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Intrinsically safe solenoid valves

Intrinsically safe solenoid valves Asco Numatics has introduced two intrinsically safe solenoid valves with Ex ia IIC T6 certification. The solenoid operators are designed for use on the 327 range of direct operated solenoid valves and are available in epoxy coated aluminium or stainless steel. The solenoids are certified to ATEX, Category 1G/2D and Equipment Protection Level (EPL) Ga/Db. Both operators are IECEx approved and certified to IEC 61508 Functional Safety (SIL 3 capable).

The polarity insensitive solenoid operators have a power consumption of only 0.5W at 24V DC and feature a newly developed electronic booster coil and stainless steel core for optimum performance. Available with either an epoxy coated aluminium or 316L stainless steel enclosure rated to IP66 and IP67. The operator can be rotated 360° and locked into position to select the best position for cable entry. Elec-trical connection is via a cable gland (M20x1.5) or cable connection 1/2in NPT and easy access screw terminals. The 327 series solenoid valves feature a brass, stainless steel or aluminium (NAMUR) body.

The solenoid valves are suitable for use in ambient temperatures from -40°C to +60°C, and are rated to ll 1/2G Ex ia IIC T6 Ga / II 2D Ex tb lllC T85°C IP66/67 Db, Certification: ATEX and IECEx EN 60079-0, EN 60079-11, 60079-31, EN 61241-0 and EN 61241-11. The introduction means that Asco can now offer a universal intrinsically safe valve for 3/2 and 2/2 NO and NC applications in aggressive environments across the process industry.

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