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Flange drain bag
  • Completely covers the flange
  • For lots of pipe connections
  • For DN 50 (50 mm/1.9 inch) to DN 100 (100 mm/3.9 inch)
  • Sealing pressure of 1 bar (14.5 psi)

Perfect fit for safe drainage at flanges.

Problems with leaky pipe connections? Make the task of sealing difficult leaks on all types of flanges easier for your team. Flanges are critical pipe sections and conventional sealing bags will rarely be effective here. Vetter flange drain bags cover the flange and pipe, reliably stop the leakage of hazardous liquids and at the same time allow you to drain off the liquid in a controlled and safe manner. The bags come in three sizes to cover all customary pipelines and flanges. Gel plates are included for convenient smoothing out of minor irregularities and unevenness on the pipe's surface.

It couldn't be simpler:

Place the bag around the flange and pipe, close the zip fastener along the entire length of the bag and inflate the sleeves. Immediately, everything is sealed and you can commence with controlled drainage of the liquid.

Flange drain bag sets

All sets described here include as standard components:

  • Inflation hose 1.5 bar, 10 m, blue (21.75 psi, 32 ft.)
  • Foot pump with safety valve 1.5 bar (21.75 psi)
  • Acid drain hose, 5 m (16.4 ft.), with D suction coupling V4A
  • Transport case 800 x 600 x 220 mm (32 x 24 x 8.7 inch)


  • DN 50 1500019600
    Flange drain bag DN 50, 1.5 bar (21.75 psi) and 4 sealing gel plates
  • DN 80 1500019900
    Flange drain bag DN 80, 1.5 bar (21.75 psi) and 4 sealing gel plates
  • DN 100 1500023700
    Flange drain bag DN 100, 1.5 bar (21.75 psi) and 6 sealing gel plates


  image_small_2 image_small_2 image_small_2  
  Leak on pipe flange   
  Technical data  

Uniform sealing pressure of 10 m WC (14.5 psi).

  • Working pressure: 1.5 bar (21.75 psi)
  • Test pressure: 1.95 bar (28.5 psi)
Product enquiry Print datasheet
metrical imperial 
Art. no.
External size
Øcm Øinch
cm inch
Air requirement,
at working pressure

litres cu.ft.
Weight of
individual bag, approx.

kg lbs
Weight of set,

kg lbs
DN 50 1500006600 21 8.3 90 35 1.25 0.1 3.1 6.8 17.8 39.2
DN 80 1500019200 21 8.3 90 35 1.25 0.1 3.1 6.8 17.8 39.2
DN 100 1500023400 25 9.8 92 36 1.25 0.1 3.5 7.7 18.4 40.1

In operation...

  • Sealing and controlled drainage of hazardous substances
  • On flanges and pipe connections

Good reasons:

  • Gas- and liquid-tight zip fastener
  • Acid drain hose with shut-off unit
  • Gel plates supplied to smooth out unevenness included

Guaranteed quality:

  • Individually tested (with inspection seal)
  • Stainless steel connections
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