33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
33-99No. Mufu E Rd. Gulou District, Nanjing, China [email protected] | [email protected]
Home / Products / Hydraulic Pump / Nachi
Product Overview
This premium repair seal kit is engineered for Nachi PVK2B505 variable displacement axial piston hydraulic pumps, specially matched for mini excavator main pumps. It includes all essential shaft seals, O-rings, gaskets and backup rings for full pump overhaul.
Made of imported high-quality NBR and FKM fluororubber, the kit features excellent oil resistance, temperature resistance and wear resistance. It perfectly replaces original Nachi seals, solves common problems such as internal and external oil leakage, pressure loss and performance decline, and effectively prolongs pump service life under long-term heavy-duty operation of mini construction machinery.
Product Specifications
Item |
Detailed Parameter |
Product Name |
Nachi PVK2B505 Hydraulic Pump Seal Kit |
Applicable Model |
PVK2B505 (Displacement: 50.5cc/rev) |
Compatible Series |
Nachi PVK Series Piston Pump |
Main Material |
Imported NBR / FKM Fluororubber + Reinforced Backup Ring |
Max Working Pressure |
30MPa |
Working Temperature |
-10°C ~ 80°C |
Kit Contents |
Shaft seal, O-rings, gaskets, backup rings, full overhaul parts |
Cross Reference OEM No. |
(To be filled with actual OEM numbers) |
Net Weight |
Approximately 1.1kg |
Applicable System |
Variable displacement piston pump system for mini excavators |
Warranty |
12 Months |
Key Selling Points
1. 100% Exact OEM Replacement.Fully compatible with original Nachi PVK2B505 piston pumps. Matches standard OEM part numbers for PVK2B505 series. No modification required for direct installation, supporting fast on-site maintenance.
2. Premium Imported Sealing Material.Core sealing parts adopt high-performance FKM rubber and reinforced backup rings. The material is oil-proof, corrosion-resistant and aging-resistant, working stably in temperatures from -10°C to 80°C, adapting to complex outdoor construction environments.
3. Zero Leakage & High Pressure Durability.All components are strictly tested under 30MPa high pressure. It eliminates internal and external oil leakage, maintaining stable hydraulic pressure and consistent machine power output during long-time operation.
4. Complete All-in-One Repair Kit.Covers all sealing accessories needed for full pump maintenance. Complete supporting parts simplify purchasing procedures, shorten repair time and lower overall equipment operation and maintenance costs.
5. Strict Factory Quality Control.Every seal kit passes air tightness, high pressure and aging tests before delivery. It meets OEM standards and ensures reliable long-term industrial performance.
6. Application Scope.Suitable for Nachi PVK2B505 hydraulic pumps equipped on various 4–5 ton mini construction machinery:
• Hitachi mini excavators: ZX40U-2, ZX40U-3, ZX48U-3, ZX50U-2, ZX50U-3, ZX52U-3, ZX55, ZAX55
• Yuchai mini excavators: YC55, YC60
• John Deere 50D mini excavators
• Other domestic and imported 4–5 ton mini excavators
• Small engineering machinery with PVK series hydraulic pump system
Welcome to HOVOO, a Chinese seal factory. Production of PU, Rubber and PTFE seals. The seals include O-ring, piston seal, rod seal, Gray ring and gas seal.
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