MASCOT spring cylinder linear actuator is a powerful, high-performance pneumatic actuator, which provides positive throttling or on-off operation to pneumatic control valves. Uniquely designed compact sized cylinders actuators accept supply pressures up to 150 psi, making very high thrusts available in a relatively compact unit. The basic 4 sizes cater to almost 85% of a plant’s requirement hence reducing the inventory & cost of maintenance spares.
The MASCOT spring cylinder linear actuator is fully field reversible for air to open or air to close action without additional parts; a spring provides reliable fail-safe operation.
Air is supplied to both the sides of the piston by the positioner providing very stiff and precise movement along with very high frequency response.
|Salient Features||Inherent Advantages|
|High thrust cylinder||• Operating pressure of 150 psi (10.3 Bar) permitting substantially higher thrust capabilities than diaphragm actuators.
• Tighter valve shutoff
|High Frequency Response||• Double-acting configuration responds quickly to signal changes.|
|Lightweight & Compact||• Substantially lighter and more compact than comparable linear diaphragm actuators.
• Offers ease of maintenance.
|Wide choice||• Four basic actuator sizes 25, 50 and 100 & 200 can handle thrust requirements for over 85 percent of valve sizes in a plant.|
|Least number of parts||• 33% less parts than diaphragm actuators.
• Cost of wearing parts is 10% than compared to diaphragm actuators allowing low spare parts inventory and maintenance costs.
|Excellent Positioning Accuracy||• Powerful pneumatic stiffness allows a high pressure drop without plug slamming onto the seat due to air volume between the piston and the bottom of the cylinder.|
|Low Air Consumption||• Cylinder design uses less supply air than comparable diaphragm actuators.|
|Longer Stroke||• Longer strokes provide better process control. Size 25 spring cylinder linear actuators have a 11/2-inch (38 mm) stroke, in contrast to a 3/4-inch (19 mm) stroke on a comparable linear diaphragm actuator. Larger actuators have similar comparisons; stroke lengths are available up to 24 inches. This increases the rangability of MASCOT Control Valves.|
|Field Reversible||• Failure mode is easily reversed without additional parts. Reduces inventory costs.|
|No Pressure Regulator Required||• Cylinder actuators easily handle air supplies up to 150 psi (10.3 Bar) without a pressure regulator and can be operated with as little as 30 psi (2.1 Bar).|
|Simple Maintenance||• Periodic maintenance is easy to perform since the spring cylinder actuator only requires the removal of three parts to access all internal parts.|