Explosion Protection
Our Products

VIGIFLAP

Explosion Isolation Valve

APPLICATIONS

The VigiFLAP is a non-return valve designed to prevent overpressure or flame caused by a downstream explosion (dust collectors, filters, cyclones…) to propagate in the piping system.
The valve is held open by a lever arm. It can be used both at the entrance and at the exit of the filter.
This allows to isolate the filter from an explosion or an overpressure.
In case of explosion, the valve closes and remains locked preventing the progress of the flame.
The unlocking of the flap is done manually.

Body: Painted steel
Flap: Round domed flap: Stainless steel
Diameter: ø160mm to ø800mm
EPDM Gasket: -10°C to +70°C/14F° to 158F°
Flanges : ISO and ANSI flanges design
Inductive Sensor: Closing indication sensors in case of explosion or overpressure
Body: Galvanized steel
Body: Stainless steel
Gasket silicon FDA:-10°C to +180°C/14F to 356F
Capacitive sensor to prevent dust accumulation (max : 70°C)
Connection box installed on the body, opposite side of the locking mechanism
INERIS 19ATEX0016X
Explosion Isolation valve
2014/34/UE
EN16447: 2014
EN1127-1: 2019
EN14460: 2018
NFPA 69: 2019
INERIS 08ATEXQ406
ISO9001: 2015
HIGH CERTIFICATION TEST

To get our Atex certificate (N° INERIS 19ATEX0016X) according to the standard EN16447: 2014, we carried out our explosion tests in the most extreme conditions and as close as possible to the reality of the use of the product, with for example:

  • Protected Zone Pipeline :
    All test carried out with a pipeline after the flap (picture1).
  • Flap fully open :
    During the test the flap valve is held fully open until the appropriate time of release.
  • Vent panel on test vessel :
    No open ports were used during test but vent panels were always used.
SOON:

In few months our VIGIFLAP certificate will be improved with the following additionnal features Atex certified :

  • Size until diameter 1300mm
  • Dust ST3
  • Flap valve catalogue : VIGIFLAP
SIZES AND DISTANCE INSTALLATION
 DN (mm)DN (inch)Minimum Volume of the VesselLMin*
Minimum Mounting Distance
LMin**
Minimum Mounting Distance
L Max
Maximum Mounting Distance
DN (mm)DN (inch)Volume minimum de l’enceinte à protégerLMin*
Longueur minimum de montage
LMin**
Longueur minimum de montage
L Max
Longueur maximale de montage
DN (mm)DN (Pulgadas)Volumen minimum del recinto a protegerLMin*
Distancia mínima de montaje
LMin**
Distancia mínima de montaje
L Max
Distancia máxima de montaje
DN (mm)DN (inch)Minimum Volume of the VesselLMin*
Minimum Mounting Distance
LMin**
Minimum Mounting Distance
L Max
Maximum Mounting Distance
DN (mm)DN (inch)Minimum Volume of the VesselLMin*
Minimum Mounting Distance
LMin**
Minimum Mounting Distance
L Max
Maximum Mounting Distance
ø160ø6*0,70m34,0m6,0m17m
ø160ø6*1,35m3
3,0m5,0m17m
ø180ø7*0,70m3
4,0m6,0m17m
ø180ø7*1,35m3
3,0m5,0m17m
ø200ø8*1,35m3
4,6m6,6m17m
ø250ø10*1,35m3
4,0m6,0m17m
ø300ø12*2,90m34,6m6,6m17m
ø350ø14*2,90m34,2m6,2m17m
ø400ø16*4,50m35,2m7,2m17m
ø450ø18*4,50m34,7m6,7m17m
ø500ø20*6,05m35,8m7,8m17m
ø550ø22*6,05m35,5m7,5m17m
ø600ø24*7,65m37,2m9,2m17m
ø650ø26*7,65m36,7m8,7m17m
ø700ø28*7,65m36,4m8,4m17m
ø750ø30*10,00m37,3m9,3m17m
ø800ø32*10,00m36,9m8,9m17m

* Floating : Flap valve activated by the working air flow
** Flap valve kept open by its spring blade system

Kst max≤250 bar.m/s
Kst min50 bar.m/s
Pmax10 bar
145 psi
WorkingSt1
St2*
ATEX Marking II D
Pred max in protected vessel≤ 0.5 bar
VIGIFLAP resistance2.0 bar
MIE≥ 10 mJ
MIT≥ 400º C
≥ 752º F
Atex insideZone 20 (II 1D)
MESG1,7mm
0.067 inch
Dust rangeAll dusts
( Metal dust included)
Air flow speed15m/s ≤ v ≤ 30m/s
3000 ≤ v ≤ 6000 ft/min
Dust concentrationNo limit
Air flow rangePull flow and Push flow

* Kst≤250 bar.m/s

Features of the explosion isolation valve :
Process flow positions :
Pressure drop curves: