What Is A Tee Pipe？
The tee pipe is also called a T-type pipe because its structure is similar to the letter “T”. It diverts the fluid from the main pipe to two branch pipes to achieve diversion. The tee pipes can be made into three pipe openings of the same or different diameters according to your needs. The tee pipes is widely used in water supply, oil, natural gas and other scenarios.
Types of Tee Pipe
Tee pipe classification by connection method
- Flat welding tee: insert the pipe directly into the groove and weld it at the outside. If the pressure is relatively high, you can choose to weld both inside and outside. Flat welding tee has low cost and simple operation. However, the stress is concentrated at the weld, so it is only suitable for use in medium and low pressure and stable temperature environments.
- Butt welding tee: This welding method uses the pipe and the neck flange bevel butt joint, full penetration welding, high weld strength. High temperature and high pressure resistance, high sealing strength, suitable for high-position scenes with very harsh use environment.
- Threaded tee: This method does not require welding. Threads are processed on the flange and the outside of the pipe for threaded fixing. This method is suitable for small-diameter pipes and flammable and explosive environments where open flames are prohibited.
- Flange Tee: This method is easy to install and disassemble, and a large area will not be exposed to the medium. Only the parts that have been turned over need to be made of anti-corrosion materials.
- Sleeve Tee: Compression Tee is a three-way pipe fitting with a compression fitting at each end. Insert the pipe fitting and tighten it.
Tee pipe classification by flow direction
- Vertical diversion T-tube: According to the principle of fluid mechanics, the fluid is diverted vertically from the main pipeline into the branches on both sides.
- One-way drainage T-tube: This tube is a one-way drainage, usually used in medical equipment, to achieve bile drainage and bile duct support through one-way flow
Tee pipe classification by material
- Metal Tee: Such as stainless steel, carbon steel, copper, etc., suitable for high temperature and high pressure environments.
- Plastic Tee: Such as PVC, PE, etc., suitable for low temperature and low pressure environments, with strong corrosion resistance.
Tee pipe classification by use
- Water pipe Tee: Dedicated to the diversion of water systems.
- Gas Tee: Used in gas delivery systems.
- Chemical Tee: Suitable for the chemical industry, with good corrosion resistance.
How To Choose The Size Of The Tee?
Piping system parameters
- Nominal diameter: The main branch and branch of the tee pipe must match the installed pipe. It can be an equal-diameter tee or a customized reducing tee.
- Pressure bearing capacity: To determine the environmental pressure used by the tee pipe, select the wall thickness of the tee pipe according to the pressure. For high-pressure scenarios, you can choose steel pipes with a wall thickness of ≥3.0mm, and for low-pressure environments, you can choose plastic or stainless steel pipes with a wall thickness of 1.0-2.0mm.
Industry Standards
- Size standards: Steel must comply with GB/T12459, PVC must comply with GB/T10002.1, and stainless steel must comply with ISO4144.
- Installation and error specifications:: Flange connection tee bolt hole center distance error ≤ 1.6mm, socket type needs to ensure that the insertion depth is ≥ 1.5 times the pipe diameter
FAQs：
1. What should I pay attention to when installing a tee pipe?
Ensure the tightness, keep the threads, welding or gaskets intact to avoid leakage. And clean the impurities in the pipe to avoid blockage due to impurities.
2.What are the key points for daily maintenance of tee pipes?
Check whether there is medium leakage at the pipeline interface; apply anti-rust and anti-corrosion coating regularly; clean the sediment in the pipeline regularly; check the pressure of the tee pipe regularly and do not exceed the rated pressure.
