Keystone Electric Actuators TVC Quarter-turn Electric Actuators
Quarter-turn electric actuators to operate ball- or butterfly valves in HVAC utility systems.
Features & Benefits:
- Permanent capacitor, reversible synchronous motor driving a multi-stage precision gear train.
- Lifetime lubrication with high performance grease.
- O-ring sealing and external position indicator with knob.
- Simple, yet rugged manual operating facility by means of a clutch knob or lever.
- Molded resin housings, weatherproof to IP65 with SS cover fasteners.
- Four adjustable cams on the main shaft to ensure perfect positioning and open/close indication.
- Internal PCB for power distribution and control, with four switches, SPDT for end-of-travel and position indication.
- Terminal bank inside the housing for ease of field wiring, including two cable glands Pg11.
- AC single phase and DC motors are standard.
- Top shaft with flats showing correct valve position.
- Mounting pattern to ISO 5211/DIN 3337.
- Direct mounting onto Keystone butterfly valves with ISO top works via standard stock item spacer plates.
- Compatible to CE regulations.
- Operation possible in any mounting position.
- Electric connections via cable glands in the basic housing (DIN connectors optional).
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