DN100__DN125__DN150__DN20...DN80 - DN100...DN800

The Clorius G2FR (reverse acting) 2-way control valve is mainly intended to control cooling systems. The G2FR control valve is used in conjunction with temperature- or pressure differential regulators. As the reverse acting valve is held in a closed position using a built-in spring, the max. differential pressure, ΔpL, against which a valve can close depends on the spring, and when opening the valve, the actuator has to overcome the spring force. See datasheet to find the max. allowable values of ΔpL as well as the max. allowable inlet pressures for opening the valves, p1max for various actuator forces. Design The valve components, spindle, seats and cone, are made of stainless steel. The valve body is made of nodular cast iron EN-GJS-400-15 with flanges drilled according to EN 1092-2. The connection thread for the actuator is G1B ISO 228. The valves are double-seated and designed for tight closure. The leakage rate is less than 0.5% of the full flow (according to VDI/VDE 2174). Function Reverse Acting Without an actuator being connected, the valve is held in a closed position using a spring. With pressure on the spindle, the valve opens. In connection with our actuators, the valves act as œcooling valves, i.e. they open at rising temperatures. The linear characteristic will not cease until the flow has dropped below 4% of the full flow.

The Clorius S3FM-T is a three-way control valve with a slide for quarter-turn operation, designed for most industrial fluids and aggressive media. The valve body and the valve slide are made of stainless steel AISI316. The valve flanges are drilled according to EN 1092-2. Optional: ANSI, JIS and Grooved Victaulic Joints. Valves can also be supplied in AB-Left configuration and AB-Middle. The slide is firmly connected with the actuator spindle. When the slide is in the one outer position by turning the spindle, connection A-AB is fully open and connection B-AB is fully closed. In the other outer position, connection A-AB is fully closed, and connection B-AB is fully open. In the intermediate positions, the opening degrees change proportionally. The valve has a minimum gap between the body and slide. To minimize the leakage, an O-ring is mounted in a groove on the slide.