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The Oil Overflow Method of Pressure Relief Valve

The Oil Overflow Method of Pressure Relief Valve

2025-11-26

The Oil Overflow Method of Pressure Relief Valve

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The solenoid valves used in hydraulic lift valve

The solenoid valves used in hydraulic lift valve

2025-10-18

A brief introduction to the solenoid valves used in hydraulic lift valve

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Differences Between Relief Valves and Pressure-Reducing Valves

Differences Between Relief Valves and Pressure-Reducing Valves

2025-09-27

Differences Between Relief Valves and Pressure-Reducing Valves
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Understanding Pilot-Operated Relief Valves: Detailed Video Guide

Understanding Pilot-Operated Relief Valves: Detailed Video Guide

2025-09-19

How a Pilot-Operated Relief Valve Works (Video Teardown & Explanation)

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How to Disassemble a Hydraulic Balance Valve: A Practical Guide for Mechanics

How to Disassemble a Hydraulic Balance Valve: A Practical Guide for Mechanics

2025-08-21

In this vedio, we'll walk through a clear, step-by-step guide on balance valve disassembly.

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Ningbo Longerfa Hydraulic at bauma CHINA: Bringing Our Valves to the Global Stage

Ningbo Longerfa Hydraulic at bauma CHINA: Bringing Our Valves to the Global Stage

2025-08-21

Every two years, the construction machinery world gathers in Shanghai for one of the biggest events in the industry—bauma CHINA, the International Trade Fair for Construction Machinery, Building Material Machines, Mining Machines, and Construction Vehicles. For Ningbo Longerfa Hydraulic Co., Ltd., this event is more than just a trade show. It's an opportunity to meet our customers face-to-face, showcase our latest hydraulic solutions, and share our vision for the future of heavy machinery.

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How Hydraulic Valves in Excavators Ensure Smooth Operation

How Hydraulic Valves in Excavators Ensure Smooth Operation

2025-05-29

In the modern construction industry, excavators are the backbone of numerous critical operations—from trenching and demolition to material handling and grading. Their versatility and efficiency depend heavily on one essential system: hydraulics. Central to this system are hydraulic valves, the unsung heroes that regulate the flow and pressure of hydraulic fluid, allowing excavators to perform smooth, precise, and powerful movements.

As a leading manufacturer of threaded cartridge valves and construction machinery valves, Ningbo Longer Hydraulic Co., Ltd. is at the forefront of developing advanced valve technology that powers excavators and other heavy machinery around the globe.

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Discover the High-Performance 310-0395 Relief Valve for CAT320C – Now Available from Ningbo Longer Machinery

Discover the High-Performance 310-0395 Relief Valve for CAT320C – Now Available from Ningbo Longer Machinery

2025-05-29

Ningbo, China – Ningbo Longer Machinery Co., Ltd., a leading supplier of construction machinery spare parts, is proud to announce the continued availability and export of the 310-0395 Relief Valve, an essential hydraulic component designed for the CAT320C Caterpillar excavator. With growing global demand for reliable, high-performance spare parts, Ningbo Longer is positioned as a trusted partner for international buyers seeking OEM-quality products at competitive prices.

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How to Troubleshoot and Maintain Excavator Relief Valves

How to Troubleshoot and Maintain Excavator Relief Valves

2025-05-28

Excavators are indispensable machines in construction, mining, and various industrial operations across Southeast Asia. At the heart of every excavator’s hydraulic system lies a critical component: the hydraulic relief valve. This component plays a vital role in controlling system pressure and protecting the hydraulic circuit from damage caused by pressure overload. When a relief valve fails, the entire system can suffer — leading to costly downtime and repairs.

As a leading hydraulic valve manufacturer, NINGBO LONGERFA understands the importance of maintaining peak performance in your excavator’s hydraulic system. In this article, we will provide a comprehensive guide on how to troubleshoot and maintain excavator relief valves, helping you extend the life of your equipment and reduce unexpected breakdowns.

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Ningbo Longerfa Hydraulic Co., Ltd Unveils Premium 723-30-50101 Relief Valve for Komatsu PC120-6 Excavators

Ningbo Longerfa Hydraulic Co., Ltd Unveils Premium 723-30-50101 Relief Valve for Komatsu PC120-6 Excavators

2025-05-28

Boosting Excavator Performance and Reliability with High-Quality Hydraulic Solutions

Ningbo, China — Ningbo Longerfa Hydraulic Co., Ltd., a trusted name in the field of precision hydraulic components, is proud to announce the availability of the 723-30-50101 Relief Valve for the widely used Komatsu PC120-6 excavator. This latest offering underscores Longerfa's ongoing commitment to delivering durable, cost-effective, and OEM-comparable hydraulic parts to global heavy machinery markets.

As construction, mining, and infrastructure projects continue to demand higher equipment efficiency, the hydraulic system has emerged as a critical component determining overall performance. The 723-30-50101 relief valve plays a pivotal role in the Komatsu PC120-6’s hydraulic circuit by maintaining pressure levels within safe limits, protecting essential system components from overload and extending machine life.

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