Detailed Product Description

DGV brand cast steel bolted bonnet swing check valves are available in a complete range of body/bonnet materials and trims. The valves are designed to provide fast check valve action and maximum service life. All swing check valves are full ported, have full API 600 wall thickness, and meet the design requirements of ASME B16.34

DESIGN SPECIFICATIONS:

Wall thickness and general valve design:                               API 600, BS1868

Test:                                                                                     API 598

Pressuretemperature rating:                                                  ASME B16.34

Face-to-face dimensions for butt weld and flanged valves:    ASME B16.10

Flange design:                                                                       ASME B16.5

Butt welding design:                                                               ASME B16.25

PRODUCTS RANGE:

Size:                    2'' - 36".

Rating:                 ASME Class 150 - 1500.

Body Materials:    Carbon Steel, Stainless Steel, Alloy Steel. etc

Trim:                    As per API 600.

APPLICATION:

Oil, Gas, Refinery, Chemical, Petrochemical, Power plant, Water project, General Industry.

DESIGN FEATURES:

(1)Body and cover joint - accurately machined, fully enclosed gasket

(2) Hinge Pin precision machined solid pin for maximum strength and service life.

(3) Hinge designed to withstand the shock load of quick closing to insure longer life and continued shut-off.

(4) Seat Ring heavy duty, full ported seal welded into body.

(5) End Connections choice of flanged or butt-welding ends for piping flexibility.   

(6) Disc Stop provides positive stop in open position; positions disc to effectively function in either horizontal or vertical (flow-up) pipe runs.

(7) Disc assembly. Disc is fastened securely to disc hanger with a lock nut and cotter pin. Disc is free to rotate to avoid localized wear. Disc hanger is supported on a sturdy disc carrier hinge pin of excellent bearing qualities. All parts are accessible from top for easy servicing.

(8) Body full ported, heavy duty body with API 600 wall thickness for maximum service life.