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Rack and pinion actuators often offer the most economical solution for quarter-turn valves that have a fairly constant torque requirement throughout the stroke. RH (hydraulic) actuators are available in five body sizes to produce torque output up to 3,400 Nm (30,000 lbf.in) at operating pressures up to 250 bar (3,600 psi). They are available in either double-acting or spring-return configurations.
- Heavy-duty cast iron bodies
- Electroless nickel-plated cylinders for corrosion resistance
- Nickel-plated, anti-blowout pinion
- Valve mounting dimensions per ISO 5211 DIN 3337
- Complies with EN60529 (1991) + (A1:2000) for IP67M
- Certified suitable for use in SIL3 as a single device in accordance with IEC 61508
- Actuators certified to ATEX 2014/34/EU and PED 97/23/EC
The Skilmatic range of actuators offer a unique and reliable solution for electric failsafe and modulating control for both quarter-turn and linear valves and dampers.
The Heavy Duty AT-HD Series is the natural evolution of the Air Torque products range. Thanks to the new AT-HD line we can provide to the market actuators with high out-put torques and we can fully supply the Oil & Gas market.
as market leader, the innovational spirit, the well-known reliability in actuators design and the high quality manufacturing level. The new technical features developed and incorporated in this product line allow to have the best product versatility for an easier valve automation. The design in fully compliance with all the international standards is also covered by international patents. The 4th Generation Upgrade series offers the widest and most complete actuator range with huge options availability. The 4th Generation Upgrade line counts a combination of: - 17 different model sizes both in double acting and spring return - 6 different protection levels - 3 different working temperature executions (from -55°C/-67°F up to +150°C/+302°F) - Multiple choice of ISO flange and drive shaft connection for each actuator size.The -40°C lower temperature construction is offered as standard, as well as the nuts&bolts in stainless steel as a base. With output torque up to 10.000Nm, Air Torque is the only manufacturer in the world offering the biggest rack and pinion actuator in aluminium.