Mechanical Seals
JR mechanical seals
Name: Mr Steven
Tel: 86-0551-62658881
Fax: 86-0551-62658881
Mobile: +8618130083767
E-mail: info@supseals.com
Skype: weilianzh
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Product name : Burgmann pumps Mechanical seals Dual seals
Item : 2015129175528
keyword : Mechanical seals
Feature :
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| Details: |
FeaturesDual seal Cartridge Balanced Independent of direction of rotation Double pressure balanced Integrated pumping device Variants available: for eccentric screw pumps (-Vario) and gas-lubricated version (-GSDN) AdvantagesIdeal seal for standardizations Universal applicable for packings conversions, retrofits or OEM No dimensional modification of the seal chamber (centrifugal pumps) necessary, small radial installation height No damage of the shaft by dynamically loaded O-Ring Extended service life No damage caused by dirt entered during assembly Straightforward and easy installation due to pre-assembled unit Individual adaptation to pump design possible Customer specific versions available Recommended applicationsPetrochemical industry Chemical industry Pharmaceutical industry Power plant technology Pulp and paper industry Mining industry Food and beverage industry Sugar industry Universally applicable Centrifugal pumps Eccentric screw pumps Operating rangeShaft diameter:
d1 = 25 ... 100 mm (1.000" ... 4.000" Other sizes on request Temperature: t= -40 °C ... 220 °C (-40 °F ... 428 °F) (Check O-Ring resistance) Sliding face material combination BQ1 Pressure: p1 = 25 bar (363 PSI) Sliding velocity: vg = 16 m/s (52 ft/s) Sliding face material combination Q1Q1 or U2Q1 Pressure: p1 = 20 bar (290 PSI) Sliding velocity: vg = 10 m/s (33 ft/s) Barrier fluid circulation system: p3max = 25 bar (363 PSI) Δp (p3 - p1)ideal = 2 ... 3 bar (29 ... 44 PSI), 7 bar (102 PSI) for barrier media with poor lubricating properties. Pump startup: Δp (p3 - p1)max = 25 bar (363 PSI) allowed Recommended supply medium: max. ISO VG 5 Axial movement: ±1.0 mm, d1 ≥75 mm ±1.5 mm MaterialsSeal face: Silicon carbide (Q1), Carbon graphite resin impregnated (B), Tungsten carbide (U2)
Seat: Silicon carbide (Q1) Secondary seals: FKM (V), EPDM (E), FFKM (K), Perfluorocarbon rubber/PTFE (U1) Springs: Hastelloy® C-4 (M) Metal parts: CrNiMo steel (G), CrNiMo cast steel (G) |
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