Valve actuators
A valve actuator opens and closes the valve without manual force – pneumatically with control air or electrically via a motor. We currently stock 818 versions, all from Gemue, and keep expanding the range. A part-turn actuator rotates the valve through 90° and is mounted on butterfly valves and ball valves.
Part-turn or linear actuator
A part-turn actuator rotates the shaft through 90° and sits on butterfly valves and ball valves. A linear actuator moves the stem up and down and belongs to diaphragm and seat valves. We carry both: the part-turn actuators in Gemue part-turn actuators, the matching linear actuators as replacement actuators for diaphragm and seat valves.
Pneumatic or motorized
Pneumatic actuators work with 2.5 to 8 bar control air and switch fast. Double-acting versions need air in both directions; single-acting versions return to a defined fail-safe position via springs – important when the plant has to close or open safely on pressure loss. Motorized actuators need no compressed-air network and suit control tasks with long running times.
Mounting to ISO 5211
The interface to the valve is the flange to DIN EN ISO 5211 – F03 to F16 – together with the hub (square or star) and the across-flats dimension. If flange size, hub shape and across-flats match, the actuator can be mounted across manufacturers. Adapters, mounting plates and position feedback are in the valve accessories.
How to choose the right actuator
Four details lead to the right actuator: the operating mode (single or double acting), the torque the valve requires, the ISO 5211 flange with hub and across-flats, and the available control pressure. If these four match, the actuator fits. If you are unsure, tell us the valve type and nominal size – we will find the right version.
We ship all actuators worldwide, with the manufacturer’s original data and a data sheet for every version. The matching valves are under butterfly valves and ball valves.
Your Benefits With Us
- Worldwide shipping of all valves and measuring devices
- Large stock levels for many products – current lead time available on request
- Spare parts and service kits available
- Fast shipping via UPS (parcel) or freight forwarder (pallets), express delivery available on request
- Extensive hands-on application know-how
- Personal advice on selecting the right component
