DM931 - Variable Orifice Double Regulating Valve (DRV) - Ductile Iron

Description

DM931 - DN65 to DN300

Variable Orifice Double Regulating Valve (DRV) - Ductile Iron

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 openings of the valve in accordance with BS 7350