Guangzhou Qichao Machinery Parts Co., Ltd.
| Warranty | 6 Months Under Continuous Excavator Working Condition |
| Delivery Time | 1–7 Working Days After Payment |
| Supply Ability | 1000PCS/MONTH |
| Payment Terms | T/T |
| Packaging | Neutral Carton Packing, No Brand Logo |
| Packaging Details | Neutral Packing/Branded Packaging |
| Brand | ZVEZDA |
| Made In | China |
| Sample Service | Single Sample Available |
| Place of Origin | CHINA |
| Model Number | E320C |
| Brand Name | ZVEZDA |
View Detail Information
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Product Specification
| Warranty | 6 Months Under Continuous Excavator Working Condition | Delivery Time | 1–7 Working Days After Payment |
| Supply Ability | 1000PCS/MONTH | Payment Terms | T/T |
| Packaging | Neutral Carton Packing, No Brand Logo | Packaging Details | Neutral Packing/Branded Packaging |
| Brand | ZVEZDA | Made In | China |
| Sample Service | Single Sample Available | Place of Origin | CHINA |
| Model Number | E320C | Brand Name | ZVEZDA |
| High Light | Auxiliary Excavator Relief Valve ，Excavator Relief Valve Assembly ，Excavator pressure reducing valve 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 300bar 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 | E320C 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 | 260–300 Bar Secondary System Standard Pressure |
| Instant Peak Bearing Pressure | 340 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 |
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| 702-22-06500 | 702-22-06501 | 11N6-18720 | 11N6-18721 |
| SA8230-26510 | SA8230-26511 | VOE14639781 | VOE14639782 |
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| B220401000920 | B220401000921 | B220401000922 | B220401000923 |
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| CASE-KRV10033 | CASE-KRV10034 | CASE-KRV10035 | CASE-KRV10036 |
| No. | Question & Answer |
|---|---|
| Q1 | Q: Which medium excavators fit ZVEZDA E320C auxiliary relief valve? A: Direct replacement for E320C 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 engine stall under heavy load after replacement? A: Fatigued pressure spring leads to drifted relief pressure, replace complete ZVEZDA integrated compact auxiliary relief cartridge to restore standard secondary circuit pressure and normal digging power. |
| Q3 | Q: Can this auxiliary relief valve replace swing relief valve or unloading valve? A: Not interchangeable. This high pressure compact cartridge valve is used for secondary main circuit overload protection; swing relief valve only controls swing branch hydraulic pressure, unloading valve adjusts idle medium pressure, different medium, pressure range and working principle. |
| Q4 | Q: Core advantages of ZVEZDA E320C auxiliary relief valve? A: High strength alloy steel anti-wear compact 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 E320C main hydraulic secondary 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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