Control Valves And Actuators For Central HVAC Plants

Control valves and actuators for central HVAC plants Large- and short-stroke valves with electromotoric actuators This is the right combination of valves and actuators for all types of small and medium-size HVAC plants,offering straightforward planning, installation and commissioning. The benefits 1. Excellent price/performance ratio for all types of HVAC standard applications 2. Proven in their millions 3. Very versatile – covering a broad application area 4. Excellent price / performance ratio The features at a glance 1. Single seat, metallic seating 2. Long life expectancy 3. Low noise level 4. Leakage rate < 0.02% kVS 5. 3-port valves can be used as mixing or diverting valves Large-stroke valves with electrohydraulic actuators For applications where great forces and safety are of prime importance, large-stroke valves in connection with electrohydraulic actuators are the number one choice. On district heating applications with their demanding requirements and, generally, on large plants, electrohydraulic actuators are unmatched. The benefits 1. Powerful – for large volumetric flows and great differential pressures 2. Safe and reliable – even under extreme operating conditions 3. Economical – robust and long service life The features at a glance 1. Positioning times between 30 and 120 s 2. Positioning forces of 2,800 N for closing pressures up to 4,000 kPa 3. For safety applications with spring return times below 8 s 4. Practically wear-free and extremely long service life 5. Metallic sealing for temperatures up to 220 °C – thermo oil up to 350 °C 6. Safe against dirt and low noise level thanks to optimized plug design 7. Leakage rate < 0.02% kVS 8. 3-port valves can be used as mixing or diverting valves 9. Threaded and flanged valves up to PN 40 and DN 150 10. kVS up to 300 m3/h 11. Differential pressures up to 1,600 kPa Threaded and flanged slipper valves with electromotoric actuators Motorized slipper valves for basic applications in smaller heating systems. 3-and 4-port slipper valves are ideally suited for small, easy-to-control heating systems with small differential pressures. The benefits 1. Smooth operation – long service life 2. Compatible – 3-position actuator for all needs 3. Time-saving – directly mounted actuators for easy commissioning 4. Representing affordably price solution The features at a glance 1. 3-port and 4-port slipper valves, internally threaded, externally threaded or flanged connections in nominal sizes DN 20 through DN 150 2. Electromotoric rotary actuators operating on AC 230 V or AC 24 V, 3-position signal Butterfly valves with electromotoric actuators For shutoff and changeover functions in closed or open circuits. The butterfly valves cover a wide application area. The VKF46 line features air bubble-tight shutoff. For standard applications in closed circuits, the VKF41 line offers affordably priced solutions. The benefits 1. Smooth operation – long service life 2. Compatible – 3-position actuator for all needs 3. Time-saving – directly mounted actuators for easy commissioning The features at a glance 1. Butterfly valves from DN 40 through DN 600 2. Directly mounted actuators can be combined to deliver torques up to 1,200 Nm 3. Electromotoric rotary actuators operating on AC 230 V or AC 24 V, 3-position signal 4. kVS up to 29,300 m3/h 5. Closing pressure up to 1,600 kPa