This series of products is a 3/2 and/or 5/2 pilot acting intrinsically safe solenoid valve. Using advanced cartridge structure sealing technology, the spool valve is designed based on Namur standard and can be mounted with pneumatic actuator directly. The in-line mounting also is available. The coil and the intrinsic safe circuit is hermetically sealed and protected by thermoplastic enclosure which can be used in hazardous locations Ex ia IIC T6 Ga and Ex ia IIIC T85℃ Db approved by ATEX and IECEx.