W&O, Cast Steel GP240GH N (1.0619) - Valves

The Clorius H1FBN 2-way control valve is designed for regulating hot water, steam and hot oil systems. The H1FBBN balanced valve is used in installations where the system pressure necessitates a closing force greater than available in the actuator programme for a standard single-seated valve, and where the leakage rate for a double-seated valve is unacceptable. The valves are used in conjunction with Clorius temperature- or pressure differential regulators for controlling industrial processes, district or central heating plants or marine installations. Design The valve components – spindle, seat, cone – are made of stainless steel. The valve body is made of cast steel GP240GH (GS-C25). The thread for the actuator connection is G1B ISO 228. The valves are single-seated. The leakage rate is less than 0.05% of the full flow (according to VDI/VDE 2174). Function Without an actuator being connected, the valve is held in an open position using a spring. With force on the spindle, the valve will close. In connection with our thermostats, pneumatic or electric actuators, the valves will close at rising temperatures. For cooling circuits, the valve can be used in conjunction with a reverse acting electric actuator. Alternatively, a reverse acting double-seated valve can be used with our self-acting thermostats. The quadratic characteristic will not cease until the flow has dropped below 4% of the full flow.