Sany Original Kawasaki Pressure Reducing Valve KDRDE5K-50/30C30-122, Sany Material Code: 60245189, suitable for multiple models of engineering machinery.

Original Kawasaki Proportional Pressure Reducing Valve (KDRDE5K-50/30C30-122 | Material Code: 60245189)
The Kawasaki KDRDE5K series threaded cartridge electromagnetic proportional pressure reducing valve is a dedicated component for Sany excavator main pump flow and pressure closed-loop control. It features genuine Japanese Kawasaki KPM components and is配套 with Sany original equipment.
Core Parameters
| Item | Details |
| Model | KDRDE5K-50/30C30-122 |
| Sany Material Code | 60245189 |
| Brand | Kawasaki (Sany Original Equipment) |
| Type | Direct Acting Sliding Spool, Threaded Cartridge, Electromagnetic Proportional Pressure Reducing Valve |
| Primary Side (Inlet) Max Pressure | 8.8 MPa (88 bar) |
| Secondary Side (Outlet) Rated Pressure | 3 MPa (30 bar) |
| Maximum Flow | 10 L/min |
| Power Supply | DC 24V (0–700mA current proportional control) |
| Installation | Threaded Cartridge (Compatible with KDRDE5K Series Valve Holes) |
| Coil Specification | C30 Waterproof Coil (Special for Engineering Machinery) |
| De-energized Logic | P→A open, A→T closed (Normally Closed type; adjustable pressure after energization) |
| Accuracy | ±0.5% FS |
| Protection Class | IP65 |
Model Breakdown
- KDRDE5K: Kawasaki Proportional Pressure Reducing Valve Series (K-type, de-energized A→T closed, normally closed logic)
- 50: Series specification code
- 30: Secondary side rated pressure of 3 MPa (30 bar)
- C30: Coil specification and plug type (waterproof engineering machinery version)
- 122: Sany customized version number, corresponding to material code 60245189
Applicable Scenarios and Models
- Applicable Excavators: Sany SY135/SY195/SY205/SY215/SY245/SY305/SY335/SY365 and other excavators equipped with Kawasaki main pumps.
- Installation Location: Main Pump Regulator, Hydraulic Control Module, Pilot Oil Circuit
- Typical Uses: Main Pump Flow/Pressure Proportional Control, Pilot Pressure Stepless Adjustment, Action Smoothness Control, Power Mode Switching
Key Differences and Fault Notes
1. Difference from KDRDE5KR Series:
- This model is KDRDE5K (normally closed), where A→T closes on de-energization, maintaining system pressure;
- The same series KDRDE5KR is normally open, where A→T opens and depressurizes on de-energization; their logics are opposite and cannot be directly interchanged.
2. Common Fault Manifestations:
- Erratic speed, abnormal main pump noise, unstable pressure, stalling;
- Main pump proportional valve fault codes reported, excavator unable to load normally.
3. Replacement Points:
- Must use the same model KDRDE5K-50/30C30-122, Sany material code 60245189;
- Ensure valve hole cleanliness during installation to avoid oil contamination causing spool sticking;
- Ensure proper waterproofing of the plug to prevent water damage to the coil.