cover joint: Accurately machined,
fully-enclosed gasket.
● Disc: Robust one-piece construction to withstand the severe shock of check valve service. Hardfaced with 13Cr, CoCr alloy, SS 316, or Monel, ground and lapped to a mirror finish. Sizes NPS 2–6 (DN 50–150) may have solid CA 15 (13Cr) disc. SS 316 disc with CoCr alloy facing also available.
● Disc assembly: Non-rotating disc is fastened securely to disc hanger with a lock nut and cotter pin. Disc hanger is supported on a sturdy disc carrier hinge pin of excellent bearing qualities. All parts are accessible from top for easy servicing.
● Flanges:
ASME Classes 150–300: 1⁄16” raised face.
ASME Classes 600–1500: 1⁄4” raised face.
Finish 125–250 AARH for all valves.