FRYQ is suitable for driving lift rod valves, such as gate valves, globe valves, throttle valves, diaphragm valves and other multi-turn valves;
FRYQ+BW and FRYT are suitable for driving part-turn (usually opening and closing within 90° range) valves, such as butterfly valves, ball valves, on-off-type dampers, etc.
FRYQ+VE is suitable for various control valves or dampers involved in regulation.
