Balancing Valve

Features & Benefits

• These are Y-Pattern globe valves supplied with two pressure test
points P84 to provide flow measurement, regulation and isolation
• The Double Regulating feature allows the valve to be used for
isolation and to be reopened to its pre-set position to maintain
required flow rate
• Primarily used in injection or other circuits requiring a double
regulating valve for system balancing
• Accuracy of flow measurement is ±10% at the full open position
of the valve
• Some reduction in accuracy occurs at partial accordance with BS 7350

Materials

PART MATERIAL
Body Ductile Iron – BS EN 1563 GJS-450-10
Bonnet Ductile Iron – BS EN 1563 GJS-450-10
Bonnet Gasket Non-asbestos
Disc (All sizes) EPDM
Coated Cast Iron
Disc Bush Bronze
Stem 410 SS
Gland (65 to 150mm) Brass
Gland (200 to 300mm) Cast Iron
Gland Nut Brass
Packing Non-asbestos
Seat Ring Bronze

SPECIFICATION:

Conform to requirements of BS 7350: 1990
END CONNECTIONS: DM931 Ends are flanged to BS EN 1092-2 (formerly BS 4504) and DA931 Ends are flanged to ANSI B16.1 Class 125