Goyen Mecair

Hazardous Pilot-Pex-PXA

Pentair's hazardous pilot PEX/PXA is certified to be dust and gas explosion proof, providing you with the total assurance you need when piloting every valve of your filter cleaning system safely and reliably even in extremely hazardous locations.


Hazardous Pilot PXA


  • Safe and reliable piloting in hazardous locations
  • Designed for compressed air manifold pressures from 0.5 to 7.5 bar
  • Explosion-proof: Full protection against flame and dust ignition
  • Certified: II 2 G Ex d IIC T4 and II 2 D Ex tD A21 
  • Waterproof: IP67 T135°C, IP67
  • Strong materials, long lifetime: anodized aluminum or stainless steel


Pilot valves control a limited-flow control feed to a piloted valve which typically controls a high pressure or high flow feed. Often used in critical applications such as safety controls, pilot valves need protection against dirt, moist, tools and other outside influences that could have a negative impact on availability and reliability.

Our Hazardous Pilot valves have pilot bodies and covers made from pressure die cast aluminium which is anodized, or from stainless steel. They are designed to operate with compressed air manifold pressures ranging from 0.5 bar to 7.5 bar and, unless stated otherwise, may be installed in any orientation.


Pentair’s Goyen and Mecair two-way (normally closed) hazardous pilot explosion-proof models PXA and PEX were specifically designed to be installed on type VEM diaphragm valves, and for those applications where a spark may cause ignitions in the surrounding atmosphere.

The PEX and PXA series have been designed and approved according to the ATEX Directive 94/9/CE and classified as II 2G Ex d IIC T4 / II 2D Ex tD A21 IP67, meaning that they are operable at temperatures up to 135°C and water resistant. This ensures that any spark occurring at the solenoid will remain within the pilot valve enclosure, with no possibility of spreading to the external environment.

Pentair’s Goyen and Mecair hazardous pilots are specifically designed for the reverse pulse jet filter cleaning of dust collectors and baghouses in locations with a high risk of dust and gas explosions.

These include all variations of bag filters, cartridge filters, envelope filters, ceramic filters and sintered metal fiber filters. Their tough and reliable construction makes them perfectly suited for both noxious and environmental dust collection applications in a wide range of industries, including:
• Cement dust collection
• Mining dust collection
• Silo/bulk materials handling dust collection
• Industrial dust collection
• Power industry: protection of boilers and gas turbine intake filter systems

All Goyen and Mecair products are backed by an experienced and dedicated team of engineers providing levels of technical support unmatched in the industry.


All Pentair products are backed by an experienced team of engineers able to provide unmatched levels of customer support with technical services and practical tools. The award-winning (ABA100) GOCO is a diagnostic and system modelling service for your reverse pulse filter cleaning systems. As it can optimize system parameters at the touch of a button, GOCO takes all guesswork out of engineering filter cleaning systems. It also ensures optimum performance and extends the lifespan of your filters. Simply contact us to get started with GOCO.



• ATEX: II 2 G Ex d IIC T4 - II 2 D Ex tD A21 IP67 T135°C
• IP rating: IP67 

Product type overview

The overview shows different product types belonging to the product family of Hazardous Pilots.


Product type