Guangzhou Qichao Machinery Parts Co., Ltd.
| Matching Model | DH500 Main Circuit Main Relief Valve |
| Payment Terms | T/T |
| Packaging | Neutral Carton Packing |
| Packaging Details | Neutral Packing/Branded Packaging |
| Warranty | 6 Months Under Continuous Excavator Working Condition |
| Made In | China |
| Supply Ability | 1000PCS/MONTH |
| Applicable Model | DH500 Large Excavator Main Hydraulic Pump |
| Sample Service | Single Sample Available With |
| Brand | ZVEZDA |
| Model Number | DH500 |
| Place of Origin | CHINA |
| Brand Name | ZVEZDA |
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Product Specification
| Matching Model | DH500 Main Circuit Main Relief Valve | Payment Terms | T/T |
| Packaging | Neutral Carton Packing | Packaging Details | Neutral Packing/Branded Packaging |
| Warranty | 6 Months Under Continuous Excavator Working Condition | Made In | China |
| Supply Ability | 1000PCS/MONTH | Applicable Model | DH500 Large Excavator Main Hydraulic Pump |
| Sample Service | Single Sample Available With | Brand | ZVEZDA |
| Model Number | DH500 | Place of Origin | CHINA |
| Brand Name | ZVEZDA | ||
| High Light | Doosan DH500 Excavator Relief Valve ，Overload Excavator Relief Valve ，Doosan DH500 relief cartridge | ||
Adopts high wear-resistant alloy steel spool and high fatigue-resistant silicon manganese pressure spring, stable calibrated relief pressure without drift under long-term 340bar high-pressure hydraulic oil and frequent heavy load impact. Effectively eliminate aging defects of original valves: relief failure, insufficient digging force, internal spool sticking, oil leakage at thread sealing surface. Stable mass production, sufficient stock for fast delivery.
| Specification | Details |
|---|---|
| Brand | ZVEZDA |
| Applicable Model | Doosan DH500 Large Excavator Main Hydraulic Pump |
| Product Type | Multi-section Split Full Alloy Steel Hydraulic Main Circuit Overload Relief Cartridge Valve (Main Valve) |
| Rated Relief Pressure | 300–340 Bar Main System Standard Pressure |
| Instant Peak Bearing Pressure | 370 Bar |
| Sealing Material | Double-Layer HNBR High Pressure Oil Resistant O-Ring |
| Cartridge Material | Anti-Corrosion High Strength Alloy Steel Split Multi-Section Body |
| 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 Split Cartridge Valve + Spare HNBR Seal O-Rings |
| Sample Service | Single Sample Available With Relief Pressure Stability Test Report |
| 2125-1226 | 21251226 | 4-02-901 | 402901 |
| XKBF-00743 | 21G013A | K1025678 | K1025679 |
| 1456892 | 1456893 | 7230987 | 7230988 |
| RV265-05501 | RV265-05502 | SV926501 | SV926502 |
| 2479631 | 2479632 | 31Q6-28910 | 31Q6-28911 |
| 049120-5260 | 049120-5261 | ND102360-1290 | ND102360-1291 |
| 702-22-06500 | 702-22-06501 | 11N6-18720 | 11N6-18721 |
| SA8230-26510 | SA8230-26511 | VOE14639781 | VOE14639782 |
| R900876521 | R900876522 | R900876523 | R900876524 |
| B220401000920 | B220401000921 | B220401000922 | B220401000923 |
| 569-4121 | 569-4122 | 569-4123 | 569-4124 |
| 258-9012 | 258-9013 | 258-9014 | 258-9015 |
| 14578962 | 14578963 | 14578964 | 14578965 |
| 723-45-61200 | 723-45-61201 | 723-45-61202 | 723-45-61203 |
| 31N8-19210 | 31N8-19211 | 31N8-19212 | 31N8-19213 |
