Wafer Check Valve

User Manual: Wafer Check Valve

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42 TECHNICAL HELPLINE: +44 (0)1473 277400
www.cranefs.com
TECHNICAL HELPLINE: +44 (0)1473 277400
www.cranefs.com
42 TECHNICAL HELPLINE: +44 (0)1473 277400
www.cranefs.com
CHECK VALVES
FM455 Wafer
PN25
Ductile Iron Wafer Check valve
Check valves permit flow in one direction only, and close automatically if
flow reverses. They are entirely automatic in operation,
depending upon pressure and velocity of flow within the pipeline to
perform their opening and closing functions.
The FM455 is a Double Door wafer pattern valve, spring loaded to assist
closing, and with an EPDM seat for quiet operation.
FM455
PART MATERIAL
Body Ductile Iron - BS EN 1561 EN-JL1030
Discs Stainless Steel SS316
Shaft Stainless Steel 10088-1 X10CrNil8-10
Stop Pin Stainless Steel 10088-1 X10CrNil8-10
Seat EPDM
Springs Stainless Steel 10088-1 X10CrNil8-10
Materials
Dimensions and Weights
SPECIFICATION:
Face to Face dimensions conform to BS EN 558-1. Suitable for fitting between flanges conforming to BS EN 1092-2 PN25
Suitable for mounting in horizontal and vertical pipelines.
When installed in vertical pipelines the flow must be in an upward direction.
This valve is suitable for use on group 2 liquids only as defined by the pressure equipment directive and 97/23/EC.
Temperature operating range: -10 to 120°C.
SIZE WEIGHT A B C D
(kg) (mm) (mm) (mm) (mm)
50 2.5 105 54 8 60
65 3.5 124 54 14 73
80 4.5 137 57 16 89
100 8.0 168 64 25 114
125 10.0 194 70 34 141
150 13.0 222 76 43 168
200 28.0 276 95 61 219
250 45.0 340 108 80 273
300 68.0 400 143 102 324
Dimensional Drawing
TEMPERATURE (°C) -10 to 120
PRESSURE (BAR) 25
Pressure/Temperature Ratings
Every effort has been made to ensure that the information contained in this publication is accurate at the time of publishing. Crane Ltd assumes no responsibility or liability for typographical errors or omissions or for
any misinterpretation of the information within the publication and reserves the right to change without notice.

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