2TMR series dual seals for agitators

 Application of the mechanical seals, intended for agitators

2TMR series dual mechanical seal is designed for sealing the shafts of agitators, reactors and other equipment, in which the leakages of handled liquid are not acceptable.

Antifriction bearings are applied in the dual mechanical seal of 2TMR-P type in order to stabilize and reduce the radial runout in the seal.

2TMF series dual mechanical seal of a cartridge type is a multi-spring, hydraulically unloaded seal with fluoroplastic secondary seals, located on the sealed side.

2TMF-P series dual mechanical seal of a cartridge type is designed for agitators and is characterized by fluoroplastic secondary seals, located on the sealed side, as well as by antifriction bearings, reducing the radial runout in the seal.

Specific design features:

  • construction simplicity and reliability;
  • long service life in comparison with the similar ones;
  • hydraulically unloaded friction pairs;
  • cartridge type construction (simple installation / removal);
  • springs are located in a barrier liquid;
  • the auxiliary seal is a non-metallic throttle bush;
  • the barrier liquid is supplied into the seal from the external source;
  • prior to shipment all mechanical seals are subjected to bed tests.
  • The mechanical seal for the agitator is applied together with a tank heat exchanger of BTN-12D-35K type and the circulation of the barrier liquid from the seal into the tank. At the same time, the pressure of the barrier liquid exceeds the sealed one.

Mechanical seal for the agitator is applied with the pumps

Mechanical seals, designed for agitators, which are used in the chemical industries, can be applied together with the following pumps:

  • large-capacity ammonia production pumps (condensate extraction pumps (items 112J, 113J, etc.), ammonia pumps (items 109J and 1002J), pumps and hydraulic turbine, working with the Carsol and Benfield solutions (items 106J, 107J and 107JHT);
  • ХБ 160/210 and ХБ 500/260 series ammonia water pumps;
  • MSD 8х10х15 and MSD 4х6х10 series ammonia main line pumps;
  • Х 45/31 ГОУ series graphite pumps.

Parameters in the seal working area

  • Sealing pressure: up to 30 atmospheres;
  • Temperature of the sealing liquid / gas: from minus 30 up to 200 °С;
  • Temperature during the application between the casing of the chemical device and thermal barrier (cooler on the shaft): up to 400 °С.

Applicable materials:

  • Casing parts: 20Х13, 08Х18Н10Т, 10Х17Н13М2Т and ВТ-1;
  • Friction pairs: silicium carbide and tungsten carbide;
  • Secondary seals are rubber rings made of fluorine rubber, perfluoro elastomer and ethylene propylene, as well as rubber rings in a fluoroplastic cover.

If you have any questions on the selection of the necessary equipment or if you would like to buy 2TMR series dual mechanical seals for agitators, please, contact us via a contact form.

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