JG Speedfit Superseal Plastic Push-Fit Pipe Inserts… (84981)

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JG Speedfit Superseal Plastic Push-Fit Pipe Inserts 10mm 10 Pack (84981)

John Guest Speedfit Insert.

  • Demountable
  • Suitable for Drinking Water
  • Suitable for Water Systems
  • Suitable for Hard & Soft Water Areas
  • 50 Year Manufacturer's Guarantee (T&Cs Apply)
  • BBA Approved

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This only has 1 seal whereas some have 2 seals. Is it best to use the latter of single seal good enough not to leak later.

Asked by: Rks1066

Single O ring

I can't see the STS10P with a single O ring on the JG web site, only the STS10 with dual O ring and the TSM10NP with none. When would you use the single O ring insert? Is it still current part?
Asked by: Essix
I can see the single being used with a radiator valve, you could assemble the valve with the insert "sticking out" and then push the pipe on to it.
Answered by: ricpol
Date published: 2020-07-02

Are these inserts necessary on copper microbore pipes or are they just for plastic?

Asked by: DIYChristopher
Thank you for choosing a Speedfit product. JG Speedfit STS10P Pipe inserts are only needed when connecting to Speedfit pipe. When connecting to copper pipe inserts are not needed.
Answered by: Anonymous
Date published: 2020-05-03
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A Size 10 mm
Brand JG Speedfit
CE Standard (Tested to EN...) BS 7291, KM 39767.
Manufacturer Guarantee 50 Year Manufacturer's Guarantee (T&Cs Apply)
Max. Pressure @ Max. Temperature 12 bar
Max. Pressure @ Min. Temperature 12 bar
Maximum Operating Temperature 95 °C
Minimum Operating Temperature 4 °C
Model Name Superseal
Pack Size 10
Pieces in Pack/Case 10
Pipe Fitting Material Plastic
Pipe Fitting Product Type Inserts
Pipe Fitting System Push-Fit
Product Type Pipe Inserts


Instruction Manual