supply of twin tower, heatless, regenerative desiccant type air dryer. , twin tower, heatless, regenerative desiccant type air dryer for removing moisture from com pressed air with drying capacity of 50 cfm (85.5 cubic meter/hr at 10 kg/cm2). operating pressure 3.0 to 1 4.0 bar capable of achieving an atmospheric dew point of (-) 40 degree c to (-) 60 degree c, with a maximu m achievable level of (-) 70 degree c. inlet ambient temperature 40 degree c. operating on 240v ac / 50 h z. with the following key features, electronic controls and solid-state timers for reliable, automatic operatio n, a muffler on the purge air outlet to decrease operational noise, purge air loss: 10% to 15% of the compr essed air for regeneration of the desiccant towers, optional equipment: can be outfitted with humidity indic ators, total dryer bypass lines, and specialized filters for removing oil mists and dust. make delair with mod el no dd 55 or similar. note:- 1) for other than delair make, detailed technical catalogue conforming the s pecifications shall be furnished along with the tender for technical evaluation. 2) offer with non submission of the detailed technical catalogue along with tender will be rejected. [ warranty period: 30 months after the date of delivery ] ]