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04 SAFE SYSTEMS SCVA cross monitored safety valve In situations requiring a complex machine system to be rendered safe during an emergency, then a dual cross monitored dump valve is essential. The SCVA is a pneumatically monitored valve eliminating the need for further electronic systems in order to meet the requirements of DIN EN ISO13849-1 "e Cat.4" or similar. Downstream air is exhausted in the shortest possible time due to the very high reverse flow (up to 30,000 l/min). > Four port sizes in both BSP and NPT thread forms > Requires only 50 micron filtration for cost effective operation > Supplied complete with highly effective exhaust silencer > Extremely long service life even in high frequency switching applications - excellent B10 values SCSQ cross monitored safety valve with integrated soft start In applications requiring a controlled re-start of the air supply, the SCSQ includes a variable soft start function. This can be adjusted to suit the downstream volume and required fill rate. Like the SCVA, the SCSQ is pneumatically monitored to meet the requirements of current safety legislation and requires no additional electronics. > Incorporates a glandless spool for extremely long life expectancy, giving best in class B10 values > Can be mounted as part of a control system or connected to Excelon air preparation units via integral adaptors > Supplied complete with highly effective exhaust silencer Electrically operated safety valves Model Description Port Size Voltage Pressure Range Supply Flow - Port 1 to 2 Exhaust Flow - Port 2 to 3 SCVA081BB0A02400 3/2 Self-monitoring Safety Valve G1/4 24v dc 3 … 10 bar 1,280 l/min 1,550 l/min SCVA101DE0A02400 3/2 Self-monitoring Safety Valve G1/2 24v dc 2 … 10 bar 3,150 l/min 6,500 l/min SCVA201EF0B02400 3/2 Self-monitoring Safety Valve G3/4 24v dc 2 … 10 bar 3,900 l/min 14,000 l/min SCVA321FH0C02400 3/2 Self-monitoring Safety Valve G1 24v dc 2 … 10 bar 8,250 I/min 30,000 I/min SCVA081RR0A02400 3/2 Self-monitoring Safety Valve 1/4 NPT 24v dc 45 … 150 psig 1.3 Cv 1.6 Cv SCVA101TU0A02400 3/2 Self-monitoring Safety Valve 1/2 NPT 24v dc 30 … 150 psig 3.2 Cv 6.6 Cv SCVA201UV0B02400 3/2 Self-monitoring Safety Valve 3/4 NPT 24v dc 30 … 150 psig 4.0 Cv 14.2 Cv SCVA321VX0C02400 3/2 Self-monitoring Safety Valve 1 NPT 24v dc 30 … 150 psig 8.4 Cv 30.5 Cv Other voltage options available contact IMI Precision Engineering for more information Model Description Port Size Voltage Pressure Range Supply Flow - Port 1 to 2 Exhaust Flow - Port 2 to 3 SCSQ101D00D02400 3/2 Self-monitoring Safety Valve with Soft Start G1/2 24v dc 2.5 … 10 bar 2,450 l/min 4,100 l/min SCSQ101T00D02400 3/2 Self-monitoring Safety Valve with Soft Start 1/2 NPT 24v dc 40 … 150 psig 2.5 Cv 4.2 Cv Other voltage options available contact IMI Precision Engineering for more information Easy retrofit onto existing machines No additional electronic monitoring Adjustable fill rate Performance Level; e Cat.4