The key specifications of the Aluminium Heat Exchanger 400-500 CFM are — Medium: Air; Design Pressure: 1.3MPa; Design Temp.: -5 to 70°C; Hydrostatic Test Pressure: 1.95 Mpa. These specifications are based on the standard GEM Equipments design; always verify against your machine's requirement before use. GEM Equipments Pvt. Ltd., established in 1984 and ISO 9001:2015 certified, is one of India's leading manufacturers of compressed air dryers, cooling towers, industrial chillers, and compressed air treatment accessories, based in Coimbatore, Tamil Nadu.