Product Description
Valve cartridge kit MHG321G is an OEM replacement hydraulic valve core for Dayton and Liftsplus-compatible manual pallet jack pump assemblies, providing regulated fluid control for lifting and lowering, with machined steel construction and dynamic sealing for reliable operation at typical manual hydraulic system pressures.
Specifications
Hydraulic
| Functional Role | Controls hydraulic flow for lifting and lowering operations |
| Working Pressure | Suitable for hydraulic system working pressures up to 3000 PSI |
Material & Construction
| Body Material | Machined steel valve body |
Part Numbers
| Manufacturer Part Number | MHG321G |
| OEM Part Number | MHG321G |
| Kit Compatibility | Compatible with Dayton hydraulic hand pallet truck models 2ZE58, 2ZE59, 2ZE62, 2ZE63 |
Frequently Asked Questions
Q: What does the MHG321G valve cartridge kit do in a manual pallet jack?
A: The MHG321G is a hydraulic valve core cartridge that controls fluid flow within the pump assembly. It regulates the direction and volume of hydraulic fluid during lifting and lowering operations, ensuring smooth and controlled movement of the jack mast under load.
Q: What pallet jack models are compatible with the MHG321G valve cartridge kit?
A: The MHG321G valve cartridge kit is compatible with Dayton manual hydraulic hand pallet truck models 2ZE58, 2ZE59, 2ZE62, and 2ZE63. Before ordering, verify your equipment model number matches one of these Dayton models to ensure proper fitment and function.
Q: What is the MHG321G valve cartridge kit made from?
A: The MHG321G features a machined steel valve body with precision internal ports and dynamic seals. The machined steel construction provides durability and maintains dimensional accuracy for proper fluid control at typical manual hydraulic system pressures, usually in the 2000 to 3000 PSI range.
Q: What are symptoms of a failed or worn MHG321G valve cartridge kit?
A: Signs of valve cartridge failure include slow or inconsistent lifting action, inability to lower the jack, jerky or stalled movement, or hydraulic fluid leakage from the pump assembly. If your jack does not respond normally to pump handle operation, the valve cartridge may require replacement. Worn seals inside the cartridge can compromise system pressure.
Q: Is the MHG321G valve cartridge kit included with the pump assembly or sold separately?
A: The MHG321G valve cartridge kit is a serviceable component sold as a replacement part. Most original pump assemblies include a cartridge, but when the internal valve core wears or seals fail, the MHG321G can be replaced without replacing the entire pump body, making it a cost-effective maintenance item.