AIR VALVE AVK DN50x2 SEWAGE EXTERNAL THREAD

AVK 2-way combination valve for air release and air intake. Automatically releases air under pressure through a small exhaust opening. During system filling or draining, the valve opens fully to allow a large volume of air to pass through. Available with flange or 2"/3" thread. Designed according to DIN/EN standards. Standard flange drilling EN1092-2 (ISO 7005-2). Designed according to EN 1074-1 and 4. Float seat made of reinforced nylon, fastener made of AISI 316 stainless steel, and valve body made of bronze. Lower part of the float, flexible pressure-balancing stem, and spring made of AISI 316 stainless steel. Upper part of the air release valve: body, base, retaining key, and seal support made of reinforced nylon. Patented EPDM rubber seal, float made of foamed polypropylene, and curved part made of polypropylene. Operating pressure range: 0.2–10 bar. Exhaust orifice sizes: Automatic: 12 mm², Kinetic: 804 mm² This product description is an automated translation of the original Finnish description.