Glenfield - Water Engineers to the World

SERIES 641/11 SINGLE DOOR RECOIL CHECK VALVE, PN16
The Series 641/11 is a single door, recoil, check valve. Designed for high velocity systems with rapid return flow, 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.
• Fusion bonded epoxy coating, (up to DN300).
• Non slam operation.
• No additional damping required.
• By-pass bosses.
• Minimum head loss.

Options

• Size range DN100-1200mm. (For sizes DN600-1200mm refer to Series 641/21).
• By-pass.
• Limit/proximity sensors.
• Alternative trims.
• PN25 version.

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) -
WIS 4-52-01 Class B (DN100-300)
WRAS Approved to BS 6920 (DN350-500)

FLANGES
BS EN 1092-2, PN16