Description
FLUITEN Standard Mechanical Double pusher Seals BM6T – Cat. 2, Type A, “dual” seal suitable for non-pressurized liquid flushing 2CW-CW; Cat. 2.3; Type A. Maximum pressure: 40 bar.
Key Technical Specifications:
| DIAMETER | SPEED | PRESSURE | TEMPERATURE |
|---|---|---|---|
| 20-110 (mm) | 0-23 (m/sec) | 0-20 (bar g) | -40 – 176 (°C) |
Why Choose FLUITEN BM6T?
The BM6T is a double-balanced, dual- pusher hydraulic seal (face-to-back configuration) designed for hazardous or polluting fluids. It operates with a non-pressurized buffer fluid system (Plan 53B), meeting zero-emission standards. Built for robustness, it excels in high-pressure, high-vibration pump applications
Key Technical Specifications
Seal Type: Double-balanced cartridge seal (face-to-back), suitable for Plan 53B buffer-fluid flushing
Hydraulic Balance: Bi-directional balancing to withstand reverse pressure events
Seal Faces:
Stationary rings: reaction-bonded SiC (U41) , sintered SiC (U31) , or solid tungsten carbide (K21)
Rotating rings: antimony-impregnated graphite (Z11); optional graphite insert (Z12) , SiC (U42/U32) or tungsten carbide (K22)
Elastomers: FKM , EPDM , or FFKM seals for all interfaces
Auxiliary Bushings: Fixed , floating , or segmented graphite sleeve (Z3) to manage leakage and flush needs
Springs: External Hastelloy multi-spring pack, protected from process fluid
Drive System: Fluiten triple drive-lug rotor, resistant to vibration, misalignment, and ring wear
Flushing Ports: Connections for buffer-fluid inlet/outlet and venting; incorporates multi-point injection and internal circulation for efficient heat dissipation
Installation Features: Slotted flange and Fluistrip centering tool (removed after assembly) tailored to pump stuffing-box specifications
Typical Applications
Centrifugal pumps in chemical, petrochemical, and energy industries
Handling hazardous or crystallizing fluids, requiring reliable zero-emission buffering
API 610 vertical and horizontal pumps under high vibration or misalignment conditions
Installations demanding cartridge simplicity and high robustness
Additional Features
Dual-balanced design keeps sealing integrity during pressure reversals
External springs and sliding drive ensure consistent seal under harsh mechanical stress
Buffer-fluid system ensures safe, emission-free operation without external pumps
Fluistrip and slotted flange streamline precise, low-error installation
Modular material options allow compatibility with diverse chemical and environmental conditions
The FLUITEN BM6T is a zero-emission hydraulic pusher seal ideal for pumps handling hazardous or viscous fluids, withstanding pressure reversals, vibration, and misalignment. Its robust dual-balancing, external-spring resilience, and cartridge format deliver reliable, maintenance-friendly performance in critical industrial applications.
