How to choose the appropriate dual-channel diverter reversing valve model and specifications based on fluid characteristics and system requirements?

1. In-depth understanding of fluid characteristics and their impact on valve selection

1.1 Media type and material compatibility

Corrosive fluids: When the fluid is corrosive, the material selection of the Dual Channel Diveriter Reversing Valve becomes particularly critical. Corrosion-resistant materials such as stainless steel, titanium alloy or specific alloys are the first choice. These materials can not only effectively resist the erosion of the fluid, but also extend the service life of the valve and reduce leakage and failure caused by corrosion.
High-temperature or low-temperature fluids: For high-temperature or low-temperature fluids, the valve material must be able to withstand extreme temperatures without deformation or failure. High-temperature valves usually use high-temperature resistant alloys or ceramic materials, while low-temperature valves may use special alloys or plastic materials to ensure sealing performance and structural integrity.
Viscous or solid particle fluids: For viscous fluids or fluids containing solid particles, the design of the valve needs to consider the fluidity of the fluid. The design of large flow area, low flow resistance and the use of wear-resistant materials help reduce the risk of fluid obstruction and valve wear.
1.2 Pressure and temperature range

Working pressure: The working pressure of the valve should be greater than or equal to the maximum working pressure in the system to ensure that the valve will not leak or be damaged under normal working conditions. Excessive pressure may cause valve seal failure or structural rupture.

Working temperature: The working temperature range of the valve should match the temperature of the fluid. Exceeding the temperature range may cause the performance of the valve material to deteriorate, such as aging of the sealing material and loss of elasticity, thereby affecting the sealing performance and operational reliability of the valve.

1.3 Flow characteristics

Flow requirements: Select the appropriate valve diameter according to the flow requirements of the system. Too small a diameter may cause fluid obstruction, increase pressure loss, and affect system performance; while too large a diameter may increase unnecessary costs and maintenance burdens.

Flow stability: For systems that require stable flow, such as precision machining or chemical reaction processes, it is crucial to select a valve with flow regulation function. This helps to ensure precise control of fluid flow and improve system stability and efficiency.

2. Selection steps
Clear requirements: First, clarify the specific requirements of the system for the dual-channel diverter reversing valve, including fluid characteristics, working pressure, temperature, flow requirements, control accuracy, reliability and compatibility.
Select the model: Select the appropriate valve model according to the needs. This involves the structure, material, sealing performance and control method of the valve.
Determine the specifications: Determine the diameter and pressure level of the valve according to the flow requirements and working pressure of the system.
Evaluate the performance: During the selection process, the performance parameters of the valve, such as leakage, pressure loss, response time, etc., should be evaluated to ensure that it meets the system requirements.
Consider the economy: Under the premise of meeting the performance requirements, consider the cost-effectiveness of the valve and choose a product with high cost performance.