Single mechanical seal, unloaded, with conical spring R-H12N for stepped shafts is used at temperatures from -40 to + 220°C, with pressure up to 2.5 MPa and speed up to 15 m/sec. Depends on the direction of rotation of the shaft. Used mainly in chemical pumps and water pumps. Analog: Burgmann H12N / H12GN (with hot-pressed moving ring), AESSEAL T01DBU / T01DB, Hecker HN430N. Mechanical seal for pump Wilo, K, KM, X, AH, AHP, AH, Calpeda, DAB, Ebara, Grundfos, for pump KSB, Allweiler, SALMSON, ACD Cryo, Flygt, IMP Pumps, LOWARA, PENTAX, Foras, Fristam, for pump SPERONI, ZENIT, Inoxpa, JL, Johnson pump, KOLMEKS, Pedrollo, SAER, Vulcan, WQ, WQK, for pumps Tuchenhagen, ALFA LAVAL, Donjoy, Mission Magnum.
