CAT E200B Excavator Relief Valve Main Pump Overload Relief Cartridge
Price:
Please send mail or Whatsapp
MOQ:
1 Piece
Delivery Time:
1–7 Working Days After Payment
Brand:
ZVEZDA
Product Description
E200B Main Pump Overload Relief Cartridge Valve Assembly For E200B
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 350bar ultra-high pressure cycle durability test before delivery.
Specifications
| Specification | Details |
|---|---|
| Brand | ZVEZDA |
| Applicable Model | E200B Medium Excavator Main Hydraulic Pump |
| Product Type | Full Alloy Steel Hydraulic Main Circuit Overload Relief Cartridge Valve (Main Valve) |
| Rated Relief Pressure | 270–320 Bar Main System Standard Pressure |
| Instant Peak Bearing Pressure | 350 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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Question & Answer
| No. | Question & Answer |
|---|---|
| Q1 |
Q: Which medium excavators fit ZVEZDA E200B main relief valve?
A: Direct replacement for E200B 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 dedicated swing hydraulic pressure, unloading valve adjusts idle medium pressure, different medium, pressure range and working principle. |
| Q4 |
Q: Core advantages of ZVEZDA E200B 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 E200B main hydraulic overload protection system. |
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Company
Guangzhou Qichao Machinery Parts Co., Ltd.
Location
825-827, Zhuji International Machinery City, No.36 Zhuji Road, Tianhe District, Guangzhou, China
Contact Person
Sales