Biogas Blowers from Aerzen USA are designed for digester gas applications. They ensure process safety and reliability, and are available with intake volume flows of 50 to 1,500 icfm and positive pressure up to 15 psig. They meet the European requirements for ATEX Directive 94/9/EC as well as North American requirements for NEMA Class 1, Group C and D, Division 1 areas. They offer gastight sealing of the drive shaft; a combined sealing system including a floating ring and lip seals, and balanced neutral chamber with gas leakage returned to suction; a Chemcoat fluoropolymer internal coating for corrosion protection; base support with integrated discharge silencer (explosion-proof up to 20 bar); explosion-proof acoustic hood fan; flexible machinery mountings; a V-belt drive system with automatic tensioning, antistatic belts and spark-proof guard; suction silencer designed for operating over pressure 1.1 bar g; a non-return flap for installation between two flanges; and expansion joints with stainless steel liners. 610/380-0244;


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