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 / Danfoss
Product Overview
This high-performance repair seal kit is professionally engineered for Danfoss PV21 axial piston hydraulic pumps, a core model of Danfoss PV series heavy-duty hydraulic pumps widely applied in mobile machinery and industrial hydraulic systems. The full set includes complete shaft seals, O-rings, gaskets, backup rings and all matched sealing components, fully supporting comprehensive overhaul and routine maintenance of PV21 pumps.
Adopting imported premium NBR nitrile rubber and FKM fluororubber as core sealing materials, this seal kit delivers excellent oil resistance, high-pressure resistance, wear resistance and anti-aging performance. It serves as a perfect direct replacement for original Danfoss sealing parts. The kit effectively resolves typical failures such as external oil leakage, internal leakage and system pressure loss, and greatly extends the service life of PV21 hydraulic pumps under long-duration heavy-load, high-frequency operation and severe vibration working conditions.
Product Specifications
Item |
Detailed Parameter |
Product Name |
Danfoss PV21 Hydraulic Pump Seal Kit |
Applicable Model |
PV21 Axial Piston Hydraulic Pump |
Compatible Series |
Danfoss PV Series Piston Pump (PV20, PV21, PV22, PV23, PV24) |
Main Material |
Imported NBR / FKM Fluororubber + Reinforced PTFE Backup Ring |
Max Working Pressure |
35MPa (350bar), Peak Pressure: 40MPa (400bar) |
Working Temperature |
-25°C ~ 125°C |
Kit Contents |
Shaft seal, O-rings, flat gaskets, backup rings, control piston seals, full overhaul sealing accessories |
Cross Reference OEM No. |
(To be filled with actual OEM numbers) |
Net Weight |
Approximately 1.0kg |
Applicable System |
Open-circuit hydraulic system, mobile equipment drive system, industrial hydraulic power unit |
Warranty |
12 Months |
Certification |
ISO9001 Quality Management System Certified |
Key Selling Points
1. 100% Exact OEM Replacement.Fully compatible with original Danfoss PV21 hydraulic pumps and precisely matched with standard OEM dimensions. No cutting, grinding or extra modification is required. It enables quick direct installation for daily maintenance, field overhaul and emergency on-site repair, saving downtime and labor costs.
2. High-Grade Imported Sealing Materials.Core sealing components adopt high-performance FKM fluororubber and reinforced PTFE backup rings. The materials feature strong resistance to hydraulic oil corrosion, high temperature and fatigue deformation. It maintains stable and reliable sealing performance continuously within the temperature range of -25°C to 125°C, adapting to diverse harsh working environments.
3. Superior High Pressure & Vibration Resistance.All sealing parts have passed strict 35MPa high-pressure and long-cycle vibration simulation tests. It thoroughly eliminates internal and external leakage of the pump body, stabilizes hydraulic system pressure, and ensures steady flow output and reliable operation of PV21 pumps under heavy-load and high-vibration working conditions.
4. All-In-One Complete Repair Package.The kit is equipped with all sealing accessories required for full pump maintenance, including special seals for control assemblies. The integrated packaging unifies part management, simplifies inventory sorting, shortens overall repair cycle and reduces daily operation and maintenance costs of equipment.
5. Rigorous Factory Quality Inspection.Every seal kit undergoes air tightness test, high-pressure durability test and aging test before delivery. All products comply with original factory technical standards, providing long-term stable operation guarantee for engineering machinery and industrial equipment.
6. Extensive Application Scope.Specially designed for Danfoss PV21 hydraulic pumps, widely used on various heavy-duty engineering, mobile and industrial equipment:
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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