Enactus-LL9DSUU Burgmann LL9DSUU Replacement

Enactus-LL9DSUU Burgmann LL9DSUU Replacement

FeaturesAPI 682 Category 2 and 3, Type A, Arrangement 3 sealDual seal in face-to-face arrangementSame size of inboard and outboard sealBalancedCartridge unitStationary multiple springsSolid seal facesAdvantages
Product description


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

  • Dual seal in face-to-face arrangement

  • Same size of inboard and outboard 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: p = 60 bar (870 PSI)
Temperature: -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 rings: Blister resistant carbon,
Silicon carbide SSiC (Q1), RBSiC (Q2)
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), Duplex (G1)

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-ll9dsuu burgmann ll9dsuu replacement at competitive price. Should you have any special requirement, we can also offer you customized service. Welcome to wholesale bulk enactus-ll9dsuu burgmann ll9dsuu replacement with our factory and check the pricelist with us.

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