DM931 / DA931 Variable Orifice Double Regulating Valves
Verified by manufacturer 14 days ago
DN65
DN65
A variable orifice double regulating valve.
Application
Suitable for injection or other circuits requiring a double
regulating valve for system balancing.
Description
A variable orifice double regulating valve.
Features and 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 openings of the valve in accordance with BS 7350.
General information
Color | Black |
Material | Cast iron |
Uniclass | |
CAWS | S90/650 Flow reducing/ servicing valves S90/650 Flow-reducing/ servicing valves |
Specification data - Double regulating valves
Standard | To BS 7350:1990, BS EN 1092-2 and BS EN 1563. |
Arrangement | Globe.Guidance for specification option: Y-pattern. |
Material | Ductile Iron - BS EN 1563 GJS-450-10, Non-asbestos, EPDM coated cast iron, Bronze, Stainless steel type 410, Brass and Cast iron.Guidance for specification option: Body, Bonnet: Ductile iron; Bonnet gasket, Packing: Non-asbestos; Disc (All sizes): EPDM coated cast iron; Disc bush, Seat ring: Bronze; Stem: Stainless steel; Gland (65 to 150mm), Gland nut: Brass; Gland (200 to 300mm): Cast iron. |
Connections | Flanged to BS EN 1092-2 for cast iron.Manufacturer guidanceDM931 ends are flanged to BS EN 1092-2 (formerly BS 4504) and DA931 ends are flanged to ANSI B16.1 Class 125. |
Inlets/outlets diameter | 65 mm. |
Dimensions | 290 x 262 mm. Manufacturer guidanceRefer to technical datasheet for detailed dimensions. |
Weight | 15.8 kg. |
PressureRange | Temperature: -10 to +120°C: 16 bar. |
Flow capacity | 85 Kv. Guidance for specification option: Headloss (K): 4.9. Manufacturer guidanceFlow coefficient Kv. |
Sustainability data
Material | Cast iron |
Recyclability | Recyclable Guidance for specification option: Recycle locally, consult manufacturer for details. |
Expected Life | 20 year |