Explosion Protection
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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 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
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

 

Flap valve catalogue : VIGIFLAP
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Certificate INERIS 19ATEX0016X
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EXPLOSION ISOLATION VALVE DIMENSIONS
 DN
(mm)
DN
(Inch)
Minimum Volume of the
Vessel
LMin*
Minimum Mounting
Distance
LMin**
Minimum Mounting
Distance
L Max
Maximum Mounting
Distance
Download PDF
(mm)
Download PDF
(inch)
VIGIFLAP
ø
1606*0,70m34,0m6,0m17m
VIGIFLAP
ø
1606*0,70m34,0m6,0m17m
VIGIFLAP
ø
1606*0,70m34,0m6,0m17m
VIGIFLAP
ø
1606*0,70m34,0m6,0m17m
VIGIFLAP
ø
1606*1,35m33,0m5,0m17m
VIGIFLAP
ø
1807*0,70m34,0m6,0m17m
VIGIFLAP
ø
1807*1,35m33,0m5,0m17m
VIGIFLAP
ø
2008*1,35m34,6m6,6m17m
VIGIFLAP
ø
25010*1,35m34,0m6,0m17m
VIGIFLAP
ø
30012*2,90m34,6m6,6m17m
VIGIFLAP
ø
35014*2,90m34,2m6,2m17m
VIGIFLAP
ø
40016*4,50m35,2m7,2m17m
VIGIFLAP
ø
45018*4,50m34,7m6,7m17m
VIGIFLAP
ø
50020*6,05m35,8m7,8m17m
VIGIFLAP
ø
55022*6,05m35,5m7,5m17m
VIGIFLAP
ø
60024*7,65m37,2m9,2m17m
VIGIFLAP
ø
65026*7,65m36,7m8,7m17m
VIGIFLAP
ø
70028*7,65m36,4m8,4m17m
VIGIFLAP
ø
75030*10,00m37,3m9,3m17m
VIGIFLAP
ø
80032*10,00m36,9m8,9m17m

* 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

* Vessel (potential explosion source)

** Organic dust, synthetic dust and metal dust

FEATURES OF THE EXPLOSION ISOLATION VALVE :
PROCESS FLOW POSITIONS :
PRESSURE DROP CURVES: