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SHANTUI SL60W Wheel Loader -YJ375XD Torque Converter
SHANTUI SL60W Wheel Loader -YJ375XD Torque Converter
2025-07-05
SHANTUI SL60W Wheel Loader -Transmission Assembly
SHANTUI SL60W Wheel Loader -Transmission Assembly
2025-07-06

SHANTUI SL60W Wheel Loader Pressure Valve、Outlet Pressure Valve、Relief Valve

SHANTUI SL60W Wheel Loader -Pressure Valve、Outlet Pressure Valve、Relief Valve
SHANTUI SL60W Wheel Loader -Pressure Valve、Outlet Pressure Valve、Relief Valve
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What is the SHANTUI Pressure Valve、Outlet Pressure Valve、Relief Valve?

  • The Pressure Valve, Outlet Pressure Valve, and Relief Valve in the SHANTUI SL60W Wheel Loader form a critical trio of hydraulic control components, regulating fluid pressure to ensure smooth operation, prevent system overload, and protect vital machinery parts. These valves work in tandem to maintain optimal hydraulic performance during heavy lifting, digging, and material handling. Below is a detailed breakdown of their key components and functions:
  • 1. Core Valve Bodies & Structural Foundations
  • Valve Body: Each valve (pressure, outlet pressure, relief) features a rugged Valve Body cast from high-strength ductile iron, precision-machined to house internal components. The body includes ports for hydraulic fluid inlet/outlet and mounting surfaces, with threaded connections for secure integration into the loader’s hydraulic circuit.
  • Rectangular Joint: These metal joints (paired in the system) connect valve bodies to hydraulic lines, ensuring leak-free fluid transfer. Their flat sealing surfaces, paired with O-Rings (elastic polymer seals), prevent pressure loss even under high flow rates.
  • 2. Pressure Regulation Mechanisms
  • Spring & Valve: A durable steel Spring inside each valve provides the force to actuate the Valve (a precision-machined plunger or poppet). In the Pressure Valve, the spring adjusts to maintain a preset system pressure (typically 16-20 MPa), while the valve opens/closes to release excess fluid, stabilizing flow to hydraulic cylinders.
  • Position Shaft: Exclusive to the Relief Valve, this shaft guides the valve’s movement, ensuring precise response when pressure exceeds safe limits. It works with the spring to calibrate trigger points, preventing sudden pressure spikes that could damage hoses or pumps.
  • 3. Sealing & Fastening Components
  • Plug Screw: Threaded steel plugs seal unused ports in valve bodies, with Washer (galvanized steel) placed beneath to distribute clamping force and enhance sealing. Some plugs feature hexagonal heads for tool-free adjustment during maintenance.
  • Nut: Zinc-plated steel nuts secure valve bodies to the loader’s hydraulic manifold, paired with washers to prevent loosening from vibration. Double nuts (used in high-pressure zones) add redundancy, ensuring long-term stability.
  • O-Ring: Elastic rubber rings (NBR material) seal gaps between moving parts (e.g., valve and body), resisting hydraulic fluid degradation and high temperatures (-40°C to 120°C).
  • 4. Auxiliary & Monitoring Parts
  • Thermometer Joint: A threaded port on select valve bodies allows integration of a thermometer, enabling real-time monitoring of hydraulic fluid temperature to prevent overheating-related failures.
  • Outlet Pressure Valve Specifics: This valve includes a specialized spring and valve design to regulate fluid pressure at the hydraulic system’s outlet, ensuring consistent flow to downstream components like the torque converter or lift cylinders. Its Valve Body features larger ports to handle high-volume fluid discharge.
  • 5. Synergistic Functionality
  • Together, these valves safeguard the SHANTUI SL60W’s hydraulic system: The Pressure Valve maintains working pressure for efficient operation; the Outlet Pressure Valve stabilizes downstream flow; and the Relief Valve acts as a fail-safe, diverting excess fluid back to the reservoir when pressure spikes. Their shared components—such as durable valve bodies, precision springs, and reliable seals—ensure compatibility and synchronized performance, minimizing downtime and extending equipment life.
  • Each part undergoes rigorous testing for pressure resistance, corrosion tolerance, and wear, adhering to ISO standards for hydraulic components. Regular inspection of seals, springs, and fasteners ensures these valves continue to protect the loader’s hydraulic system, making them indispensable for safe, productive operations in demanding environments.

Product Parameters of SHANTUI Pressure Valve、Outlet Pressure Valve、Relief Valve？

NO PART NO. PART NAME Q’TY
1 YJ37508-2-6 Nut 1
2 JC10311-74,27 Washer 2
3 YJ37508-2-5 Nut 2
4 YJ37508-2-4 Plug Screw 1
5 YJ37508-2-1 Valve Body 11
6 YJ37508-2-3 Spring 1
7 YJ37508-2-2 Valve
8 GB1235-77，few 32X3.5 O-Ring 1
9 YJ37508-0-42 Rectangular Joint 1
10 YJ37508-0-41 Rectangular Joint 1
11 YJ37508-0-40 Thermometer Joint 1
12 YJ37508-4-4 Valve Body 1
13 YJ37508-4-3 Valve 1
14 YJ37508-4-2 Spring 1
15 JC10311-74,24 Washer 3
16 YJ37508-4-1 Plug Screw 1
17 YJ37508-1-7 Nut 1
18 YJ37508-1-6 Plug Screw 1
19 YJ37508-1-5 Position Shaft 1
20 YJ37508-1-3 Spring 1
21 YJ37508-1-4 Valve 1
22 YJ37508-1-2 Valve Body 1
23 YJ37508-1-1 Plug Screw 1
 

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