R548

Three-way ball control valve, 2 3/4" female gas threaded connections, DN50, PN16, KVS = 25, nickel-plated brass body, stainless steel internal parts, EPDM O-ring stem seals, TEFZEL characteristic curve disc, PTFE valve seat, EPDM internal seal O-ring, fluid temperature +6...+120 °C. Control port A-AB: equal percentage control curve optimized in the opening range, bypass B-AB: linear control curve. Control port A-AB: perfect sealing leakage rate with air bubble seal, bypass -B-AB leakage class with a leakage loss of approx. 1...2% of the KVS value.