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Products / Mechanical Actuators
Bevel & Worm Gear Actuators for Manual Valve Operation
Heavy-duty manual gearboxes for multi-turn and quarter-turn valve automation. MAB bevel gear series for gate and globe valves, MAW worm gear series for ball, butterfly and plug valves — ISO 5210/5211 compliant with full marine and offshore protection options.
Valvenok supplies a complete range of manual mechanical actuators — bevel gear and worm gear — engineered for reliable multi-turn and quarter-turn valve operation in the most demanding industrial environments. From high-thrust bevel gearboxes for gate and globe valves to self-locking worm gear actuators for ball, butterfly and plug valves — all ISO 5210/5211 compliant with full marine and offshore protection options.
MAB Series
MAB
Heavy-duty bevel gear actuators for multi-turn gate, globe and linear valve operation. Torque up to 18,000 Nm and thrust up to 2,500 kN. Ductile iron housing, IP68 protection and marine coating options for critical valve stations in Oil & Gas and Power Generation.
250 – 18,000 Nm
75 – 2,500 kN Thrust
IP55 / IP65 / IP67M / IP68
-20°C to +80°C
ISO 5210 Mount
Marine Coating Option
MAW Series
MAW
Self-locking worm gear actuators for quarter-turn ball, butterfly and plug valve operation. Torque from 100–32,000 Nm, ±5° fine stroke adjustment, ISO 5211 direct mount and MOV compatible for electrical actuator upgrade without machining.
100 – 32,000 Nm
IP54 / IP55 / IP65 / IP67M
-20°C to +85°C
ISO 5211 Mount
Self-Locking Worm Gear
±5° Stroke Adjustment
ITG Series
ITG
Precision-engineered quarter-turn gear actuators for ball, butterfly and plug valves. Torque from 60–28,000 Nm, self-locking design, declutchable manual override, ISO 5211/5210 mounting and full actuator integration compatibility for pneumatic, hydraulic and electric automation.
60 – 28,000 Nm
IP54 / IP55 / IP65 / IP67M
-20°C to +85°C
ISO 5211 / ISO 5210 Mount
Declutchable Override
±5° Stroke Adjustment
32,000 Nm
Max Torque
IP68
Ingress Protection
2,500 kN
Max Thrust
ISO 5210/5211
Mounting Standard
Marine Ready
Offshore Coating Options