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PZM Diaphragm Pneumatic Actuator Manufacturer

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PZM is the most common diaphragm actuator for our globe type control valves, and it can be assembly Siemens smart positioner, ABB digital positioner, South Korea positioner etc.

multi spring diaphragm actuator — PZM-4/5/6/7/8 Multi-Spring Diaphragm Actuator

The multi-spring membrane pneumatic actuators of P/R type are applied for control operation
of control valves, and other positioning elements in industrial automatic systems. There are
three following design options of the actuator:

APPLICATION AREA

Direct action (air – advances the steam)
Reverse action (air – retracts the steam)
Direct action, handwheel
Reverse action, handwhee

FEATURES

Completely reversible action, option to change spring range w/o extra parts.
Rigid structure of cast yoke.
Wide range of the available forces.
Linear relationship between rod displacement and control pressure as a result of using membranes with constant active area.
Various ranges of spring pressures due to changeability of spring number and /or dislocation of distance fencers.
Capability of the actuator to incorporate side-mounted handwheel, pneumatic or electro-pneumatic positioners, limit switches, air sets, three-way pneumatic solenoid valves, lockup valves, position transducers.
High strength of diaphragms, springs and packings.
Small size and weight.

Direct-acting（ PZMA）

Up diaphragm castings
Diaphragm
Diaphragm plate
Spring
Down diaphragm castings
Actuator stem
Yoke
Adjust nut
Travel indicator

Reverse-acting （ PZMB）

Up diaphragm castings
Diaphragm
Diaphragm plate
Spring
Down diaphragm castings
Actuator stem
Yoke
Adjust nut
Travel indicator

TECHNICAL PARAMETERS

Dimension

If you need PZM diaphragm actuators, Please just feel free to contact us. Our sales representative will contact you within 1 hour.

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Meet Our Team and Why You Choose THINKTANK

Will Don

After earning my bachelor's degree in mechanical engineering from Zhejiang Normal University in 2008, l was fortunate enough to begin my career with Siemens, Fisher, and YTC, focusing on control valve accessories. Over the past dozen years, l've poured my heart and energy into understanding technology and fluid solutions for control valves.
Now, as the marketing director for THINKTANK, a trusted branch of the Taiwan STONE valve group, I can't help butf eel proud of how far we've come. Our knowledge isn't just reaching professionals like engineer and valve distributors; it's also inspiring the next generation of automation college students.
l genuinely hope you're enjoying our articles and finding them helpful.Your thoughts, questions, and feedback mean the world to me, so please don't hesitate to reach out to marketing[at]cncontrolvalve.com. Whether you're a seasoned expert or just curious about the field, I'm here to connect, share, and learn together.

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I am the author of this article, and also the CEO and marketing director of THINKTANK, with 15 years of experience in the industrial valve industry. If you have any questions, you can contact me at any time.

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