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 FDA Gasket: -30°C to +70°C/14F° to 158F°
Flanges : ISO and ANSI flanges design
Inductive Sensor: Non ATEX closing indication sensors in case of explosion or overpressure
Body: Galvanized steel
Body: Stainless steel
Gasket silicon FDA and 1935/2004CE: -10°C to +180°C/14F to 356F
Counter-flange
ATEX 21 closing indication sensors
Capacitive sensor to warn dust accumulation (max: 70°C/158F)
Connection box installed on the body, opposite side of the locking mechanism
INERIS 19ATEX0016X
Explosion Isolation valve
2014/34/UE
EN16447: 2014
EN15089 : 2009
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 locked open:
    Automatic release of the valve by the pressure of the explosion
  • Floating flap:
    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 1370mm
  • ST3
EXPLOSION ISOLATION VALVE DIMENSIONS
DN (mm)DN (inch)Minimum
Vessel Volume		LMin*
Min Mounting Distance		LMin**
Min Mounting
Distance		L Max
Max Mounting Distance		Download PDF (mm)Download PDF (inch)
DN (mm)DN (inch)Volume minimalLMin *
Distance de
montage minimale		L Min+2m**
Distance de
montage minimale		L Max
Distance de
montage maximale		Télécharger PDF (mm)Télécharger PDF (inch)
DN (mm)DN (Pulgadas) Volumen minimo del recintoLMin*
Distancia mínima
de montaje		L Min+2m**
Distancia mínima
de montaje		L Max
Distancia máxima
de montaje		Descargar PDF (mm)Descargar PDF (Pulgadas)
DN (mm)DN (inch)Min. VolumenL Min *
Min.
Montageabstand		L Min+2m **
Min.
Montageabstand		L Max
Max.
Montageabstand		HERUNTERLADEN PDF (mm)HERUNTERLADEN PDF (inch)
Диаметр (mm)Диаметр (дюйм)Минимальный объем сосудаL min* Минимальное расстояние монтажаL min** Минимальное расстояние монтажаL max Максимальное расстояние монтажаЗАГРУЗКА PDF (mm)ЗАГРУЗКА PDF (дюйм)
VIGIFLAP Ø1606“0,70m34,0m6,0m17mPDF
PDF
VIGIFLAP Ø1606“1,35m3
3,0m5,0m17mPDF
PDF
VIGIFLAP Ø1807“0,70m3
4,0m6,0m17mPDF
PDF
VIGIFLAP Ø1807“1,35m3
3,0m5,0m17mPDF
PDF
VIGIFLAP Ø2008“1,35m3
4,6m6,6m17mPDFPDF
VIGIFLAP Ø25010“1,35m3
4,0m6,0m17mPDFPDF
VIGIFLAP Ø30012“2,90m34,6m6,6m17mPDFPDF
VIGIFLAP Ø35014“2,90m34,2m6,2m17mPDFPDF
VIGIFLAP Ø40016“4,50m35,2m7,2m17mPDFPDF
VIGIFLAP Ø45018“4,50m34,7m6,7m17mPDFPDF
VIGIFLAP Ø50020“6,05m35,8m7,8m17mPDFPDF
VIGIFLAP Ø55022“ 6,05m35,5m7,5m17mPDFPDF
VIGIFLAP Ø60024“7,65m37,2m9,2m17mPDFPDF
VIGIFLAP Ø65026“7,65m36,7m8,7m17mPDFPDF
VIGIFLAP Ø70028“7,65m36,4m8,4m17mPDF
PDF
VIGIFLAP Ø75030“10,00m37,3m9,3m17mPDF

PDF
VIGIFLAP Ø80032“10,00m36,9m8,9m17mPDFPDF

* Floating in horizontal position:
Flap valve activated by the working air flow
** Vertical position
With elbows
Flap valve kept open by its spring blade system

Kst max≤250 bar.m/s
Kst minNo limit
Pmax10 bar
145 psi
MIE≥10mJ
MIT≥400ºC
≥752ºF
MESG1,7mm
0.067inch
Pred max *≤ 0.5 bar
VIGIFLAP
Resistance		2.0 bar
Marque ATEX II D
Atex insideZone 20 (II 1D)
Dust **All dusts kinds
Dust
concentration		No limit
Air flow speedClean air side : ≤ 30 m/s
Dirty air side : ≤ 45 m/s
WorkingAir+dust circuit
Clean air circuit
Air flow rangePull flow
Push flow
Working pressure500mbar max
Working vacuum-800mbar max
Elbow quantityNo limit

*Vessel (potential explosion source)

**Organic dust, synthetic dust and metal dust

Features of the explosion isolation valve :
Process flow positions :
Positions and pressure drop curves: