Description
Size Range(s)
- NPS 2 – 48
- (DN 50 – 1200)
Pressure Rating
- ASME Classes 150 – 1500
Standard Connections
- Flanged
Cast Steel Bolted Bonnet Swing Check Valves
- 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.
