PU B-1-14

Frequently Asked Questions

Q: What is the PU B-1-14 and where is it used?
A: The PU B-1-14 is an OEM release plunger O-ring seal for Pallet Mule and Wesley International manual pallet jack pump systems. It maintains hydraulic integrity at the release plunger interface during pump operation.

Q: What material is this O-ring seal made from?
A: The PU B-1-14 is manufactured from polyurethane elastomeric compound, selected for chemical resistance to hydraulic fluids and durability under cyclic compression in pump applications.

Q: What is the difference between PU B-1-14 and the parts it replaces?
A: The PU B-1-14 supersedes PUB-1-14 and PTB-1-14, and is equivalent to PT B-1-14. All designations refer to the same release plunger O-ring seal for Pallet Mule manual jacks, models B114. Use the current PU B-1-14 SKU for ordering.

Q: How long does this O-ring seal typically last?
A: Lifespan depends on pump cycle frequency and hydraulic fluid condition. Degradation symptoms include slow or incomplete plunger return, loss of hydraulic pressure, or visible leakage at the plunger rod. Replace immediately if these symptoms occur.

Q: What happens if the release plunger O-ring fails?
A: A failed O-ring will compromise the seal between the plunger rod and pump body, allowing hydraulic fluid to leak and preventing proper pressure retention. The jack will lose lifting capacity and fail to hold load.