Assured Megaflo repairs within 24 hours
Heatrae Sadia Megaflo Approved Service Engineers
SW8 Associates Ltd - London - Kent - Essex
Repairs  |  Installation  |  Servicing  |  Surveys

Home   |   About   |   Contact Us   |   Charges   |   Servicing   |   Self Help & Tech Info   |   Coverage   |   Economy 7   |   Descaling   |   My Clients  

Call Mark direct on 07515-687740
We’ll answer your questions FREE of charge at:

What and where is the T&P valve? (Temperature and Pressure relief valve).

The Temperature & Pressure (T&P) valve is designed as a safety precaution in the event the cylinder reaches a hazardous condition.

If the pressure or temperature reach hazardous levels, the spring loaded valve will operate and release the pressure, or high temperature water into the safety discharge pipe, and hopefully to a safe discharge location. Due to the high temperature and pressures, these valves are threaded into the side of the cylinder, and have minimum pipe/connection lengths that have to be adhered to..

Older original T&P valve. Has a lever operation to test and release mechanism/ (solid brass)

The more up to date equivalent.

Has a control knob that has to be twisted to get the valve to operate.

If the system is discharging through the Tundish at any time, then there’s a fault!

It would be wise to contact a ‘Part G3’ qualified engineer to have a look!


In response to concerns about ‘rogue traders’ which are often highlighted in the media, a partnership of Local Authority Trading Standards Offices have taken the groundbreaking step of putting together the Buy With Confidence Scheme.

The scheme provides a list of local businesses which have given their commitment to trading fairly.

Each business listed has undergone a series of rigorous checks and audits before being approved as a member of the scheme.

Read more here:

Gas Safe Registered: SW8 Associates 191833.   Vat Registered: 124 8939 87.   Registered with Companies House 784826

Part G3 licensed pressurised unvented hot water engineers  |   WRAS Water Regulations Approved   |   Gas Safe Registered 191833

Updated 02/08/12