single balanced cartridge mechanical seal for marine industry

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Features

• Single seal
• Cartridge
• Balanced
• Independent of direction of rotation
• Single seals without connections (-SNO), with flush (-SN) and with quench combined with lip seal (-QN) or throttle ring (-TN)
• Additional variants available for ANSI pumps (e.g. -ABPN) and eccentric screw pumps (-Vario)

Advantages

• Ideal seal for standardizations
• Universal applicable for packings conversions, retrofits or original equipment
• 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
• Straightforward and easy installation due to pre-assembled unit
• Individual adaptation to pump design possible
• Customer specific versions available

Materials

Seal face: Silicon carbide (Q1), Carbon graphite resin impregnated (B), Tungsten carbide (U2)
Seat: Silicon carbide (Q1)
Secondary seals: FKM (V), EPDM (E), FFKM (K), Perflourocarbon rubber/PTFE (U1)
Springs: Hastelloy® C-4 (M)
Metal parts: CrNiMo steel (G), CrNiMo cast steel (G)

Recommended applications

• Process industry
• Petrochemical industry
• Chemical industry
• Pharmaceutical industry
• Power plant technology
• Pulp and paper industry
• Water and waste water technology
• Mining industry
• Food and beverage industry
• Sugar industry
• CCUS
• Lithium
• Hydrogen
• Sustainable plastics production
• Alternative fuels production
• Power generation

• Universally applicable

• Centrifugal pumps
• Eccentric screw pumps
• Process pumps

Operating range

Cartex-SN, -SNO, -QN, -TN, -Vario

Shaft 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 = 12 bar (174 PSI)
Sliding velocity: vg = 10 m/s (33 ft/s)

Axial movement:
±1.0 mm, d₁ ≥75 mm ±1.5 mm

water pump shaft seal for marine industry