type 21 mechanical seal brands

The Type 21 is ideal for use in centrifugal, rotary and turbine pumps, compressors, chillers and other rotary shaft equipment. It is also commonly used by the wastewater and water systems industries for applications such as waste treatment, potable water and HVAC.

TYPE 21 Elastomer Bellows Seal A B C D E F – Face/Primary Ring – Seat/Mating Ring – Spring – Retainer – Elastomer Bellows – Drive Band Product Description The Type 21, a general purpose seal, has become an industry standard with OEM designers. Made of stainless steel, it provides a service range well beyond that which is possible with comparably priced seals of other metallurgical construction. I The positive static seal between the bellows and the shaft, along with the free movement of the bellows, means that there is no sliding action that could lead to shaft damage by fretting. This ensures that the seal will automatically compensate for normal shaft run-out and axial movements. This versatile seal can be used on a wide range of equipment including centrifugal, rotary and turbine pumps, compressors, mixers, blenders, chillers, agitators, and other rotary shaft equipment. Ideal for pulp and paper, pool & spa, water, food processing, wastewater treatment, and other general applications. Temperature: -40˚F to 400°F/-40˚C to 205°C (depending on materials used) Speed: Up to 2500 fpm/13 m/ s (depending on configuration and shaft size) Self-aligning unit automatically adjusts for shaft end play and run-out. Eliminates potential shaft fretting damage between the seal and shaft. Positive mechanical drive protects the elastomer bellows from overstressing. Single coil spring improves tolerance to clogging. Simple to fit and completely field repairable. Can be used with practically any type of mating ring.

We recognize and understand the vital role of john crane type 21 mechanical seal in their application. With purposes including securely fastening components within systems, and contaminants prevention such as gases and liquids from navigating through enclosed and sealed areas. That is why we offer wholesale john crane type 21 mechanical seal in different variations and diversities to ensure the integrity and efficiency of systems they will be applied to will function successfully and optimally. The different seals" types available include static that does not move along with other seals and dynamic seals that move collaboratively.

Depending on the industry and selected purpose, we consider john crane type 21 mechanical seal requirements. Requirements are like pressure, that is pressure changes, to ensure they can withstand and do not deform by the sealed fluid, the load and how it can withstand deflection, dynamics such as the alignment and vibration, and temperature covering the environmental conditions and the heating arising from the friction of the seal operation and fluid movement.

The seals are either bolts, nuts, or washers. Seal bots are commonly used because of their benefits in being reusable, preventing fluids and contaminants from escaping even under high pressure. Nuts are essential on temperature withstanding and compatibility with screws, studs, and bolts, in addition to, easy installation. Moreover, washers can withstand high pressures and are compatible with other seals.

The Type 21 is ideal for use in centrifugal, rotary and turbine pumps, compressors, chillers and other rotary shaft equipment. It is also commonly used by the wastewater and water systems industries for applications such as waste treatment, potable water and HVAC.

Mechanical seal R-21 single seal, which is used at temperatures ranging from -20 to + 150°C, a pressure up to 1, 5 mPa.s is the rotation speed of 13m/sec.

Mechanical seal for Wilo pump, K, KM, X, AH, AHP, AH, Calpeda, DAB, Ebara, Grundfos, pump KSB, Allweiler, SALMSON, ACD Cryo, Flygt, IMP Pumps, LOWARA, PENTAX, Foras, Fristam, pump SPERONI, ZENIT, Inoxpa, JL, Johnson pump, KOLMEKS, Pedrollo, SAER, Vulcan, WQ, WQK, pump Tuchenhagen, ALFA LAVAL, Donjoy, Mission Magnum.

Mechanical seal pumps are designed to seal the centrifugal pump shaft and prevent leaking. This seal sits on the shaft and is made up of the rotary and stationary parts, and it keeps contaminants out and fluids in. At Mesco, we offer a wide range of mechanical seals compatible with a majority of OEM brands. Our selection includes cartridge mechanical seals, type-1, type-2, type-21, and more. If you don’t see the mechanical seal pump that fits your needs, our specialized team will create custom seals to meet your application. Our products are expertly manufactured from high-quality materials, ensuring that your seal will last for years to come. Check out our selection today!

Type 21 replacement pump seals are available in various sizes for many different pumps. If you do not see your pump listed please call 1-888-843-3633 or email us at [email protected] !

*** Pump companies, pump models and seal models are listed for reference only. SAF Seals and SAF Precision Manufacturing Ltd. are NOT affiliated with any pump manufacturers. ***