emergency pipe plugemergency pipe plug

Emergency pipe plug diameter greater than 1000mm - OFR

The OFR is an inflatable emergency pipe plug with a diameter greater than 1000 mm. It has been specially designed to plug pipes with large diameters. The diameter of the pipe defines the inflation pressure. It is dedicated to the reliable and permanent sealing of pipes.

In the event of a disaster, the emergency pipe plug inflates and acts as a valve that retains the polluting products. Once confined, these liquids are pumped or diverted to a retention basin. The sealing balloon thus stops the propagation of chemical products or fire water, eliminating any risk of pollution.

It is triggered quickly and effectively by an inflation system that is operated remotely. This system makes the OFR anti-pollution plug a must-have product for working in complete safety. 

In addition, its installation does not require civil engineering.

To conclude, these anti-pollution inflatable plugs are a complement to the OPAP plugs dedicated to diameters below 1000mm.



  • Excellent chemical compatibility
  • Rapid inflation (manually or automatic)


  • Environmental protection
  • Remote inflation system
  • Secure closing system


  • Requires no major civil engineering work
  • Rapid and economical installation

Detailed information

  • Material: 550daN/5cm coated fabric with cold-glue assembly
  • Diameter: 770 > 2115 mm
  • Other shapes available on request (oval, elliptical …)
  • Inflation: by air
  • Temperature resistance: – 25°C to + 85°C
  • Inflation pressure: max. 0.5 bar
  • Accessories:
    • 1 x 3/4″ or 1″1/2 valve mounted on the central shaft
    • 10 protective polyethylene bags
  • Red painted stainless steel control unit, locked by key or lead seal

Technical informations

Ref Min. Ø stopper (mm) Max. Ø stopper (mm) Length of ferrule (mm) Max. inflation pressure (bar) Max. back pressure (bar)
OFR 780 770 805 950 0.5 0.2
OFR 870 850 895 1100 0.5 0.2
OFR 978 945 995 1200 0.4 0.2
OFR 1075 1050 1105 1300 0.4 0.1
OFR 1170 1170 1230 1400 0.4 0.1
OFR 1265 1235 1300 1450 0.3 0.1
OFR 1365 1375 1450 1500 0.3 0.1
OFR 1465 1450 1530 1600 0.3 0.09
OFR 1640 1535 1615 1800 0.3 0.08
OFR 1830 1805 1910 2000 0.2 0.07
OFR 2000 2000 2115 2200 0.2 0.07

You can not find your dimensions

Our design department employs the best project leaders and designers and will be pleased to develop and create a tailor-made product specially for your unique project.


Composition / Advice

Pre-installation tips
Clean the water pipe thoroughly before installing the stopper. It is essential that the pipe is not in use when installing the stopper.
Installation tips
Cover the stopper with the protective sleeve that is supplied and secure it with the cable ties. Install the first mounting accessory followed by the second after the OFR has been inserted. No inflatable part
Maintenance tips
Regularly inspect the condition of the pipe and check the OFR device annually. Ensure that the cover is removed before visually inspecting the device or performing an inflation test. Ensure that the cover is still intact if the stopper has been deployed in an emergency situation; replace it if it is torn.

Standards / regulations

1 year against all manufacturing defects


Fact Sheets / Business Guides
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Remote control unit
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