1. Before buying a tee, you need to clarify your needs. Determine whether the medium to be transported is oil, water or other fluids, test the flow of the transport medium, and select the tee channel according to the transport medium and control flow.

2. Determine the valve model according to the valve body material, connection method, valve structure, temperature adjustment range and installation form. Common valve body materials include cast copper, T cast iron, stainless steel, etc. The connection form includes F flange, G pipe thread, ZG Tapered pipe threads, etc. The valve structure includes Z rotary valve type, H slide valve type, etc. According to the flow direction of the medium at the valve port, the combination or split design is adopted, which is easy to control.

3. The purpose of the combined tee and the split tee is different. The purpose of the combined three-way temperature control valve is to allow the passage of two fluids with different temperatures and to mix the fluids of the two temperatures at the valve port. The valve has two inlets B (high temperature) and C (low temperature), and one outlet A. The purpose of a 3-way thermostat is to divide the fluid in a pipe into two parts, and one of the two outlets is always open. This valve has two outlets B (bypass return) and C (split cooling), and one A inlet.

4. The three-way thermostat is very convenient, and the three-way thermostat is equivalent to a two-way valve and a three-way connection.

5. The tee can be installed at any turning point, the tee thermostat is a basic part of emergency manual equipment, and its configuration is easy to control.

6. A filter should be installed in front of the three-way thermostat in order to prevent the blocking and retention of the medium caused by the impurities stuck in the pipeline.