




High Quality Hydraulic Overflow Relief Valve For Xcmg Excavators Loaders Construction Machinery Part *******64/*******3-9150
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The *******64 / *******3-9150 Hydraulic Overflow Valve is a premium-quality, precision-calibrated safety component designed to regulate hydraulic system pressure in heavy-duty construction equipment. Installed in the main hydraulic circuit, this overflow relief valve protects sensitive components such as pumps, actuators, hoses, and control valves from damage caused by over-pressurization—ensuring both operational safety and system longevity.
Engineered to meet demanding industrial standards, this valve delivers exceptional performance in high-flow hydraulic environments, making it an ideal solution for excavators, wheel loaders, and material handling machinery working in harsh terrain.
Performance Advantages:
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Pressure Stability: Maintains consistent system pressure by discharging excess flow once it exceeds the calibrated threshold.
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Durable Build: Made of heat-treated alloy steel with precision-machined internals for high wear resistance and fatigue durability.
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Responsive Flow Control: Quick-reacting internal spool minimizes hydraulic shock and prevents cavitation.
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Long Service Life: Sealing surfaces are honed and surface-treated to withstand thousands of pressure cycles without leakage or drift.
Technical Features:
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Operating pressure range: up to 31.5 MPa (315 bar)
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Threaded standard BSP/NPT interface for direct installation
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Compact body size for limited-space hydraulic manifolds
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Maintenance-free design with factory-set cracking pressure
Cross-Compatible Equipment:Although primarily designed for XCMG excavators and wheel loaders, the valve’s standard pressure setting and port sizing allow it to be retrofitted to:
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Komatsu PC200-7 / WA380
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Hyundai R220LC
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Liugong 922E, 856H
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SDLG LG956F
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SEM 660D hydraulic circuits
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Custom hydraulic systems in mobile and fixed construction equipment
Typical Applications:
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Hydraulic pump relief systems
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Pilot pressure line protection
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Boom, arm, and bucket cylinder circuits
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Travel and swing motor loop regulation

Business Nature
Manufacturer
Year Established
2014
Country/Region
Ankara, Turkey
Main Products
Construction Machinery Equipment And Spare Parts...
Payment Terms
Cash, Credit Card (CC)
Hakan Spare Parts is one of Turkey’s leading companies in the field of construction machinery spare parts, backed by many years of experience in the heavy equipment industry. Today, at our modern facility spanning 14, 000 m² in Ostim, Ankara, we offer not only construction equipment sales but also spare parts supply, maintenance services, and technical consultancy — all under one roof. Hakan Spare Parts provides original and aftermarket spare parts for XCMG and many other construction equipment brands, with fast shipping directly from stock. Our spare parts, designed for heavy-duty performance, durability, and long service life, cover a wide range of construction machinery such as excavators, loaders, graders, rollers, backhoe loaders, and more. We stand out with our extensive stock, especially in the most in-demand categories such as hydraulic system components, engine parts, transmission units, filter groups, undercarriage parts, and cabin equipment. In addition to product sales, we support our customers with expert guidance on part selection, maintenance recommendations, and ongoing technical assistance. Hakan Spare Parts offers fast, reliable, and cost-effective solutions through a wide customer network, strong supply chain, and experienced team across Turkey. Since its establishment, Hakan Spare Parts has earned a solid reputation for reliability and quality in the industry. We continue to strengthen our leading position in the XCMG construction machinery and spare parts sector by closely following industry innovations and maintaining a strong focus on customer satisfaction.