Features
●Application Versatility—Direct Action & Reverse Action in six sizes are available for an extensive variety of applications. Spring ranges, stroke limits, and manual overrides are available for nearly any control valve application.
●Excellent Linearity Between Loading Pressure and Stroke — A molded diaphragm travels in a deep diaphragm casing, the effective area of the diaphragm changes very small, which provides excellent linearity.
●High Thrust Capability—The molded diaphragm and cold stamping case allows high pressure supply and maximum thrust for given diaphragm size.
●Long Service Life—cold punched sheet metal casing cap and ductile iron construction provides increased stability and protection from corrosion and deformation should over-pressurization occur.
●Cold Service Application—Enhanced product specification for all sizes of HPD series diaphragm actuators allow performance to -40℃ if required.
●Positive Connections—A split block stem connection provides a solid transfer of motion while allowing easy mounting. The absence of linkages helps to avoid lost motions and inaccurate valve positioning.
●Compact&Light—With the multiple springs and a high air supply pressure, HPD series are much more compact and light as compared with conventional actuators.