Reliable Performance
Corrosion Resistance
Easy Installation
Extended Service Life
The B4 Bellows Type Seal is a high-performance single-acting mechanical seal engineered for reliable sealing in pumps,
mixers, agitators, and various rotating equipment across industrial applications. Designed with an inside-mounted
configuration and a flexible rubber bellows assembly, this seal provides efficient leakage control while accommodating
minor shaft misalignment, vibration, and axial movement. The elastomeric bellows functions as both a secondary sealing
element and a self-energizing mechanism, ensuring consistent face loading without the need for complex spring
arrangements. Its compact and robust construction enables smooth operation, simplified installation, and reduced
maintenance requirements, making it an ideal choice for OEM and replacement applications. The B4 seal is specifically
designed to maintain dependable sealing performance under moderate pressure conditions while protecting equipment
from fluid loss and contamination. The precision-engineered sealing faces work together to minimize friction and wear,
resulting in extended service life and improved operational efficiency. Suitable for handling water, light chemicals, process
fluids, and general industrial media, the seal offers excellent resistance to operational stresses and varying service
conditions. The rubber bellows design effectively compensates for shaft runout and vibration, helping maintain sealing
integrity throughout the equipment’s operating cycle. Manufactured from quality materials for durability and corrosion
resistance, the B4 Bellows Type Seal delivers a cost-effective sealing solution for industries seeking reliability, performance,
and long-term value. Its proven design, ease of installation, and consistent sealing capability make it a preferred choice for
centrifugal pumps and other rotating machinery where dependable operation and reduced downtime are critical to
productivity and process efficiency.
S1 BIDIRECTIONAL, CLUTCH TYPE SEAL, UNBALANCED
S2 CONICAL SPRING, UNBALANCED
S3 INSIDE MOUNTED, UNBALANCED
S4 INSIDE MOUNTED, UNBALANCED
S5 INSIDE MOUNTED, UNBALANCED
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