Glenfield - Water Engineers to the World

SERIES 851/20 CLUSTER AIR VALVES, PN16
The Series 851/20 Cluster Air Relief Valve Arrangement is for use with potable water and is suitable for large volume air outflow and inflow as well as releasing air during pressurized operation.

Double, triple and quadruple cluster arrangements are used for larger pipelines as follows:

Double Cluster for pipeline diameters up to 1400mm
Triple Cluster for pipeline diameters up to 1800mm
Quadruple Cluster for pipeline diameters up to 2200mm

Features

• Aerokinetic design ensuring valve does not seal prematurely
• Full bore outlet allowing optimum discharge
• Low sealing pressure
• ABS internals

BODY/COVER
Ductile Iron - BS EN 1563

INTERNALS
ABS Plastic

FASTENERS
Stailess Steel Gr A4

COATING (internally and externally)
Epoxy (300 microns) -
WIS 4-52-01 Class B

CONNECTION
BS EN 1092-2, PN16

C

2200/250