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Leading UK supplier of valve actuators across all technologies — pneumatic, electric, hydraulic and mechanical — for demanding industrial environments globally.
Request Actuator SpecsATEX & IECEx Compliant
24h Fast Dispatch
Pneumatic · Electric · Hydraulic · Mechanical
ISO 5211 Mounting Standard
ATEX Zone 1 & 2 Certified
SIL2 / SIL3 Capable
ATEX & IECEx Compliant
24h Fast Dispatch
Pneumatic · Electric · Hydraulic · Mechanical
ISO 5211 Mounting Standard
ATEX Zone 1 & 2 Certified
SIL2 / SIL3 Capable
Valvenok supplies a comprehensive range of industrial, marine and instrumentation valves engineered for demanding service conditions across oil & gas, petrochemical, power generation and marine industries. From API-rated process isolation valves to class society approved marine valves and precision SS316 instrumentation valves — every product built for leak-tight, reliable performance.
Pneumatic Actuators
PA
A full range of pneumatic rotary and linear actuators engineered for reliable quarter-turn and linear valve control. Rack-and-pinion spring return for fail-safe process control, scotch yoke for high-torque heavy-duty automation — all with ISO 5211 direct-mount.
Rack & Pinion
Scotch Yoke
Spring Return
ISO 5211
ATEX Certified
Double Acting
Electric Actuators
EA
Precision electric actuators for quarter-turn and multi-turn valve automation. Intelligent torque control, modulating and on-off service, with integrated limit switches and positioners.
Quarter-Turn
Multi-Turn
Modulating
On-Off Service
Limit Switches
Positioners
Hydraulic Actuators
HA
High-force hydraulic actuators built for subsea, offshore and pipeline applications where extreme torque and fail-safe operation are non-negotiable. Scotch yoke and rack-and-pinion configurations available.
Scotch Yoke
Rack & Pinion
Spring Return
Hydraulic Override
Subsea Ready
Fail-Safe
Mechanical Actuators
MA
Manual gearboxes and mechanical actuators for quarter-turn and multi-turn valves. Worm gear, bevel gear, and spur gear designs provide reliable manual override and standalone valve operation.
Worm Gear
Bevel Gear
Spur Gear
Quarter-Turn
Multi-Turn
Manual Override
Limit Switch Boxes
LS
Valve position indicators that detect open/closed valve status and transmit it to the control system. Built with a rugged aluminium housing, IECEx and KCs explosion-proof certified, with proximity and mechanical switch options across weatherproof and Ex-rated variants.
IP67 / IP68
IECEx Certified
KCs Explosion Proof
Mechanical & Proximity
3-Way Indicator
ALDC12 / SUS316L Body