Pipe valve fitting is a product that combines the functions of the joint, plug, and stop valve into one. It can be used as a plug for water pressure test, which does not need to be removed after concealed burial. It can also be used as a connection between pipe joints and faucets or other water-using equipment. It can also be used as an automatic stop valve to facilitate the replacement or disassembly of wearing parts.
Function
In fluid piping systems, valves are control elements whose main functions include isolating equipment and piping systems, regulating flow, preventing backflow, and regulating and draining pressure. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil, liquid metal, and radioactive media.
Type
Gate valve: widely used to cut off the flow of media, with a simple structure, suitable for places with small installation space.
Globe valve : relies on stem pressure to make the disc sealing surface and seat closely fit, suitable for unidirectional medium flow.
Check valve: relies on the medium force to automatically open and close to prevent the medium from flowing back. It is divided into two types: lifting type and swing type.
Butterfly valve: compact structure, quick opening, and closing, suitable for occasions requiring frequent operation or limited space. Ball valve: controls the flow of fluid by rotating the valve stem, with the advantages of small size, lightweight, and easy operation.
How to choose the right Pipe valve fitting?
1. Clarify the purpose and working conditions of Pipe valve fitting: First, it is necessary to clarify the specific purpose of pipe valve fittings in the system, such as shutoff, regulation, check, etc. At the same time, understand the key parameters such as applicable media (such as water, steam, oil, corrosive media, etc.), working pressure, and working temperature
2. Determine the type and type of Pipe valve fitting : select the right type of valves according to the needs, such as closed valves (such as gate valves, globe valves), regulating valves (such as regulating valves, reducing valves), safety valves (such as safety valves, traps), etc. The specific types include gate valves, globe valves, ball valves, butterfly valves, etc. Each valve has its unique structure and application scenario .
3. Consider materials and sealing performance: Select appropriate valve body materials and sealing materials according to the properties of the medium (such as corrosiveness, temperature, pressure, etc.). Common materials include plastic, cast iron, cast steel, stainless steel, etc. Sealing performance is one of the important indicators of valves, and it is necessary to ensure that a good sealing effect is maintained under different working conditions.
4. Pay attention to the operation and control mode of pipe valve fitting: select manual, electric, pneumatic and other driving modes according to actual needs. For valves that need precise control, pay attention to parameters such as adjustment accuracy and response speed.
5. Check the appearance and quality: When purchasing, the valve surface should be free of defects such as sand holes and cracks; the electroplated or sprayed surface should have a uniform gloss without peeling, cracking, and other phenomena. Try to choose products with quality certification, such as ISO certification, CE certification, etc., to ensure reliable product quality.
