New inlet group to connect expansion vessel and pressure relief valve, incorporating check valve and service valve, to insure installation is correct every time. Allows for easier quicker installation, saves valuable time and service valve facilitates easy maintenance.
Please note water pressure fluctuates from place to place and from time to time. It is usually highest at night when demand for water by the public is lowest.
In most instances water pressure is below 4.2 bar and this kit is not required. If there is any doubt, it is strongly recommended that the pressure is measured with an appropriate meter.