Guangzhou Qichao Machinery Parts Co., Ltd.
| Origin | China |
| Brand | ZVEZDA |
| Warranty | 6 Months Under Continuous Excavator Working Condition |
| Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T |
| Sample Service | Single Sample Available |
| Packaging Details | Neutral Packing/Branded Packaging |
| Delivery Time | 1–7 Working Days After Payment |
| Applicable Model | E320D Medium Excavator Main Hydraulic Pump Secondary Overload Protection |
| Place of Origin | CHINA |
| Model Number | E320D |
| Brand Name | ZVEZDA |
View Detail Information
Explore similar products
Hydraulic Main Pump Overload Cartridge Relief Valve OEM 171-0030 For E320C
ODM Cartridge Pressure Main Relief Valve PC200-8 E320B Assembly
Overload Auxiliary Cartridge Excavator Relief Valve Assembly For Pressure
Pneumatic Swing Buffer Excavator Relief Valve Cartridge Assembly For E307
Product Specification
| Origin | China | Brand | ZVEZDA |
| Warranty | 6 Months Under Continuous Excavator Working Condition | Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T | Sample Service | Single Sample Available |
| Packaging Details | Neutral Packing/Branded Packaging | Delivery Time | 1–7 Working Days After Payment |
| Applicable Model | E320D Medium Excavator Main Hydraulic Pump Secondary Overload Protection | Place of Origin | CHINA |
| Model Number | E320D | Brand Name | ZVEZDA |
| High Light | Hydraulic Excavator Relief Valve ，E320D Excavator Relief Valve ，Cartridge relief valve excavator | ||
Integrated solid anti-rust compact single-stage alloy steel cartridge body, single-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 330bar ultra-high pressure cycle durability test before delivery.
| Specification | Details |
|---|---|
| Brand | ZVEZDA |
| Applicable Model | E320D Medium Excavator Main Hydraulic Pump Secondary Overload Protection |
| Product Type | Compact Single-Stage Full Alloy Steel Hydraulic Main Circuit Auxiliary Overload Relief Cartridge Valve (Auxiliary Valve) |
| Rated Relief Pressure | 260–290 Bar Secondary System Standard Pressure |
| Instant Peak Bearing Pressure | 330 Bar |
| Sealing Material | Double-Layer HNBR High Pressure Oil Resistant O-Ring |
| Cartridge Material | Anti-Corrosion High Strength Alloy Steel Compact Single-Stage 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 Cartridge Valve + Spare HNBR Seal O-Rings |
| Sample Service | Single Sample Available With Relief Pressure Stability Test Report |
| 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 |
| KWE5K-30/G26D01 | KWE5K-30/G26D02 | KWE5K-30/G26D03 | KWE5K-30/G26D04 |
| A810201070110 | A810201070111 | A810201070112 | A810201070113 |
| 709-71-11302 | 709-71-11303 | 709-71-11304 | 709-71-11305 |
| 34E-08-22610 | 34E-08-22611 | 34E-08-22612 | 34E-08-22613 |
| 552-6330 | 552-6331 | 552-6332 | 552-6333 |
| SA7270-41260 | SA7270-41261 | SA7270-41262 | SA7270-41263 |
| 14538971 | 14538972 | 14538973 | 14538974 |
| 4659123 | 4659124 | 4659125 | 4659126 |
| R900961234 | R900961235 | R900961236 | R900961237 |
| B220401000880 | B220401000881 | B220401000882 | B220401000883 |
| 7012910 | 7012911 | 7012912 | 7012913 |
| 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 medium excavators fit ZVEZDA E320D auxiliary relief valve? A: Direct replacement for E320D medium excavators, standard compact single-stage 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 main valve fast wear after replacement? A: Fatigued pressure spring leads to drifted secondary relief pressure, replace complete ZVEZDA integrated compact auxiliary relief cartridge to restore standard secondary circuit pressure and share load for main valve. |
| Q3 | Q: Can this auxiliary relief valve replace swing relief valve or unloading valve? A: Not interchangeable. This medium-high pressure compact cartridge valve only undertakes secondary main circuit pressure sharing; swing relief valve controls independent swing branch pressure, unloading valve adjusts idle medium pressure, different medium, pressure range and working principle. |
| Q4 | Q: Core advantages of ZVEZDA E320D auxiliary relief valve? A: High strength alloy steel anti-wear compact spool, high fatigue resistant silicon manganese pressure spring, stable fixed secondary 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 E320D main hydraulic dual-stage 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...
Get in touch with us
Leave a Message, we will call you back quickly!