The SIROLL Integral Solenoid Valve (ISV)
is a well proven spray valve having been supplied to the
rolling industry worldwide for many years.
It is specifically designed for modern automatic
flatness control (AFC) systems that demand a fast
control response for mill thermal control, whilst
providing high reliability and simple maintenance.
The SIROLL ISV spray system, although
designed to interface with AFC systems, may also be used
via a manual control panel from which an operator can
select individual spray levels or a fixed spray pattern.
The function of the SIROLL ISV spray system is
to apply zone cooling to the work rolls to remove residual
flatness errors and to control the bulk temperature of the mill
during the rolling process. This is achieved by pulsing the
coolant through individual valves matched to each zone to
control the thermal profile of the work rolls.
This system is designed to provide coolant to the mill rolls in
the optimum quantities and pattern to achieve effective and
efficient roll thermal control. The appropriate spray nozzles
are selected and positioned in the mill for optimum performance
of the spray system.
Each system is modeled for each mill application and its product
range.
Over 300 references worldwide.
The "normally open" valve is actuated by a 24Vdc
electrical solenoid valve. When the solenoid is
de-energized, air pressure is exhausted through a port in
the valve body causing the diaphragm to be deflected against
the rear of the valve wall by coolant pressure. This allows
coolant to flow through the valve.
When the solenoid is energized, compressed air is applied to
the "dry" side of the diaphragm holding it closed
against the coolant ports preventing coolant flow to the
nozzle.
The solenoid valve is switched via the AFC or from an
operator control panel.
We offer a full system design service including mill and coolant system modifications for the installation of new coolant spray systems.