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Heavy-Duty Hydraulic Dual-Line Reversing Valve

Operating a massive dual-line lubrication system across a sprawling industrial plant requires a robust director. The Heavy-Duty Hydraulic Dual-Line Reversing Valve is installed immediately after the main heavy-duty pump. Its sole purpose is to direct the flow of highly pressurized grease into Main Line 1, while simultaneously opening Main Line 2 to vent back into the reservoir. Once the system reaches peak pressure, the valve mechanically or electrically "reverses," sending the grease down Line 2 and venting Line 1, causing all downstream distributors to actuate.

Key Advantages & Benefits:

  • Automated Alternation: Seamlessly manages the complex pressure-and-vent cycles required by dual-line distributors.
  • High Flow Capacity: Engineered with large internal galleries to handle massive volumes of thick grease without severe pressure drops.
  • Adjustable Pressure Settings: Features integrated pressure control to dictate exactly when the change-over occurs.
  • Extreme Durability: Forged from high-strength steel to survive the brutal environments of heavy manufacturing.

Versatile Applications:

  • Continuous casting machines in steel mills
  • Rotary kilns in cement plants
  • Large-scale port cranes and unloaders
  • Power plant turbine lubrication

Frequently Asked Questions (FAQ):

  • Q: Are these valves mechanically or electrically operated? A: We offer both. Mechanical reversing valves switch over automatically based entirely on internal fluid pressure, while electrical models use solenoids controlled by a PLC for highly customized timing.
  • Q: How do I know if the valve is functioning correctly? A: Most models are equipped with visible indicator pins or optional micro-switches that signal to the control room every time a successful reversal is completed.

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FAQ

What aluminum alloys do you use to make motorcycle engine cases?

We mainly use high-performance aluminum alloys such as ADC12 and A356. The ADC12 is ideal for complex shapes such as side covers due to its excellent flow properties, while the A356 is the first choice for structural parts such as crankboxes that require excellent strength and elongation. We use a spectrometer to confirm the composition of each melt to ensure material stability.

How to ensure the tightness of the engine cover and prevent oil leaks?

Preventing leaks is the core standard we ensure. We control internal density through precise high or low pressure casting parameters. After casting, we perform precision CNC machining on the sealing surfaces and perform pneumatic leak tests on the oil passages and water passages to ensure zero leaks in the assembly.

How long is the delivery lead time for OEM motorcycle engine covers

For new OEM projects, the lead time from mold design to T1 sample delivery is typically 35-50 days. Once samples are approved, our capacity of 5000 tons per year allows us to adjust mass production plans to meet your specific delivery deadlines

What surface polishing options do you provide for motorcycle engine case covers?

Our process includes Shot Blasting and vibration deburring to achieve a clean, matte appearance. At the same time, we can also prepare powder coated or painted surfaces based on the aesthetic requirements of your brand.

Application Background and Use Scenario

Heat Pipe R&D and Sample Preparation


Heat pipe development requires stable and repeatable sample-level processing before entering mass production. During R&D stages, engineers need precise control over heating, degassing, and welding preparation to verify product structure and process feasibility. This equipment is designed to support such sample preparation tasks under controlled conditions.


Process Validation Before Mass Manufacturing


Before scaling up to full production lines, manufacturers often need to confirm welding parameters, heating lengths, and degassing performance. This machine provides a practical platform for process validation, helping reduce risks during later mass production deployment.


Integrated Heating and Degassing Process


The heating process is controlled by both temperature and time, allowing operators to set parameters according to different pipe diameters and material requirements. This helps maintain consistent thermal conditions during sample processing.