Frequently Asked Questions

Inflatable Rubber Pipe Plugs Stoppers Pipestoppers

1.0 What is the size range of the Inflatable Rubber Plugs?

The sizes available are 2 to 78" (51 to 1,981 mm).

2.0 Are the Inflatable Rubber Plugs suitable for petrochemical applications?

Yes, the new Inflatable Rubber Plugs are suitable for use in petrochemical applications, as well as many others.

3.0 What material are the Inflatable Rubber Plugs made out of?

The Plugs are manufactured from high quality rubber, comprising a mix of styrene, butadiene and isoprene. 

4.0 What is the working pressure range of the Plugs?

Available in 1.5 to 2.5 bar options. 6 bar are available as specials in sizes below 24” (610 mm).

5.0 Does one plug cover a range of sizes?

Yes, some models of the rubber pipe plugs cover a size range which provides a cost effective method of plugging for the customer - you only have to purchase 1 plug.

6.0 Is the set-up complicated?

No, inflating the plug is very simple, just a standard quick disconnect fitting from compressor to plug.

7.0 Do the plugs have a by-pass arrangement?

Yes, we have rubber pipe plugs available that are fitted with a by-pass arrangement in 1/2”, 1”, 2”, 3” and 4” (13, 25, 50, 75 and 100 mm) diameter depending on plug size. These are often used in conjunction with the solid plugs for blocking and then draining or for pressure testing. Multiple bypass arrangement available.

8.0 How do I retrieve the plug after installation?

Metal lugs are attached to the top of the rubber pipe plug which can be used to connect wire or rope so that retrieval after use is very easy. NOTE: All Plugs must be braced prior to use.

9.0 Do these plugs take a long time to deflate after use?

No, as soon as the air line is disconnected the plugs instantly deflate, it takes a matter of seconds.

10. Can they be used for testing?

Yes, for water and air. Often used in manholes and
sewers. Large usage in the repair of sewer pipes.

11. What is the temperature range?
-40 to 70ºC.


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