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