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Mechanical seal for seal arrangements 351.Н, 361.Н

Fields:

Oil and gas Petrochemicals transport Refinery

For pumps:

НК НКВ НМ НПС ТКА
Dual seals designed in compliance with API 682 requirenents intended for refinery plants service conditions.
  • Part of seal arrangement
  • Single seal with an auxiliary seal
  • Cartridge design
  • For plain shafts
  • Balanced
  • Impeller (depends on API 682 Plan choice
  • Compliant with API 682
  • Cooling system according to API 682:
    » Plan 11 + Plan 62
    . Plan 21 + Plan 62
351.Н
  • Rotating flexible element
361.Н
  • Stationary flexible element
Order

Sealing fluids

  • Oil
  • Oil products
  • Liquids according to OST 26.06.2028-96 recommendation

Performance parameters

  • Pressure upto 35 kgf/cm2
  • Temperature: from –30° upto +150(200)°С
  • Shaft diameter: 30-120 mm
Cost Effective Solutions

Material design

  • Metal parts: Stainless steel К, E
  • Secondary seal: Elastomer based on different rubber compounds
  • Seal faces material: Carbon graphite impregnated, silicon graphites, silicon carbide, tungsten carbide
Cost Effective Solutions

Heat exchanger design specific features

  • Cartridge design increases pump availability for operation
  • The seal is comletely adapted to oil pumps connection dimensions and does not require any pump parts modifications
  • The seal have all process bores necessary for most typical connections according to API 682
  • Each assembled seal is rig tested in dynamic mode and does not require any adjustment or disassembling before installation

What one needs to know when choosing a mechanical seal?

Equipment characteristics

Shaft diameter, temperature, pressure and fluid type are the main parameters when choosing a seal, but there are many other factors

Choice of a manufacturer is important

Lots of products that do not meet the required quality are being produced at the market now.

Service life extension

Operating time of component part is several times longer if the mechanical seal is selected correctly

Filling in an order form usually takes about
5minuts