Enclosures for Hazardous Locations

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HEWE's enclosures for hazardous locations offer reliable protection for the pilot valves of your filter cleaning system in high-risk environments. The HEWE enclosures are dust and gas explosion proof and will operate safely even in the most extreme conditions.

Safety in hazardous locations: Explosion, flame and dust ignition proof

Pressure die cast cover, pilot bodies, and enclosures

Wide operating temperature range (up to -52°C (-61°F) to +82°C (179°F) depending on the product and certification, see literature for more details)

Available with anti-condensation heater and thermostat for cold climates

Up to 12 solenoid pilots in optimized arrangement for cleaning purposes 

Compressed air manifold pressures from 30 kPa (5psi) to 860 kPa (125psi)

IP66 rating enclosure effectively sealing all types of dust and water ingress. 

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, liquid, tools and other outside influences that could have a negative impact on availability and reliability. 

HEWE’s enclosures for hazardous locations have pilot bodies, covers and enclosures manufactured from pressure die cast aluminium. They are designed to operate with compressed air manifold pressures ranging from 30 kPa (5psi]) to 860 kPa (125psi). 

HEWE’s pilot valves may generally be installed in multiple orientations, although it is preferable to mount the solenoid above the valve to minimize the ingress of dirt and foreign matter into the ferrule tube.  They are able to operate within a wide temperature range, depending on the certification. For reliable operation, ensure the supply voltage is no more than 15 percent above or below the rated solenoid volt

HEWE enclosures for hazardous locations 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 HEWE products are backed by an experienced and dedicated team of engineers providing levels of technical support unmatched in the industry.

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

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The HEWE's enclosures for non-hazardous locations offer reliable protection for your pilot valves and remote actuators. The HEWE enclosures were specifically designed for convenient piloting of filter cleaning system valves.

• Reliable pilot valve housings for non-hazardous locations
• Pressure die cast covers, pilot bodies, and enclosures 
• Operational temperature range from -40°C (-40°F) to 82°C (179.6°F)
• Available with anti-condensation heater  
• Up to 12 solenoid pilots in optimized arrangement for cleaning purposes 
• Compressed air manifold pressures from 30 kPa (5psi) to 860 kPa (125psi)
• IP65 rating ensures effective enclosure sealing against dirt and moisture

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. 

HEWE’s enclosures for non-hazardous locations have pilot bodies, covers and enclosures manufactured from pressure die cast aluminium. They are designed to operate with compressed air manifold pressures ranging from 30 kPa (5psi]) to 860 kPa (125psi).

HEWE’s pilot valves may generally be installed in any orientation, although it is preferable to mount the solenoid above the valve to minimize the ingress of dirt and foreign matter into the ferrule tube. They are able to operate within a wide temperature range from -40 °C (-40°F) to 82°C (179.6°F). For reliable operation, ensure the supply voltage is no more than 15 percent above or below the rated solenoid voltage.

HEWE’s enclosures for non-hazardous locations are specifically designed for the reverse pulse jet filter cleaning of dust collectors and baghouses. 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

 The overview shows different product types belonging to the product family of Enclosures for Non-Hazardous Locations. 

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To actuate the valves in your dust collector filter cleaning system, you need solonoid pilot valves that operate quickly and without fail, anytime and every time.

Tough design

Strong materials: manufactured from pressure die cast aluminum or brass

Pressure proof

Designed to operate with compressed air manifold pressures ranging from: -  30kPa (5psi) to 860kPa (125psi) for HEWE product range

0.5 bar to 7.5 bar for HEWE product range

Temperature proof

Designed for operational temperatures of -40 °C (-40°F) to 82°C (179.6°F).  

Explosion-proof pilot models available 

Also in accordance with the ATEX Directive 94/9/CE, Zone 22 (Dust).

HEWE solenoid pilot valves have pilot bodies and covers manufactured from pressure die cast aluminum. They are designed to operate with compressed air manifold pressures ranging from 30kPa (5psi) to 860kPa (125psi). 

HEWE single remote solenoid pilot valves are machined from brass. They are designed to operate with compressed air manifold pressures ranging from 0.5 bar to 7.5 bar.

HEWE’s industrial valves may generally be installed in any orientation, although it is preferable to mount the solenoid above the valve to minimize the ingress of dirt and foreign matter into the ferrule tube. Care should be taken not to use the solenoids cover as a lever when installing or removing the valve. For reliable operation, ensure the supply voltage is no more than 15 percent above or below the rated solenoid voltage.

HEWE solenoid pilot valves are specifically designed for the reverse pulse jet filter cleaning of dust collectors and baghouses. 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

The overview shows different configurations of Pilot Valves.