Cartex
Single seals

Cartex <br/>Single seals
ItemDescription
1Seal face
2, 5, 7O-Ring
3Spring
4Seat
6Shaft sleeve
8Drive collar
9Set screw
10Snap ring
11Cover
12Assembly fixture
13Screw
14Gasket
15Screw plug
16Lip seal (-QN), throttle ring (-TN)

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)

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)



Product variants

Cartex-SNO
Single seal without connections, for dead-end operation.
Cartex-TN
Single seal, same as Cartex-SN but with throttle ring (item 16). The cover has auxiliary connections for flushing and quench.
Throttle ring: PTFE carbon-graphite reinforced (T12).
Cartex-QN
Single seal for operation with unpressurized quench. Same as "-SN' version but with outboard lip seal (item 16). The cover has auxiliary connections for flushing and quench.
Lip seal: NBR (P), PTFE carbon reinforced (T3).
Cartex-Vario
Cartridge seals with modified cover for eccentric screw pumps.
For e.g. Seepex BN,
Netzsch NM...S, NM...B, NE (P),
Allweiler AE, AEB, AED,
Robbins & Myers / Moyno 2000 CC,
and Mono E-Range.
Please inquire.
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