Explosion Isolation Flap Valve – NOVEx

The Explosion Isolation Flap Valve remains normally open during normal flow. In case of explosion, the excess pressure is produced. This excess pressure closes the flap, isolating and protecting the rest of the equipment.

Flap valve with open function during normal flow. Reduces pressure by up to 80% compared to normally closed valves.
Sizes from: DN 71mm to DN 1000mm
Use for organic and metal dust up to Kst 440 bar.m/s. (IIIA,IIIB and IIIC)
Made of carbon steel or stainless steel.
Very robust construction.
Wide range of accessories can be configured and extended at any time.

In the event of an explosion downstream (e.g. in the filter), gas expansion occurs, whose overpressure will force the flap to close, creating a barrier that isolates and protects the rest of the equipment of the installation upstream.

Technical details

Dimensions	from 71 to 1000 mm (DIN 24154)
Material	carbon steel or stainless steel
Max. range of dust concentration in the duct	< 500 g/m3
Max. Pred admissible	2 barg for DN≤500 mm 1 barg for 500<DN≤1000 mm
Installation distance	DN ≤ 500mm: between 3 y 10 m DN > 500mm: between 5 y 13 m
Product	Kst dust up to St3 Kst 440 (organic and metallic)
Marking	Ex D
ATEX Certification	According to EN 16447:2014 LOM11ATEX7047/2 NFPA 69

Dimensions

Cotas novex

Reference	Diameter	External dimensions
NOVEx071	71	440x349x265
NOVEx100	100	469x386x294
NOVEx200	200	569x478x394
NOVEx300	300	669x650x536
NOVEx400	400	769x787x640
NOVEx500	500	869x887x740
NOVEx600	600	969x1040x889
NOVEx710	710	1079x1155x1005
NOVEx800	800	1169x1245x1095
NOVEx900	900	1269x1345x1195
NOVEx1000	1000	1369x1445x1295