Guangzhou Qichao Machinery Parts Co., Ltd.
| Mounting Form | Cartridge Insert Installation Inside Main Multi-Way Valve Body |
| Matching Model | DH150 Main Circuit Relief Valve |
| Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T |
| Warranty | 6 Months Under Continuous Excavator Working Condition |
| Packaging Details | Neutral Packing/Branded Packaging |
| Delivery Time | 1–7 Working Days After Payment |
| Made In | China |
| Sample Service | Single Sample Available |
| Place of Origin | CHINA |
| Model Number | DH150 DX150 |
| Brand Name | ZVEZDA |
View Detail Information
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Product Specification
| Mounting Form | Cartridge Insert Installation Inside Main Multi-Way Valve Body | Matching Model | DH150 Main Circuit Relief Valve |
| Supply Ability | 1000PCS/MONTH | Payment Terms | T/T |
| Warranty | 6 Months Under Continuous Excavator Working Condition | Packaging Details | Neutral Packing/Branded Packaging |
| Delivery Time | 1–7 Working Days After Payment | Made In | China |
| Sample Service | Single Sample Available | Place of Origin | CHINA |
| Model Number | DH150 DX150 | Brand Name | ZVEZDA |
| High Light | DH150 main pressure relief valve ，custom main pressure relief valve ，custom overload relief valve | ||
DH150 Main Pump Overload Relief Cartridge Valve Assembly For DH150 DX150
Integrated solid anti-rust alloy steel cartridge body, multi-stage double O-ring anti-leakage sealing structure, fully isolating high-pressure hydraulic oil penetration and metal impurity blockage. The overall surface adopts precision grinding anti-corrosion treatment, adapting to muddy, high-temperature construction site hydraulic environment, eliminating internal leakage and main circuit pressure loss failure. All core components are precision CNC machined domestically, finished with full 360bar ultra-high pressure cycle durability test before delivery.
| Specification | Details |
|---|---|
| Brand | ZVEZDA |
| Applicable Model | Doosan DH150, DX150 Medium Excavator Main Hydraulic Pump |
| Product Type | Full Alloy Steel Hydraulic Main Circuit Overload Relief Cartridge Valve (Auxiliary Valve) |
| Rated Relief Pressure | 280–330 Bar Main System Standard Pressure |
| Instant Peak Bearing Pressure | 360 Bar |
| Sealing Material | Double-Layer HNBR High Pressure Oil Resistant O-Ring |
| Cartridge Material | Anti-Corrosion High Strength Alloy Steel |
| Origin | China |
| Delivery Time | 1–7 Working Days After Payment |
| Warranty | 6 Months Under Continuous Excavator Working Condition |
| Packaging | Neutral Carton Packing, No Brand Logo |
| Supporting Accessories | Complete Cartridge Valve + Spare HNBR Seal O-Rings |
| Sample Service | Single Sample Available With Relief Pressure Stability Test Report |
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| No. | Question & Answer |
|---|---|
| Q1 | Q: Which Doosan medium excavators fit ZVEZDA DH150 main relief valve? A: Direct replacement for Doosan DH150 and DX150 medium excavators, standard cartridge size, directly insert into main valve block without modifying valve cavity. In stock, ship within 1–7 working days. |
| Q2 | Q: Excavator still weak digging and engine stall under heavy load after replacement? A: Fatigued pressure spring leads to drifted relief pressure, replace complete ZVEZDA integrated main relief cartridge to restore standard main circuit pressure and normal digging power. |
| Q3 | Q: Can this main relief valve replace swing relief valve or unloading valve? A: Not interchangeable. This high pressure hydraulic cartridge valve is used for main circuit overload protection; swing relief valve controls slewing dedicated hydraulic pressure, unloading valve adjusts idle medium pressure, different medium, pressure range and working principle. |
| Q4 | Q: Core advantages of ZVEZDA DH150 main relief valve? A: High strength alloy steel anti-wear spool, high fatigue resistant silicon manganese pressure spring, stable fixed relief pressure, double-layer HNBR high pressure anti-leakage sealing, full anti-rust precision ground cartridge body, OEM standard cartridge dimension direct replacement, neutral unbranded packaging, perfectly match DH150 main hydraulic overload protection system. |
Company Details
Business Type:
Manufacturer
Total Annual:
5000000-10000000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
Guangzhou Qichao Machinery Co., Ltd. Premier Factory Specializing in R&D & Production of Excavator Electrical Spare Parts Based in Zhuji International Machinery City,Tianhe District,Guanazhou. Our full product lineup covers solenoid valves, sensors, throttle motors, controllers flameout swi... Guangzhou Qichao Machinery Co., Ltd. Premier Factory Specializing in R&D & Production of Excavator Electrical Spare Parts Based in Zhuji International Machinery City,Tianhe District,Guanazhou. Our full product lineup covers solenoid valves, sensors, throttle motors, controllers flameout swi...
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