Swing check valves
Overview
Category: Gate, globe, and check valves
Product line: Cast steel (bolted bonnet) valves
- Size range(s)
- NPS 2 - 48
(DN 50 - 1200) - Pressure rating
- ASME Classes
150 - 1500 - Standard connections
- Flanged
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.
