Enactus -LEK777 Burgmann LEK777 Replacement
FeaturesEquivalent to Burgmann LEK777Single sealBalancedCartridge unitStationary multiple springsSolid seal facesOperating rangePressure (product seal): p = vacuum ... 60 bar ( … 870 PSI)Temperature: -40 °C … +176 °C (-40 °F … +349 °F)*Sliding velocity: vg = 50 m/s (164 ft/s)Viscosity: ... 300 mPa·sSolids content: ... 0.5 wt.%* Engineered up to 260 °C (500 °F) with FFKM (K) secondary sealsMaterialsSeal ring: Blister resistant carbon, Silicon carbide SSiC (Q1), RBSiC (Q2)Mating ring: 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 applicationsOil and gas industryPower plant technologyLight volatile hydrocarbonsLPG plantsAPI 610 / ISO 13709 pumpsProcess pumpsRecommended piping plansProcess side: 01, 02, 11, 12, 13, 14, 21, 22, 23, 31, 32, 41Atmospheric side: 51, 61, 62, 65A, 65B, 66A, 66BAdvantagesSuitable for higher speedsGood followability due to no influence from run-out, squareness or vibration of the shaftCompact designLow heat generation and power consumption due to narrow seal face widthLonger seal lifePressure-balanced design prevents mating ring being forced out under reverse pressureNo damage to shaft sleeve as dynamicO-Ring is not in direct contact with the sleeveEnactus -LEK777 Dimentions(mm)API/d1API/d2API/d3d4d5l1l2l3l
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