Mechanical seal R-21UK is a single seal used at temperatures from -20 to +180°C, with a pressure of up to 1.5 MPa and a speed of up to 13 m/s. It is used in centrifugal, turbine pumps, compressors and other equipment of the oil, chemical, food industries. It can be used in pumps: Goulds Pumps, Summit, SAER, Koshin, JL, JLM. Analogue of mechanical seals: John Crane Type 21 (UK Standard), AESSEAL P04 / P04T. 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.