actuator
MSD-Multi Spring Diaphragm Actuators
Description:
The MSD Type actuator is used in a wide range of globe control valve applications
MSD series is a pneumatic spring diaphragm actuator. The multiple spring design configuration provides standard spring ranges are achieved by varying spring quantity and placement. A molded rolling diaphragm and deep cases reduce area change, resulting in a linear relationship between travel and air pressure
Application:
Both Direct and Reverse Action.
Low to high pressure drop applications; Mechanical spring fail-safe operation; Manual override to mechanically position valve.
Size
S10 through S40
Maximum supply
Up to 60 Psi o 4.1 Bar
Travel Range
From 0.8” up to 4”
SSD-Single Spring Diaphragm Actuators
Description:
The SSD Series actuator is designed to provide high performance, reliability and long service life.
Provides maximum strength and rigidity.
The AMP SSD series spring-diaphragm actuator is a simple, powerful, mechanical device.
The nominal range of a spring-diaphragm actuator is the air pressure range in pounds per square inch (psi) for rated stroke under no load. Common ranges are 3–15 psi and 6–30 psi.
Application:
The SSD Series actuator is designed to provide high performance, reliability and long service life.
Size
S15 through S45
Maximum supply
Up to 60 Psi o 4.1 Bar
Travel Range
From 0.8” up to 4”
SSP-Single Spring Piston Actuators
Description:
AMP SSP series pneumatic cylinder actuator provides high thrust and dynamic stiffness to meet a variety of throttling control and on/off applications. Some of the key cylinder actuator features include:
Heavy internal guiding and support provides proper alignment of the dynamic components, delivering a rugged construction suited for the most demanding valve actuation requirements.
. Heavy guiding of the actuator stem results in excellent mechanical alignment of the key components, thus minimizing dynamic seal and sliding surface wear. This also helps to reduce overall operating friction, which enhances throttling control performance.
Fail action mode for the double-acting configuration without springs can be provided using an integral volume tank design. There is also an optional manual override available for all actuator sizes. Optional handwheel/hand jack assemblies provide manual override in case of air failure.
Modular construction of the cylinder and spring cartridge design provides an assembly that is both easy and safe to maintain. The actuator piston is located in a separate cylinder chamber, which allows for simple dynamic seal replacement.
Application:
Larger valve sizes and other applications requiring longer strokes or travel; High pressure drop and tight shutoff applications
Standard construction options include double-acting without springs, as well as heavy mechanical spring-return for both air-to-extend and air-to-retract operation. Air volume in the cylinder is reduced in each design, providing high dynamic stiffness and improving speed of response.
Size:
S13 through S63
12” to 23”
Maximum supply
Up to 60 Psi o 4.1 Bar
Travel Range
From 2 1/2” up to 12”