ANSI Cartridge
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Genuine Sealmatic Certified Component
Sealmatic Mechanical SealsSeries: CTX ANSI ANSI Standard
CTX ANSI Single Seals
Universal balanced cartridge single mechanical seal engineered for standard (CTX-ASPN) and big bore (CTX-ABPN) ANSI process pumps. Ideal for conversion from gland packings without modification to the stuffing box chamber.
Sizes1.000" ... 3.750"
Max Pressure25 bar (363 PSI)
Temperature-40°C to +220°C
Max Speed16 m/s (52 ft/s)
Product Description
Single seal configuration
Balanced design
Independent of direction of rotation
Cartridge construction
Available for standard (CTX-ASPN) and big bore (CTX-ABPN) seal chambers
Single seals with flush (-ASPN, -ABPN) and with quench combined with lip seal (-ASQN, - ABQN) or throttle ring (-ASTN, -ABTN)
Technical Features
1
Ideal for use in ANSI process pumps
2
O-ring is dynamically loaded to prevent shaft damage
3
Dimensional modification of the stuffing box chamber is not required due to short radial installation height
4
Ideal to convert and retrofit pumps with packings and large volume OEM production
5
Cartridge unit factory assembled for easy installation, which reduces downtime
6
Rugged design for long operating life
Details
Component Index & Parts Breakdown| Item No. | Description |
|---|---|
| 1 | Seal face |
| 2, 5, 7 | O-Ring |
| 3 | Spring |
| 4 | Seat |
| 6 | Shaft sleeve |
| 8 | Drive collar |
| 9 | Set screw |
| 10 | Snap ring |
| 11 | Cover |
| 12 | Assembly fixture (remove after installation) |
| 13 | HSH Cap Screw |
| 14 | Gasket |
| 15 | Lip seal (-QN), throttle ring (-TN) |
Performance Capabilities
CTX-ASPN, -ABPN, -ASTN, -ABTN, -ASQN, -ABQNShaft Sizesd1 = 1.000" ... 3.750"*Other sizes on request
Temperature Ranget = -40°C ... +220°C(-40°F ... +428°F)
Material Combination BQ1:High Speed
Pressurep1 = 25 bar (363 PSI)
Speed16 m/s (52 ft/s)
Material Combination Q1Q1 or U2Q1:Standard
Pressurep1 = 12 bar (175 PSI)
Speed10 m/s (33 ft/s)
Permissible axial movement:± 1.0 mm (d1 ≥ 75 mm ± 1.5 mm)
Note: Always verify secondary seal elastomer limits against media temperature.
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)
High integrity materials: Hastelloy® C-4 springs, CrNiMo cast steel hardware, and premium silicon carbide/tungsten carbide faces.
Standards & Approvals
Standard specification complianceANSI Standard Dimensions
Fully engineered to standard ANSI B73.1M and B73.2M pump stuffing boxes and big bore configurations without machining.
Typical Industrial Applications
Recommended equipment & industry sectorsANSI process pumps
Chemical industry
Food and beverage industry
Petrochemical industry
Pharmaceutical industry
Universally applicable
Water and waste water technology