Valve Cartridge for Uline Manual Pallet Jack
UE H-2708-AC321
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Compatibility
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Visit our diagram page for part references to popular models
Product Description
Machined steel valve cartridge for Uline manual pallet jack models, designed as a slip-in hydraulic pressure relief component for pump assemblies. Compatible with multiple Uline pallet truck models up to 5,500 lb load capacity. Includes o-ring removable cartridge for maintenance and leak prevention.
Specifications
Part Numbers & Compatibility
| Make | Uline |
| Model | H-2708, H-2900, H-3045, H-5387, H-7504, H-6710, H-8921 |
| Pressure Release Application | Hydraulic system for manual pallet jack—controls fluid release to lower forks |
| Seal Kit Compatibility | Compatible with Uline ACZ5 Seal Kit (H-4197) |
| Manufacturer Part Number | UE H-2708-AC321 |
| Part Number | H-2708-AC321 |
Performance Specifications
| Load Capacity | Up to 5,500 lb |
Additional Specifications
| Valve Type | Slip-in hydraulic pressure relief cartridge |
| Material Specification | Machined steel cartridge, nitrile butadiene rubber (NBR) seals |
| Finish | Uncoated machined surfaces |
| Maintenance Feature | Includes o-ring removable cartridge for maintenance and leak prevention |
Frequently Asked Questions
Q: What models is the UE H-2708-AC321 compatible with?
A: The UE H-2708-AC321 is compatible with Uline manual pallet jack models H-2708, H-2900, H-3045, H-5387, H-7504, H-6710, H-8921.
Q: What is the UE H-2708-AC321 used for?
A: The UE H-2708-AC321 is a slip-in hydraulic pressure relief component designed to regulate and release excess hydraulic pressure in the pump assembly. It prevents over-pressurization and protects the hydraulic system from damage.
Q: Does the UE H-2708-AC321 include sealing components?
A: Yes. The UE H-2708-AC321 includes a removable o-ring seal that is critical for preventing internal hydraulic fluid leaks. The o-ring can be serviced separately during routine maintenance if fluid leakage occurs.
Q: What material is the UE H-2708-AC321 made from?
A: The UE H-2708-AC321 is machined from hardened steel for strength and durability under continuous hydraulic pressure cycling. Steel construction resists wear from repeated pressure relief cycling over the life of the pallet jack.
Q: What symptoms indicate the UE H-2708-AC321 needs replacement?
A: If the hydraulic pump fails to build pressure, releases pressure too quickly or shows continuous fluid seeping from the pump cavity, the valve cartridge or o-ring may be faulty. Replace the cartridge if pressure regulation becomes inconsistent or leakage cannot be stopped.