Enactus-LEK777 Burgmann LEK777 Replacement

Enactus-LEK777 Burgmann LEK777 Replacement

FeaturesAPI 682 Category 2 and 3, Type A, Arrangement 1 sealSingle sealBalancedCartridge unitStationary multiple springsSolid seal facesAdvantagesSuitable for higher speedsGood followability due to no
Product description


  • API 682 Category 2 and 3, Type A, Arrangement 1 seal

  • Single seal

  • Balanced

  • Cartridge unit

  • Stationary multiple springs

  • Solid seal faces


  • Suitable for higher speeds

  • Good followability due to no influence from run-out, squareness or vibration of the shaft

  • Compact design

  • Low heat generation and power consumption due to narrow seal face width

  • Longer seal life

  • Pressure-balanced design prevents mating ring being forced out under reverse pressure

  • No damage to shaft sleeve as dynamic
    O-Ring is not in direct contact with the sleeve

Operating range
Shaft diameter:
d1 = 20 ... 110 mm (0.79" ... 4.33")
Pressure (product seal):
p = vacuum ... 60 bar ( … 870 PSI)
t = -40 °C … +176 °C (-40 °F … +349 °F)*
Sliding velocity: vg = 50 m/s (164 ft/s)
* Engineered up to 260 °C (500 °F) with FFKM (K) secondary seals.

Seal ring: Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
Mating ring:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Secondary seals:
EPDM (E), NBR (P), FKM (V), FFKM (K)
Springs: Hastelloy® C-276 (M5)
Metal parts: CrNiMo steel 316 (G)

Recommended applications

  • Refining technology

  • Oil and gas industry

  • Petrochemical industry

  • Chemical industry

  • Power plant technology

  • Light volatile hydrocarbons

  • LPG plants

  • API 610 / ISO 13709 pumps

  • Process pumps

Provide special design
According to the requirements and conditions for the custom processing

Enactus Industrial, one of the professional manufacturers and suppliers of mechanical seals, now brings you the latest design enactus-lek777 burgmann lek777 replacement at competitive price. Should you have any special requirement, we can also offer you customized service. Welcome to wholesale bulk enactus-lek777 burgmann lek777 replacement with our factory and check the pricelist with us.

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