Our high integrity valves have:
> A field proven track record
> 10 year service interval (6 years to maintain SIL 3)
> Wide range of flow and function options
> Stainless Steel, Aluminum or Brass construction options
> Industry leading Force Friction Ratio (FFR)
> Cable terminations inside coil - No additional Ex terminations required
> Rated for 100% duty
> Wide temperature range -76°F to 248°F (-60
o
C to 120
o
C)
> International approvals
> SIL approved
Force friction ratio
The critical safety element of a solenoid valve is its Force Friction Ratio (FFR). The
FFR is a measure of the relationship between the force presented by the spring
return mechanism and the frictional resistance within the valve. In basic terms,
the higher the FFR, the more likely the valve is to operate when demanded, as the
spring will have a force in excess of the friction.
Poppet design solenoid valves generate much lower friction than spool design
solenoid valves, and this advantage is greatly enhanced at extreme temperatures –
both hot and cold.
IMI Maxseal and IMI Herion solenoid valves offer an FFR of 10 - the highest in the
industry.
IMI Precision Engineering offers a number of safe, reliable and cost-effective integrated solenoid
valve solutions for actuation control in upstream and downstream applications including the control
of process pneumatic actuators and the control and handling of neutral and aggressive gases and
liquids. Our valves are typically manufactured with stainless steel housings and Ex-proof coils, with
a broad choice of materials for seals to suit the environmental and application specifications.
ICO4
solenoid
stainless
steel
Solenoid valve technology
