Description
FLUITEN Standard Mechanical Single pusher Seals CB8L – Single seal with secondary containment seal, springs outside the fluid, 2CW-CS; Cat. 1; Type A. Maximum pressure: 20 bar.
Key Technical Specifications:
| DIAMETER | SPEED | PRESSURE PROCESS | TEMPERATURE |
|---|---|---|---|
| 20-110 (mm) | 0-23 (m/sec) | 0-20 (bar g) | -40 – 176 (°C) |
Why Choose FLUITEN CB8L?
The CB8L is a compact, single- pusher, balanced seal featuring a rotating secondary containment ring. It’s engineered for systems handling moderately polluting or contaminated fluids, minimizing heat generation and mechanical load via Fluigrid micro-textured face technology. This oil-free design is built to comply with API 682 standards for demanding industrial environments.
Key Technical Specifications
Seal Type: Balanced single- pusher seal with rotary containment ring (2CW-CS, Category I)
Maximum Pressure: 20 bar(g)
Seal Face Materials:
Stationary Rings: Antimony-impregnated graphite (Z11) , reaction-bonded silicon carbide (U41) , sintered silicon carbide (U31) , or tungsten carbide (K21)
Rotating Rings: Dry-running graphite resin (ZD71) , silicon carbide (U41/U31) , or tungsten carbide (K21)
Containment Design: Rotary secondary seal reduces face thermal stress and supports dry operation
Springs: Hastelloy multi-spring pack mounted entirely outside process fluid
Drive Mechanism: Solid sliding-drive rotor ensures seal stability under vibration, misalignment, and ring wear
Gaskets: Fluoroelastomer , EPDM , or perfluoroelastomer materials for rotary , stationary , sleeve , and flange seals
Flange & Sleeve: Slotted flange and machine-specific shaft sleeve for easy retrofit or OEM mounting
Typical Applications
Pumps handling oily , contaminated , or moderately polluting fluids
Processes requiring dry-running capability and low heat generation
Installations benefiting from a compact cartridge design with minimal maintenance
Additional Features
Fluigrid texture on seal faces generates a supporting fluid film to reduce friction and heat
Rotating containment ring relieves stress on primary faces and supports dry-running
Compact slotted flange and sleeve system simplifies installation across pump types
Sliding-drive rotor enhances seal reliability in mechanically dynamic conditions
Modular material options support a wide range of fluid chemistries
