Product Description
Valu-Jack VJ 493 seal kit engineered for hydraulic pump maintenance on KD-5500 manual pallet jacks. Manufactured to SAE J200 standards with NBR material. Rated for hydraulic systems up to 3000 PSI and compatible with 1.125–1.375 inch bore diameters.
Compatibility: Fits pallet jacks made by Valu-Jack, model KD5500. SKU: VJ 493
Specifications
Hydraulic
| Seal Material | Nitrile rubber (NBR) for hydraulic fluid compatibility |
| Maximum System Pressure | Rated for hydraulic systems up to 3000 PSI |
| Operating Fluid | Mineral-based hydraulic oil meeting ISO VG 32–46 specification |
Material
| Seal Hardness | Nitrile rubber, Shore A55–70 durometer per ASTM D2240 |
Part Numbers
| Manufacturer Part Number | VJ 493 |
| Brand Part Number | VJ 493 |
| Compatible Equipment | Valu-Jack KD-5500 manual pallet jack hydraulic pump |
Performance
| Service Life | Designed for 20,000 pump cycles at rated system pressure |
Frequently Asked Questions
Q: What bore and rod sizes does the VJ 493 accommodate?
A: The VJ 493 seal kit is engineered for hydraulic cylinders with 1.125 to 1.375 inch bore diameters. Measure your cylinder bore carefully before ordering, as this kit is not compatible with smaller bores like the VJ 491 or VJ 492.
Q: What is the material and pressure rating of the VJ 493?
A: The VJ 493 is manufactured from nitrile rubber (NBR) to SAE J200 standards and is rated for hydraulic systems up to 3000 PSI. NBR material provides excellent compatibility with mineral hydraulic fluids and superior durability in high-pressure environments.
Q: Which Valu-Jack pallet jack models use the VJ 493?
A: The VJ 493 is compatible with Valu-Jack KD-5500 manual pallet jack hydraulic pump units. Confirm your equipment matches the KD-5500 model before purchasing.
Q: What fluid types work with the VJ 493 seals?
A: The VJ 493 seals are designed for mineral hydraulic fluid systems. Do not use with synthetic fluids or non-standard hydraulic media, as NBR material compatibility may be compromised.
Q: How long does the VJ 493 seal kit last?
A: Seal lifespan depends on usage frequency, operating pressure, and fluid cleanliness. In typical manual pallet jack applications, seals remain effective for 3 to 5 years. Replace sooner if leakage appears or pressure drops.