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WA370 3 WA470 3

709-10-52800 Hydraulic Unloading Valve for WA370-3 WA470-3 Loader

Optimize your wheel loader's hydraulic efficiency and protect the main pump with our premium brand-new Unloading Valve (Pressure Relief Valve). Engineered as a direct drop-in replacement for part number 709-10-52800, it ensures precise system pressure relief and fluid redirection for WA370-3, WA450-3, and WA470-3 heavy loaders.
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PC200 6溢流阀副炮

709-70-74103 Hydraulic Auxiliary Relief Valve for PC200-6 PC200-5

Protect your mid-sized excavator's specific working circuits and prevent localized over-pressurization with our premium brand-new Auxiliary (Secondary) Relief Valve. Engineered as a direct drop-in replacement for part number 709-70-74103, it ensures precise secondary pressure regulation for -5 and -6 series machines.
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PC200 6 7

723-40-51100 Hydraulic Selector & Relief Valve for PC200-6 PC200-7

Restore your mid-sized excavator's precise hydraulic switching and protect the main control block with our premium brand-new Selector & Safety Relief Valve. Engineered as a direct drop-in replacement for part number 723-40-51100, it ensures flawless circuit selection and system pressure regulation for -6 and -7 series machines.
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PC200 3泄压阀

709-70-51200 Hydraulic Main Pressure Relief Valve for PC200-3 PC220-3

Restore your classic excavator's maximum digging force and protect the main hydraulic pump with our premium brand-new Main Control Pressure Relief Valve. Engineered as a direct drop-in replacement for part number 709-70-51200, it ensures precise system pressure regulation for -3 series legendary machines.
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PC1250 7控油阀 封面图ps压缩版

709-90-72700 Main Oil Control Relief Valve for PC1250-7 PC800-7

Protect your massive 75-to-125-ton class mining excavator's main control block with our premium brand-new Main Oil Control Relief Valve. Engineered as a direct drop-in replacement for part number 709-90-72700, it ensures flawless maximum fluid pressure regulation and prevents catastrophic system over-pressurization during extreme open-pit mining operations.
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PC200 8动臂安全阀 泄压阀

723-40-91500 Hydraulic Boom Safety Relief Valve for PC200-8 PC300-8

Protect your mid-to-large excavator's lifting arm (boom) cylinders and main control block with our premium brand-new Boom Safety Relief Valve. Engineered as a direct drop-in replacement for part number 723-40-91500, it prevents catastrophic hydraulic line bursts and eliminates dangerous boom drift during heavy lifting operations.
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FAQ

Frequently Asked Questions

faq
We have 20 years of experience in the field of hydraulic components for excavators, bulldozers, and transfer machines. Our core advantages lie in our accumulated experience of 20 years focusing on hydraulic systems, hydraulic pipelines, and engine parts, and our familiarity with the adaptation needs and compliance standards of markets in Europe, America, and Southeast Asia; Independent Quality Control: Our own workshop enables full-process control from raw material processing to finished product assembly, avoiding the quality fluctuations of OEM models; Market Validation: Our products have been stably supplied to over 30 regions domestically and internationally, serving over 5000 repair shops and equipment suppliers, with a repurchase rate of 85%.
We are an integrated industrial and trading company specializing in hydraulic components. We have a core team focused on the R&D, production, and global trade of hydraulic system components for excavators, bulldozers, loaders, etc. Please feel free to contact us with any questions.
Providing any of the following information will complete an accurate compatibility check: ① Excavator brand + model + serial number ② Original part number (e.g., the number engraved on the nameplate)
We support compliant payment methods for independent websites, ensuring transaction security: Offline customized payment: For wire transfer (T/T) or Western Union, please contact our dedicated customer service representative to obtain your account information. We will provide payment vouchers simultaneously.
All hydraulic components come with a 6-month full machine warranty, covering performance failures caused by non-human factors (such as seal failure, accuracy deviations, etc.).
Quality control is implemented throughout the entire production chain, achieving "zero non-conforming products leaving the warehouse": A triple inspection mechanism: raw material incoming inspection (such as hardness testing of hydraulic valve materials), and random sampling during production (10% of each batch undergoing pressure testing).
We are happy to provide small-batch trial production services to verify product compatibility. We have flexible production lines capable of efficiently handling multi-variety orders. Once the trial order is successful, we will incorporate your product technical data into our production management system to ensure the quality stability and delivery reliability of subsequent large-scale supplies.
Yes. We have hydraulic system integration capabilities. From schematic design, component selection, valve block design and manufacturing to tank and piping manufacturing and system assembly testing, we can provide one-stop hydraulic power unit or system solutions to help you simplify your supply chain and optimize system performance.
As a source manufacturer, we possess end-to-end control capabilities, from design and R&D, raw material procurement, precision machining to assembly and testing. This allows us to offer more competitive costs and prices, achieve rapid and flexible customized production, and ensure full-process traceability and quality assurance for our products. You are not just buying a product, but acquiring a complete solution based on deep technological understanding.
We implement end-to-end quality control from raw material warehousing to finished product delivery. Key processes include: raw material spectral analysis, coordinate measuring machine (CMM) measurement of core components after CNC machining, cleanliness control during assembly, and final functional and durability testing. Each process has rigorous inspection records.
We would be very happy to welcome such offers. We maintain long-term partnerships with many large domestic and international repair companies and equipment remanufacturing plants. We can offer tiered bulk discounts and provide OEM/ODM manufacturing services tailored to your brand requirements. Please contact our international sales manager directly to discuss specific cooperation frameworks.
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