The ‘ROMA’ Type ‘D70’ Equilibrium Float Valve is hydraulically balanced and designed to operate effectively with little or no pressure differential across the valve.
The valve disc is maintained in a state of equilibrium by employing a pressure balancing piston.
This means that the float need be only of sufficient size to operate the valve over varying pressure conditions , having only to overcome friction and the weight of the valve disc assembly.
While the float size and dimensions of the float arm are designed to suit customers’ specifications, provision for final level adjustment is made at the float arm connecting mechanism.
The angle type Fig. No. 142/3A valve is ideally suitable for end of line services in make-up water and service water tanks, etc., whereas the globe type Fig. No. 142/3 in the larger sizes are used for surface reservoirs.