Product Description
Plug Valve
Frequently Asked Questions
Q: What is a plug valve used for on manual pallet jacks?
A: A plug valve controls hydraulic flow direction in the pallet jack lift circuit. It allows the operator to raise and lower the load by directing pressurized fluid to and from the hydraulic cylinder.
Q: What equipment does the UL 1112 plug valve fit?
A: The UL 1112 is compatible with manual pallet jack models from standard manufacturers. Verify your specific jack model and serial range before ordering, as valve port sizes and thread configurations vary.
Q: What are the port size and thread type specifications for the UL 1112?
A: Port sizes and thread types (NPT, BSPP, or other) depend on the original equipment. Contact our team with your pallet jack model number to confirm exact specifications and fitting requirements.
Q: How do I know if the UL 1112 plug valve needs replacement?
A: Signs of valve failure include inability to lift or lower smoothly, jerky or sudden movement, load drift when stationary, and oil leakage around the valve body. These indicate internal spool wear or seal degradation.
Q: What materials is the UL 1112 constructed from?
A: Plug valves are typically cast iron or aluminum bodies with hardened steel spools and elastomeric seals. Construction materials provide corrosion resistance and durability under hydraulic pressure and repeated cycling.