Dwyer RDCS20C is a springless diaphragm valve designed for use with compatible gases. It has a temperature range of -4 to 185°F and can be powered by 110 VAC, 220 VAC, or 24 VDC. The valve has a NEMA 4X enclosure rating and features a DIN connection for electrical connections. It has a power consumption of 12 W and can be mounted in any position. The wetted materials include aluminum for the body, thermoplastic polyurethane for the diaphragm disc, and NBR for the solenoid seals. The valve has a pressure limit ranging from 4.4 psi to 124.7 psi and comes with various process connection options. The cover is made of aluminum, body bolts are zinc plated SS, and the solenoid is made of nylon.