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How do Pneumatic Indicators Work, and What are the Common Types?

A pneumatic indicator contains an electrical and pneumatically actuated visual indicator. These devices also include panel-mounted and in-line-mounted designs. On certain models, a multi-pin indicator is also present. All these parts, when put together, provide accurate and reliable monitoring of entire pneumatic control systems.

Various LED indicators allow users to get clear and real-time data. This information allows systems to run at peak performance. Indicators solenoid gasket and inset require a simple and quick installation directly on solenoid actuated valve (providing on status and troubleshooting indications).

Special applications require specialized indicators. For instance, an application that requires gauges or traditional threaded connectors requires indicators that can work with pressure up to 240 psi and 29.6 H.

The Most Commonly Used Pneumatic Indicators Include:

The OH-8 type of pneumatic indicator becomes actuated once 18 ps or 1.2 is reached. The indicator is actuated at that point, and then a colored sleeve protrudes into the transparent cap.

The visual indicator, type OHJ-PK is used to monitor system conditions. It is triggered once 1 bar or 15 psi is present.

The OH-10 has a pin that extends when reaching 1.4 bars. Unlike other pneumatic indicators, this variant only extends to a length of 3mm.

Type OH-22 (Green, Red, Yellow, Blue)  is actuated when 1.5 bars of pressure are met (or 22 psi). This indicator is used for both monitoring and indicating issues within operating conditions.

For more information on how pneumatic indicators work, or which is the best type for you, you should not hesitate to call our talented team.

Related Reading about Pneumatic Control Systems

If you are looking for Pneumatic Controls, Pneumatic Valves then look no further than Ellis/Kuhnke Controls.