Pneumatic Diaphragm Actuator – VMV Limited

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Actuator

An actuator that operates valves and devices by receiving control signals, utilizing electric, pneumatic, or hydraulic drive systems.

Gas Over-oil Hydraulic Actuator

GPA Series

Pneumatic Diaphragm Actuator

MSD Series

Description

GVK MSD series Linear Motion Actuator is a compact and lightweight Multi-spring Type high-performance/high-power Diaphragm-actuator. This actuator controls the output and reaches the exact set position by balancing the force generated when the Diaphragm receives air pressure and the force of the compressed spring. This MSD series actuator combined with a Control Valve with Linear Motion Stem is suitable for modulating or on-off services.

Standard Specification

Type	Multi-Spring, Single-spring, Long Stroke
Size	220 … 650mm, Others
Stroke	5 … 120 mm
Function	Spring to Open (FO), Spring to Close (FC)
Air Supply	0.4 MPa G (4.0 bar G)
Air Connection	1/4 … 1/2-inch PT & NPT(F)
Performance	Hysteresis: With Positioner, Less Than 1.0% of Full Stroke Linearity: With Positioner, Less Than ±2.0% of Full Stroke
Ambient Temperature	Standard: -10℃ to +70℃ Ultra Low: -60℃ to +60℃ Low: -47℃ to +40℃ High: 0℃ to +100℃

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