Enactus-LEK777 Burgmann LEK777 Replacement
FeaturesAPI 682 Category 2 and 3,Website:, Type A, Arrangement 1 sealSingle sealBalancedCartridge unitStationary multiple springsSolid seal facesAdvantagesSuitable 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 sleeveOperating rangeShaft diameter: d1 = 20 ... 110 mm (0.79" ... 4.33")Pressure (product seal): p = vacuum ... 60 bar ( … 870 PSI)Temperature: 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. MaterialsSeal 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 applicationsRefining technologyOil and gas industryPetrochemical industryChemical industryPower plant technologyLight volatile hydrocarbonsLPG plantsAPI 610 / ISO 13709 pumpsProcess pumpsserviceProvide special designAccording to the requirements and conditions for the custom processing
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