Shijiazhuang Laiye Imort& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of 4p80 manual control valve in China, also supports customized service. If you're going to wholesale high quality 4p80 manual control valve made in China, welcome to get pricelist from our factory.
The P80 series monoblock directional control valve is a high-performance hydraulic component engineered for precision and reliability. Featuring a robust cast iron body and customizable spool options (including open center, O, Y, and P types), it delivers flexible flow control to meet diverse application needs. With a nominal flow rate of 80 L/min and maximum pressure ratings up to 315 bar, it excels in medium-to-high pressure hydraulic systems.
Equipped with integrated check valves for anti-backflow and adjustable relief valves for pressure regulation, the P80 ensures system safety and stability. Its compact monoblock design minimizes installation space and reduces leakage (≤6 cm³/min at 100 bar), while supporting multi-spool configurations (1–6 sections) for complex circuit control.
Compatible with manual, pneumatic, electro-hydraulic, and electric controls, it adapts to various automation scenarios. Operating within a wide temperature range (-40°C to +80°C) and suitable for mineral-based hydraulic oils (10–100 cSt viscosity), it performs reliably in harsh environments. Widely used in construction machinery, agriculture equipment, material handling, and industrial vehicles, the P80 valve balances durability, efficiency, and cost-effectiveness, making it an ideal choice for demanding hydraulic systems.
Production Process of P80 Hydraulic Valve
The production of the P80 hydraulic valve follows a strict, standardized process to ensure high precision and stability. It starts with raw material inspection, where high-strength cast iron and alloy steel parts are tested for material composition and mechanical properties.
Next, precision machining is carried out using CNC equipment, including milling, drilling, and grinding, to achieve tight tolerances for valve bodies, spools, and end covers. After machining, all components undergo deburring and cleaning to remove impurities.
Then comes assembly: workers install spools, springs, seals, and control parts in sequence, with torque control for each connection. Each assembled valve undergoes pressure testing, leakage detection, and function debugging under rated working pressure to verify performance.
Qualified products are painted, labeled, and packaged. Throughout the process, quality inspections are conducted at each stage to ensure the P80 valve meets industrial standards and customer requirement.
Professional Team
Our professional team is the core strength behind the high-quality P80 hydraulic valves. Composed of experienced hydraulic engineers, skilled technicians, and rigorous quality inspectors, the team boasts years of expertise in fluid control technology and valve manufacturing.
Our R&D staff continuously optimizes valve structure and performance to meet international industrial standards. Skilled workers ensure precise machining and assembly, while the QC team strictly monitors every production step.
With strong technical support and efficient teamwork, we consistently deliver reliable, stable, and high-performance hydraulic valves that satisfy global customer demands.
One-stop Hydraulic Valve Factory in China
We are a professional one-stop hydraulic valve manufacturer in China, integrating R&D, production, testing, sales and after-sales service. Focused on P80 series hydraulic valves, we provide stable quality, short lead times and customized solutions for global customers.
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