Reusable Explosion Doors & Hatches

In the event of an explosion, how will you protect your personnel, equipment, and stock? Combustible dust explosions occur regularly in a wide range of industries, sometimes with devastating consequences. Be sure you have strong, effective safeguards in place to protect your people from injury and your company from damage.

Philadelphia Safety Device’s robust explosion relief doors and explosion vent panels are engineered to provide superior, cost-effective pressure relief protection in the event of an explosion.

A specialized door designed to safely vent the pressure from an explosion within the vessel, preventing damage to the structure and potentially protecting personnel

Explosion Relief Doors

Features of Our Explosion Relief Doors


Our explosion relief doors are engineered to afford superior pressure relief protection for your personnel, capital equipment, and infrastructure.

Our doors feature a robust magnet and pre-loaded spring relief combination that ensures outstanding performance, reliability, and repeatability — so you know your doors will open when needed, every time.

When closed, our floating, spring-loaded door panels compress flexible gaskets to a rigid frame, ensuring a proper positive seal. PSD explosion relief doors also feature:

  • Stainless steel latch springs, hinges, and fasteners
  • Stainless steel, carbon steel, and aluminum door frame with stainless steel or aluminum door panels
  • 3 or 4½ inch standard frame sizes
  • Self-lubricating sleeve bearings
  • Heat- and cold-resistant designs available for temperatures from -65 to +1,000 F
  • Lightweight door panel materials weighing less than 2.5 lb/sq.ft
  • Fully assembled with frame bolts in place for easy installation
  • Food-grade designs available built with FDA, USDA, and NSF-approved materials
  • A unique dual-purpose design that provides both effective pressure relief protection and emergency access or egress for personnel in the event of a blast or fire.

Industries We Serve

  • Food Processing
  • Woodworking & Lumber Mills
  • Pharmaceuticals
  • Chemical Manufacturing
  • Metalworking
  • Textiles
  • Coal Mining & Handling
  • Plastics & Rubber Manufacturing
  • Recycling Facilities
  • Agriculture
In the food sector and processing, seemingly harmless substances—sugar, flour, spices, starch, and even dried milk or grain particle, have the potential to form dust and cause a dust explosion.

Learn More About Our Explosion Relief Doors

Protect What Matters with a Quality Explosion Relief Door or Hatch

Since 1975, we have been helping companies protect their people and their assets with robust, reliable explosion doors and explosion hatches. With over 5,000 doors installed, we stand behind our commitment to providing you with the quality pressure relief devices you need to stay safe. 

Click below to learn more about SMT’s tough, reliable, and cost-effective explosion relief solutions.