Changsha Xionglang International Trade Co., Ltd.
| Delivery Time | Available for immediate delivery |
| Payment Terms | T/T,Western Union |
| Supply Ability | 1-10000pcs |
| Packaging Details | Cardboard packaging |
| Brand Name | Sany |
| Model Number | 150688000156 |
| Place of Origin | China |
| Certification | ISO9001, CE, Material Test Report |
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Product Specification
| Delivery Time | Available for immediate delivery | Payment Terms | T/T,Western Union |
| Supply Ability | 1-10000pcs | Packaging Details | Cardboard packaging |
| Brand Name | Sany | Model Number | 150688000156 |
| Place of Origin | China | Certification | ISO9001, CE, Material Test Report |
HVME400-070000 Overload Safety Valve (Port Overflow Valve)
Hengli Part Number: HVME400-070000｜02.02.09.00089
Sany Material Code: 150688000156
Compatible Valve Body: Hengli HVME400 Main Control Valve (Sany 150601080024A)
I. Compatible Machine Models
SY365H, SY375H, SY395H, SY485H (Dedicated to National IV HVME400 Distributor Valve; cannot replace Kawasaki KMX32 overload valve)
II. Parameters and Installation
1. Original Factory Set Pressure: 35.5 MPa (355 bar), single-action overload protection, higher than system main relief pressure of 32.5 MPa
2. Installation Location: Plug-in holes on the side of each action valve plate (independent overload for boom/arm/bucket/rotation), single-circuit action port safety overflow
3. Structure: Cartridge direct-acting overload safety valve, integrated assembly of pressure adjustment screw + conical valve + high-strength spring
III. Function (Single-Action Independent Protection)
1. Single-cylinder pressure buildup overload relief: When the boom is jammed or the bucket bites hard soil causing overpressure, this valve relieves pressure independently to protect the cylinder seals, cylinder barrel, and pipelines.
2. Differentiate from system main relief: The main relief controls the overall system pressure at 32.5 MPa, while this overload valve controls the peak pressure of a single actuator at 35.5 MPa. Hydraulic excavator actions with pressure buildup do not reduce system pressure.
3. Single-action weakness/relief corresponds only to the individual action, without affecting the full vehicle pressure.
IV. Common Faults
1. Valve spool scoring causing internal leakage: Single-action weakness, poor lifting, bucket lowering relief, with other actions normal.
2. Spring softening: Pressure fails to reach standard, leading to arm drop during heavy-load actions.
3. Sticking in normally open position: Corresponding action relieves pressure upon any load, with normal operation under no load.
V. Part Differentiation
- Original Factory Hengli: Valve body with engraved model number, factory preset to 35.5 MPa, stable for mining heavy-duty applications.
- Aftermarket: Prone to pressure drift, frequent cylinder pressure buildup leading to easy relief.
Company Details
Business Type:
Trading Company,Distributor/Wholesaler,Manufacturer,Agent,Importer,Exporter
Year Established:
2021
Total Annual:
8000000-22000000
Employee Number:
1~50
Ecer Certification：
Verified Supplier
Changsha Xionglang International Trade Co., Ltd. I. Company Profile Changsha Xionglang International Trade Co., Ltd. is a comprehensive enterprise focusing on the R&D, production and global trade of construction machinery parts. It specializes in core wearing parts for mainstream brand... Changsha Xionglang International Trade Co., Ltd. I. Company Profile Changsha Xionglang International Trade Co., Ltd. is a comprehensive enterprise focusing on the R&D, production and global trade of construction machinery parts. It specializes in core wearing parts for mainstream brand...
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