| XJBN-00290 | XJBN-00291 | XJBN-00292 | XJBN-00293 |
| 8974561201 | 8974561202 | 8974561203 | 8974561204 |
| 9247811 | 9247812 | 9247813 | 9247814 |
| A810201070110 | A810201070111 | A810201070112 | A810201070113 |
| PC055-RV26501 | PC055-RV26502 | PC055-RV26503 | PC055-RV26504 |
| EC055-SV0921 | EC055-SV0922 | EC055-SV0923 | EC055-SV0924 |
| DH055-YF7130 | DH055-YF7131 | DH055-YF7132 | DH055-YF7133 |
| ZX060-REL881 | ZX060-REL882 | ZX060-REL883 | ZX060-REL884 |
| E306D-VL621 | E306D-VL622 | E306D-VL623 | E306D-VL624 |
| R060-9-OV721 | R060-9-OV722 | R060-9-OV723 | R060-9-OV724 |
| LG606-HV441 | LG606-HV442 | LG606-HV443 | LG606-HV444 |
| REX-R901267891 | REX-R901267892 | REX-R901267893 | REX-R901267894 |
| VOL-17439321 | VOL-17439322 | VOL-17439323 | VOL-17439324 |
| KOM-708-2L-06760 | KOM-708-2L-06761 | KOM-708-2L-06762 | KOM-708-2L-06763 |
| HYU-31N9-18230 | HYU-31N9-18231 | HYU-31N9-18232 | HYU-31N9-18233 |
| DOO-420-00366 | DOO-420-00367 | DOO-420-00368 | DOO-420-00369 |
| CAT-312-5770 | CAT-312-5771 | CAT-312-5772 | CAT-312-5773 |
| SAU-13063111 | SAU-13063112 | SAU-13063113 | SAU-13063114 |
| XCM-803010575 | XCM-803010576 | XCM-803010577 | XCM-803010578 |
| JCB-25/221011 | JCB-25/221012 | JCB-25/221013 | JCB-25/221014 |
| KOB-PSV2-70T | KOB-PSV2-71T | KOB-PSV2-72T | KOB-PSV2-73T |
| SUM-KBJ11400 | SUM-KBJ11401 | SUM-KBJ11402 | SUM-KBJ11403 |
| YAN-129945-49200 | YAN-129945-49201 | YAN-129945-49202 | YAN-129945-49203 |
| MTU-0055267801 | MTU-0055267802 | MTU-0055267803 | MTU-0055267804 |
| PER-1837893C91 | PER-1837893C92 | PER-1837893C93 | PER-1837893C94 |
| NAB-KXJ12568 | NAB-KXJ12569 | NAB-KXJ12570 | NAB-KXJ12571 |
| TOK-72224620 | TOK-72224621 | TOK-72224622 | TOK-72224623 |
| VAL-0810002000 | VAL-0810002001 | VAL-0810002002 | VAL-0810002003 |
| HUS-5924597 | HUS-5924598 | HUS-5924599 | HUS-5924600 |
| TER-2924621 | TER-2924622 | TER-2924623 | TER-2924624 |
| FIAT-7312866 | FIAT-7312867 | FIAT-7312868 | FIAT-7312869 |
| NEW-87429661 | NEW-87429662 | NEW-87429663 | NEW-87429664 |
| CASE-KRV10033 | CASE-KRV10034 | CASE-KRV10035 | CASE-KRV10036 |
| No. | Question & Answer |
|---|---|
| Q1 | Q: Which Doosan large excavators fit ZVEZDA DH500 main relief valve? A: Direct replacement for Doosan DH500 large excavators, standard split multi-section 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 split main relief cartridge to restore standard main circuit pressure and normal digging power. |
| Q3 | Q: Can this split main relief valve replace swing relief valve or unloading valve? A: Not interchangeable. This high pressure hydraulic split cartridge valve is used for main circuit overload protection; swing relief valve handles dedicated swing hydraulic pressure, unloading valve controls idle medium pressure, different medium, pressure range and working principle. |
| Q4 | Q: Core advantages of ZVEZDA DH500 main relief valve? A: High strength alloy steel anti-wear split multi-section 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 split cartridge body, OEM standard cartridge dimension direct replacement, neutral unbranded packaging, perfectly match DH500 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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