Guangzhou Qichao Machinery Parts Co., Ltd.
                                                                                                           
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China 320Bar Main Relief Pneumatic Cartridge Valve Assembly For Doosan DH55 Excavator for sale
China 320Bar Main Relief Pneumatic Cartridge Valve Assembly For Doosan DH55 Excavator for sale
China 320Bar Main Relief Pneumatic Cartridge Valve Assembly For Doosan DH55 Excavator for sale
China 320Bar Main Relief Pneumatic Cartridge Valve Assembly For Doosan DH55 Excavator for sale
China 320Bar Main Relief Pneumatic Cartridge Valve Assembly For Doosan DH55 Excavator for sale
China 320Bar Main Relief Pneumatic Cartridge Valve Assembly For Doosan DH55 Excavator for sale

320Bar Main Relief Pneumatic Cartridge Valve Assembly For Doosan DH55 Excavator

Price Negotiable
Price: Please send mail or Whatsapp
MOQ: 1 Piece
Delivery Time: 1–7 Working Days After Payment
Brand: ZVEZDA
Product Description
DH55 Swing Buffer Relief Cartridge Valve Assembly For DH55 DH60-7

It adopts wear-resistant alloy steel spool and high fatigue-resistant silicon manganese pressure spring.Integrated solid anti-rust alloy steel cartridge body, multi-stage double O-ring anti-leakage sealing structure.

Specification Details
Brand ZVEZDA
Applicable Model Doosan DH55, DH60-7 Mini Excavator Rotary Motor
Product Type Full Alloy Steel Hydraulic Slewing Overload Relief Cartridge Valve
Rated Relief Pressure 260–320 Bar Slewing 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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No. Question & Answer
Q1 Q: Which Doosan mini excavators fit ZVEZDA DH55 swing relief valve?
 
A: Direct replacement for Doosan DH55 and DH60-7 mini excavators, standard cartridge size, directly insert into swing motor without modifying valve cavity. In stock, ship within 1–7 working days.
Q2 Q: Excavator still has swing impact noise and weak slewing after replacement?
 
A: Fatigued pressure spring leads to drifted relief pressure, replace complete ZVEZDA integrated swing relief cartridge to restore standard swing buffer pressure and normal rotary power.
Q3 Q: Can this swing relief valve replace fuel rail pressure sensor or oil pressure switch?
 
A: Not interchangeable. This high pressure hydraulic cartridge valve is used for swing overload protection; fuel sensor detects diesel pressure, oil pressure switch is mechanical low pressure lubrication alarm part, different medium, pressure range and working principle.
Q4 Q: Core advantages of ZVEZDA DH55 swing 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 DH55/DH60-7 rotary hydraulic overload protection system.
 
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

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

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