Non-return Explosion Valve - Q-FlapCompact II

With the non-return explosion valve series Q-FlapCompact II explosions in nearly all industrial sectors can effectively be isolated. The Q-FlapCompact II is certified as a protective system acc. to EU guideline 94/9/EG (ATEX 114) and approved for decoupling explosions of organic and inorganic dusts.

Standard Operation

During operation the downstream mounted flap is kept open through the process air flow. In case of breakdown the flap is closed due its own wieght. Starting the system, the opening of the flap is damped.

Explosion Event

In case of an explosion the Q-FlapCompact II closes due to the pressure front spreading within the ductwork. The following explosion flame and the pressure cannot strike back the ductwork. Personnel working at capturing points or downstream system parts are protected against the explosion effects.

The flap damping element prevents the flap to open shortly after an explosion due the appearing low pressure. The passive non-return Q-FlapCompact II protects horizontal aspiration lines between a flow velocity between 15-30 m/s. Extensive research and testing under real explosion conditions enabled approval of the Q-FlapCompact II for St 1 or St 2 (max.K_ST-Value = 300 bar x m/s). Q-FlapCompact II is applicable for reduced pressure (P_red) up to 0,5 bar (7.25 psi)

Monitoring with Q-FlapCompact II Plus (optional)

Additionally the Q-FlapCompact II Plus offers a wear-and-tear sensor that monitors the abrasion that could possibly occur on the stainless steel flap. It is also equipped with an integrated clogging sensor that indicates any kind of product accumulation underneath the seats which ensures safe closing of the flap.

Your benefits at a glance

	Passive protection system
	Reduced maintenance due to monitoring
	Short installation distances: Retrofitting of existing plants without changes in pipeline layout

The non-return valve can be opened completely, that means quick maintenance without dismantling the device.

Applications

	Downstream explosion decoupling with dry dust separators when grinding class-fibre reinforced components, in the chemical and pharmaceutical industries, in the wood-processing industry, for varnish dusts, etc. and for blasting plants
	Explosion decoupling of dryers, air separators, mills, silos, fluid bedgenerators, etc.
	The system is also suitable for dust concentrations beyond the lower explosion limits.

Product Information
	Explosion Isolation Q-FlapCompact II / Q-FlapCompact II Plus

Product Information

Explosion Isolation

Q-FlapCompact II / Q-FlapCompact II Plus

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