Cartex Single seals

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)

Category: Mechanical seals

Description

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

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

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

Universally applicable

Centrifugal pumps
Eccentric screw pumps
Process pumps

M2N

QFT1000