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TANDEM MECHANICAL SEALS

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Tandem-mechanical-sealsApplied in pump units and equipment where sealed fluids are oil products, liquefied hydrocarbon gases, liquids with harmful chemical agents.
Tandem mechanical seals are mostly effective in cases when barrier fluid penetration into pumped fluid is not permitted. 

 

FEATURES

  • First (circuit) friction pair operates at barrier fluid and sealed fluid pressure drop
  • Second, atmospheric one, - at barrier fluid and air pressure difference.
  • Pumping is performed according to API682: Plan 52.
  • Barrier fluid pressurization by means of gas is not required. 

TECHNICAL PARAMETERS

Shaft diameter, mm 22..200
Shaft rotation speed, rpm 30…4500
Temperature of sealed medium, °C -60…200
Pressure of sealed medium, MPa up to 10
Maximum leakage, l/h 0,002
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