Pressure Switches typically provide 100 million cycles.

Press Release Summary:

Utilized in pneumatic and hydraulic environments, Herion 33D Series is available in ranges from vacuum to 10,000 psi and is fully programmable for NO, NC, or window mode operation. Switching status is indicated by backlit real-time LED display and features selectable pressure units for global use. Designed with stainless steel wetted parts, switches include programmable delays, LED status indication, tamper protection, and IP65-rated M12 connector.

Original Press Release:

Norgren's 33D Pressure Switches Offers Highly Reliable Switching Combined with Long Life

Littleton, Colorado, USA - July 2006. With many years of experience in the field of pressure switch technology Norgren offers the engineer a compact and robust model with its solid state Herion 33D series. Developed to deliver highly reliable switching combined with long life, typically 100 million cycles, the 33D is ideal for use in applications where space is at a premium and the operating environment calls for solutions that are durable.

The series can be utilized in both pneumatic and hydraulic environments. It is available in ranges from vacuum to 10,000 psi and is fully programmable for NO, NC or window mode operation.

Offering a cost effective solution for industrial applications the switching status of the 33D series is indicated by a back-lit real time LED display for high visibility and also features selectable pressure units for global use. The switch itself features programmable delays, LED status indication, tamper protection and an industry standard IP 65 rated M12 connector. All stainless steel wetted parts provide compatibility with a wide variety of fluids. Further information on this new range can be found at

Norgren is one of the world leaders in the supply of motion and fluid control technologies for a wide variety of different industry sectors. Norgren is committed to optimising technological performance for its customers' advantage. All of Norgren's systems are engineered for flexibility based on strong product fundamentals. Application specific solutions frequently involve integrated or modular combinations of actuator, control valve and air preparation technologies.

With established manufacturing facilities in USA, Germany, UK, Switzerland, and Spain and with newer facilities in Mexico and the Czech Republic Norgren has the global manufacturing and support capabilities to be able to cope with the most demanding international projects. With support through an established sales and service network in 75 countries Norgren has the global reach and capability to ensure continuity of supply and local support where it is needed for customers involved in export markets or multi site operations.

With three global technical centres in USA, Germany and the UK supported by 270 engineers Norgren is a subsidiary of the £1.6bn IMI PLC.

In the US, Norgren has a unique network of almost 100 distribution outlets operated by independent distributors.

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