D138 Swing Check Valve

• Check valves permit flow in one direction only and close automatically if flow reverses.

• Entirely automatic in action, depending upon pressure and velocity of flow within the line to perform their functions of opening and closing

• The Crane D138 Bronze check valve is of the swing variety.

• This valve carries the British Standards Institution kitemark

D138 PRESSURE RATING: PN25

TEMPERATURE OPERATING RANGE: -10 To 180°c

UK END CONNECTION: Taper threaded to BS EN 10226-2 (ISO 7-1) formerly BS 21 US END CONNECTION: ANSI B1.20.1 (please add suffix AT to denote American Thread)

OPERATOR: Swing Type Check Valve

MATERIAL

Body Bronze BS EN 1982 CC491K

Cap Bronze BS EN 1982 CC491K

Disc Brass BS EN 12164 CW614N 3/8 – 1

Disc Bronze BS EN 1982 CC491K 11/4 – 3

Hinge Bronze BS EN 1982 CC491K All

Hinge Pin Stainless Steel 3/8 – 2

Hinge Pin Stainless Steel ASTM A182 Gr.F316 21/2 & 3

Hinge Nut Brass BS EN 12164 CW614N All

ID Plate Aluminium All Drive Pin Steel – Electro Brassed All

Hinge Pin Plug Brass BS EN 12164 CW614N 21/2 & 3