Enactus-LL9DJUE Burgmann LL9DJUE Replacement

Enactus-LL9DJUE Burgmann LL9DJUE Replacement

FeaturesAPI 682 Category 2 and 3, Type A, Arrangement 2 sealDual seal in face-to-back arrangementDry contact outer seal (containment seal)BalancedCartridge unitStationary multiple springsSolid seal fa
Product description


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

  • Dual seal in face-to-back arrangement

  • Dry contact outer seal (containment seal)

  • Balanced

  • Cartridge unit

  • Stationary multiple springs

  • Solid seal faces


  • Outer seal which can be used for flashing as well as non-flashing applications prevents hazardous emissions in case of inboard seal failure

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

  • Longer seal life

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

  • 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 (primary seal): p = vacuum ... 60 bar (870 PSI)
Pressure (secondary seal): p = 2.75 bar (40 PSI) normal operation,
max. 60 bar (870 PSI) in wet operation
Temperature: -40 °C … +176 °C (-40 °F … +349 °F)*
Sliding velocity: ... 25 m/s (82 ft/s)
* Engineered up to 260 °C (500 °F) with FFKM (K) secondary seals.


Seal ring (primary seal): Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
Seal ring (secondary seal): Special carbon
Mating rings:
Silicon carbide SSiC (Q1), RBSiC (Q2)
Secondary seals:
FKM (V), FFKM (K), EPDM (E), NBR (P)
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-ll9djue burgmann ll9djue replacement at competitive price. Should you have any special requirement, we can also offer you customized service. Welcome to wholesale bulk enactus-ll9djue burgmann ll9djue replacement with our factory and check the pricelist with us.

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