The
concept of the flow control valve is to provide a flow of liquid at a
pre-determined level against a variation of pressure within the system. To this
end, our valve operates in the following way:
The RAH rubber control ring is housed within a preformed chamber which has a
tapered seat. Any increase in
pressure forces the control ring down the chamber to reduce the size of the
orifice. As the pressure reduces,
the control ring returns to its original shape so enlarging the orifice. This
maintains a balance of pressure and orifice to give a constant flow.
The
RAH control ring is available in either Nitrile or EPDM rubber and has a life
expectancy of up to 10 years use in pure liquid systems.
The
valve operates over a temperature range of -25 deg C up to 1 00 deg C continuous
and 120 Deg C intermittently. Its
pressure range is 1 bar minimum.
