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Series 641/23
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SERIES 641/23 RECOIL HIGH PERFORMANCE NON SLAM CHECK VALVE, PN25
The Series 641/23 is a fast acting, multi-door, recoil check valve. Designed for use in systems where high velocities and fast returns of flow are evident. Suitable for use with potable water, raw water and sewage, to a maximum temperature of +70°C.
Features
• Metal seated valve with gunmetal body seats and gunmetal faced doors.
• Non slam operation.
• No additional damping required.
• By-pass bosses as standard.
• Epoxy coating.
Options
• By-pass.
• Limit/proximity sensors.
• Alternative trim.
BODY/COVER/DOOR Ductile Iron - BS EN 1563
HINGE PIN
Stainless Steel - BS EN 10088
Grade 1.4305
FASTENERS Zinc Plated Mild Steel
SEAT Gunmetal - BS EN 1982:1999 CC491K
COATING (internally and externally) Epoxy (250 microns) - WRAS Approved to BS 6920
FLANGES BS EN 1092-2, PN25
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British StandardMultiple Door Recoil Check Valve PN25
| DN (mm)
| PN (bar)
| Weight (kg)
| Stock Group
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| 641-0600-23700000 | 600
| 25
| 1950
| C
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| 641-0700-23700000 | 700 | 25
| 2500
| C
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| 641-0800-23700000 | 800 | 25
| 2700
| C
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| 641-0900-23700000 | 900 | 25
| 3600
| C
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