CB4D

Description

Double cartridge mechanical seal with double hydraulic balancing suitable for services with pressurised auxiliary fluid or for auxiliary fluid at atmospheric pressure (see operating limits). Ideal for heavy-duty applications with dangerous liquids, at high temperatures and pressure. Easy installation thanks to the new Fluistrip positioning device and to the flange slots which adapt to different stuffing boxes. The reinforced sleeve tolerates higher shaft run-out and adapts to mixers, dryers, mills and also to assembly directly onto the pump shaft.

• Double balanced seal for enhanced performance, able to tolerate momentary pressure reversals.
• Flushing connections for Plan 72.
• Slotted flange for more flexible mounting.
• Fluistrip: positioning device for correct and easy installation, to be pulled off after assembly but before starting-up the machine.
• Auxiliary seal in graphite/silicon carbide with flushing liquid outside the seal surfaces in order to prevent overheating.
• Bidirectional pumping device for flushing liquid.
• Patented rotating-ring drive device on atmosphere side with reduced axial dimensions.
• Thicker sleeve to tolerate high run-out values and to prevent deformations during maintenance and assembly.
• Sliding drive device compensates for any movement and maintains contact with rotating ring.
• Springs outside the product and clean profile for enhanced reliability even with viscous products that crystallise, and also in processes which require thorough cleaning.

*NOTE: the barrier fluid pressure must always be greater that the process with ΔP as operating limits.

(*) Inch dimensions are available upon request.
The maximum values are determined by the specific combination of operating conditions.
For further details, please contact us.

Additional information