Product Description
Atlas AT Z-1118 Valve Seat is a precision-machined hydraulic valve seat designed for Atlas Zenith-Type 9 manual pallet jack hydraulic pumps. Constructed from carbon steel with a ground sealing surface, it provides a critical sealing function in the pump valve assembly. Compatible exclusively with Atlas Zenith-Type 9 hydraulic units.
Compatibility: Fits pallet jacks made by Atlas, model Zenith. SKU: AT Z-1118
Specifications
Dimensional
| Mounting Details | Press-fit or threaded into pump valve cavity (exact method per model assembly) |
Hydraulic
| System Compatibility | Designed for sealed hydraulic fluid environments up to manual pallet jack working pressures |
Material
| Construction Material | Precision-machined carbon steel |
Part Numbers
| Manufacturer Part Number | AT Z-1118 |
| OEM Part Number | AT Z-1118 |
| Compatible Models | Atlas Zenith-Type 9 manual pallet jack hydraulic unit |
Frequently Asked Questions
Q: What is the AT Z-1118 valve seat?
A: The AT Z-1118 is a precision-machined carbon steel valve seat for the pump valve assembly in Atlas Zenith Type 9 manual pallet jack hydraulic units. It provides the sealing surface where the valve ball rests to control hydraulic fluid flow and pressure.
Q: Is the AT Z-1118 compatible with Atlas Zenith Type 9 jacks?
A: Yes. The AT Z-1118 is designed exclusively for Atlas Zenith Type 9 hydraulic pump assemblies. It is a direct OEM replacement component and will not fit other Atlas models or competing brands. Verify your jack is Zenith Type 9 before ordering.
Q: What is the sealing surface finish on the AT Z-1118?
A: The AT Z-1118 has a ground sealing surface that provides a precision seat for the valve ball. This machined finish ensures a hydraulic-tight seal to prevent internal leakage and maintain system pressure. The surface finish is critical to pump performance.
Q: What causes AT Z-1118 valve seat leakage?
A: The AT Z-1118 valve seat can develop leakage when the sealing surface becomes pitted by contaminated hydraulic fluid, corroded by moisture, or worn by the valve ball after extended use. Signs include pressure loss, inability to hold raised loads, and slow descent under no load.
Q: What maintenance extends AT Z-1118 valve seat life?
A: Maintain proper hydraulic fluid cleanliness by changing the filter regularly and replacing hydraulic fluid per maintenance schedule. Keep the pump cool to prevent fluid breakdown. Store the pallet jack in dry conditions to prevent moisture ingress. Replace the valve seat if internal leakage develops.