General Description
Pneumatic rack and pinion actuators QUIFER are in the market for more than 40 years. These actuators are popular for their high resistance and durability and, in consequence, the reduction of the maintenance cost in the production lines. For that reason, our actuators are used in the more exigent markets and environments like oil and gas, offshore platforms or vessels.
The linking surfaces of the actuators are designed according ISO 5211 and VDI/VDE 3845. Design of the actuator is constructed according ISO9001:2008, IEC 61508:2010, LOM 05ATEX6032and European Pressure Equipments Directive 97/23/EC 3.10
Standard Actuator Scope
| Double Acting | Spring Return | |
| Torques: | 5000 Nm | 1800 Nm |
| Working pressure: | 1 to 10 bar | 3 to 10 bar |
| Air supply: | Air or non corrosive gas | |
| Working temperature: | From -20 to +80ºC | |
| Rotation: | 90 degrees Anticlockwise in opening | |
| Adjustments: | +/- 2,5ºC to open +/-2,5ºC to close | |
| Lubrication: | Actuators lubricated for life | |
Technical Data
Linking surfaces according ISO 5211 and VDI/VDE 3845
Air connections according VDI/VDE 3845
Drive shaft with square ISO 5211
All components have high resistance to corrosion
All models have a double opening and closing regulation from the outside
Multiple combination springs allow a wide range of torques for one model
All springs have a preloader, increasing safety
All models are easily convertible from spring return to double acting and vice versa
Advantages
Inner cylinder has been completely honey treated to obtain 0,3 – 0,4 mic. rugosity
Shaft and pistons are completely machined
Body and shaft completely hard anodized
Shaft has an anti-ejection retaining ring
Double sealing at the top and bottom of the shaft
Large PTFE sliding guide in the pistons
Large thickness of the walls of actuator to increase durability
Electrolytic nickel to the shaft
Travel stop of the actuators located in the axis of the actuator
Options
Low temperature versions up to -65ºC
High temperature up to +180ºC
Nickel plated actuators
Stainless Steel drive shaft
Fast closing time actuators
Actuators driven with Natural Gas, Sour Gas, Oxygen, etc, etc…
Adjustable travel stops from 0º to 90º
180ºC rack and pinion actuators
180º 3 phase actuators
90º RPC actuators
Special coating for high corrosive environments
O-rings and spring repair kits
Complete package with control valves, solenoid valves, air tanks and accessories