"Ricky C" wrote in message
...

How vital are inserts with pushfit plumbing with 22m acorn pipe?

I just did a very awkward plumbing job under my floorboards: I
installed two push-fit stopcocks in the main send and return of my
central heating system. After doing the job I realised I had forgotten
to use the stainless steel pipe inserts in the ends of the 22mm Acorn
pipes that went into the stopcocks.

The joints are not leaking at present, but are they likely to become
leaky in future? How vital is it that I take the floorboards up again
and redo the joints with inserts in the pipe-ends?

Thanks
Ricky C


Pipe inserts (support sleeves) should always be used with Hep2O pipe
(and with Acorn, its predecessor). The support sleeve serves several
purposes:-

1) It helps to make the pipe round if it has been slightly crushed by
cutting
2) It assists in jointing with push fit fittings
3) It is necessary to ensure the long term performance of the joint,
particularly at elevated temperatures and pressures.

If using compression joints on Hep2O pipe, it is essential that a support
sleeve is inserted into the pipe, as it provides support for the pipe
against
the olive.

The Hepworth Plumbing Products Team
--
Tel: +44 (0)1709 856 300 |Hepworth Plumbing Products
Fax: +44 (0)1709 856 301 |Edlington Lane, Edlington
Email: |Doncaster, UK
http://www.hepworthplumbing.co.uk |DN12 1BY