DS Air Relay switches have been designed for the zone 0 applications requiring multiple set points, but with only one or two process connections. Typical applications are for alarm and trip functions. Some other are to keep pressure between two limits HI and LO, with independent signals. Other applications are for HI and HI-HI limits or LO and LO-LO limits in the same pressure switch.

Typical application areas are in hazardous & nonhazrdous locations like power sector, pharma, oil and gas, petrochemical, chemical & other industries.

Applications

• Oil & Gas
• Petrochemical
• Refineries
• Mines
• Bulk Drug & Pharma
• Chemical Industries
• Water Treatment
• Boiler & Compressors
• Textile Machinery
• Burners and Furnaces
• Glass and Metal Industries
• Chemical Industries
• Natural Gas, LPG storage and transportation

Product Specifications

• Storage temperature : Atmospheric temperature
• Media Temp.:- for rubber diaphragms 80 degree C max., higher with metal diaphragms
• Enclosure : Die cast aluminium to IP 66
• Switch output :  Pneumatic
• Process connection : 1⁄4 “BSP standard,