Working principlePassive purely-mechanical hardware requiring no power supply. When internal overpressure reaches static burst pressure pstat.

The rupture-diaphragm bursts or cover plate opens for instantaneous release of explosion energy. Diaphragm-type (rupture disc): Single-shot action.

After activation, the diaphragm tears; equipment must be shut-down and fitted with a brand-new diaphragm before resuming operation.

Gravity-hinge resettable-type: Cover opens under overpressure and automatically re-seats by dead-weight after pressure drops.

Permitting repeated use. Structural composition. - Explosion-vent diaphragm/cover plate: Aluminum-alloy or stainless-steel composite plate with scored weakening grooves to guarantee accurate burst-opening pressure.- Flange base: Bolted connection to dust-collector housing.- Sealing gaskets: stop air leakage under normal equipment-operating status.- Optional accessories: Explosion-vent duct.

Flame arrester explosion-vent position-feedback switch. Key technical parameters (Dust-Removal Industry Standard)- Static opening pressurePstat: 01–0.02MPa (10–20kPa)- Circular/rectangular.

Dimensions customizable according to required venting area- Material: Aluminum-alloy 304 stainless-steel- Operating temperature: -20℃ ~ +80℃- Applicable standards: GB15605–2024.

EN14797 NFPA68- Mounting position: Dust-collector top/side-wall vent openings; must not face personnel walkways.

Classification & 1. Diaphragm-type rupture-vent (disposable): Fast response, high venting efficiency; must be replaced after explosion activation.

Most-common option for dust-collector applications. Gravity-hinge resettable explosion vent: Automatically resets post-explosion-relief for repeated service.

Suited for pulverized-coal pipelines and silos; note that accumulated dust may impair actuation sensitivity. Flame-less explosion-vent assembly: Specified for indoor installation.

Extinguishes flame during pressure-relief so no flame jet propagates outside the building.- Pulse-jet bag-house & cartridge dust collectors (handling combustible powders including corn-starch dust.

Citric-acid dust).- Cyclone separators raw-material silos dust-conveying pipelines.- Grain-processing chemical-processing & feed-processing production lines with dust-explosion hazard potential.

Usage Precautions

1. Explosion-vent outlet shall never point directly toward personnel, equipment or operational walkways.

Diaphragm surface must remain unpainted, free of impact damage and dust accumulation; otherwise burst-pressure characteristics will shift.

Once a diaphragm-type unit has actuated, full replacement is mandatory; repair or reuse is prohibited. For gravity-resettable types: Schedule regular cleaning of dust deposits on cover plates to reduce jamming-induced failure-to-open.

Vent area shall be calculated according to dust-explosion indices; physical size must not be arbitrarily reduced.