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Akman Cartridge Mechanical Seal MA290 for Centrifugal Pumps/Eccentric Screw Pumps/Process Pumps1
Sealing Gaskets, Mechanical Seal, Cartridge Seal
Zhangjiagang Akman Seal Manufacturing Co., Ltd.
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Product Description FeaturesCartridgeBalancedIndependent of direction of rotationStationary multiple springsSprings and pin located on the atmospheric sideAdvantagesExtremely short length design -the total length including the seal cover is less than 50 mmEasy installing on the pumps without modifying the stuffing boxExcellent followability due to no influence from run-out, squareness or vibration of the shaftMounted outside the stuffing box for providing excellent air cooling performanceUn-wetted springs and knock pins for protecting from lockout by liquidOperating rangeMA290:Pressure: p = … 20 bar (290 PSI)Temperature:t = -20 °C …160 °C (-4 °F ... 320 °F) (oil),0 °C ... 60 °C (32 °F ... 140 °F) (water)Sliding velocity:vg = max. 20 m/s (66 ft/s)Viscosity: 0.5 Pa·sSolids content: 0.3 %MA291:Pressure: p = … 16 bar (232 PSI)Temperature:t = -20 °C …160 °C (-4 °F ... 320 °F) (oil),0 °C ... 60 °C (32 °F ... 140 °F) (water)Sliding velocity: vg = max. 20 m/s (66 ft/s)Viscosity: 3 Pa·sSolids content: 10 %MaterialsSeal face (MA290): High density carbon graphiteSeal face (MA291): Silicon carbide (Q1)Seat (MA290/291): Silicon carbide (Q1)Metal parts: CrNiMo steel (G)Secondary seals: FKM (V)Recommended applicationsPetrochemical industryChemical industryPharmaceutical industryPulp and paper industryWater and waste water technologyFood and beverage industryUniversally applicableCentrifugal pumpsEccentric screw pumpsProcess pumps ITEMDESCRIPTION1Seal face2, 5, 7O-Ring3Spring4Seat6Drive collar8Set screw9Seal cover10Gasket11Assembly fixture12HSH cap screwDimensional Data:dd1 min.d1 max.d2d3l1l2l3l42030515810442186012253551581044218601230405663108421865123545667311842167514405066731184216751445557178128421680145060818813844169014556581881384416901460709610316446141051865759610316446141051870801021091784614111187585114121193491412318809011412119349141231885951241312084913133209010012413120849131332095105134141218491314320100110134141218491314320Products: Riscky LiMob: +86-17312558289Website: http://akman2006.en.made-in-china.com
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