Pressure-equalising valve for showers

[20pictures]

My research seems to come up with contradictory advice, so I am seeking some clarification.

I have mains pressure cold water & low pressure hot water from a hot cylinder. I intended fitting a manual tap/shower mixer to the bath with a pressure-equalising valve, isolating & double check valves located beneath. Would the non-thermstatic pressure-equalising valve be suitable for the job?

 

[masona]

If you do a search on here, some plumbers find they don't work 100%. It's really best if you can take the cold feed from the cold water storage tank for equal pressure.

 

[corgiman]

Masona is right the pressure valves wont do jack to alignh mains pressure to gravity.

He speaks most wisley he do