Where is braided packing typically found?

• A. Pump casings
• B. Stuffing boxes
• C. Heat exchangers
• D. Valves

Answer: (B)

Braided packing is primarily found in stuffing boxes, which are used to seal around moving shafts or rods in various machinery, including pumps and mixers. The purpose of braided packing is to prevent the leakage of fluids while allowing for the rotation or motion of the shaft. This type of packing is made from many strands of fiber or material that are tightly woven together, providing a strong seal that can endure the mechanical and thermal stress encountered in these applications.

While braided packing can have applications in certain aspects of pumps and valves, its main function is realized in the stuffing boxes where effective sealing is critical. In contrast, pump casings mainly require more rigid seals or gaskets, heat exchangers utilize different sealing methods optimized for high temperatures or pressures, and valves typically depend on integrated sealing designs to control flow without the need for braided packing. Thus, the primary association of braided packing is with stuffing boxes where it serves its intended purpose most effectively.