“Screwed flanges, also known as threaded flanges, are a type of flange used to connect pipes, valves, or other equipment with threaded connections. These flanges have internal threads, allowing them to be screwed onto the external threads of pipes or fittings.
Here’s some information about pipe screwed flanges:
Usage: Screwed flanges are commonly used in low-pressure and non-critical applications, especially in small-diameter piping systems. They are often used for plumbing, water supply, and industrial processes where the pressure is relatively low.
Installation: To install a screwed flange, the external threads of the pipe or fitting must match the internal threads of the flange. The flange is then screwed onto the pipe until it forms a tight seal.
Sealing: To ensure a leak-free connection, it is essential to use a sealing material like a gasket or thread sealant (e.g., Teflon tape) between the male and female threads.
Limitations: Screwed flanges are not recommended for high-pressure applications due to their limited strength compared to other types of flanges like weld neck or slip-on flanges. They are also more prone to vibration-induced loosening, which can lead to leaks.
Material: Screwed flanges are typically made from materials such as carbon steel, stainless steel, or other alloyed materials to suit the specific requirements of the application.
Standard: There are several international standards for screwed flanges, such as ANSI B16.5 (American National Standards Institute), ASME B16.5 (American Society of Mechanical Engineers), and BS EN 1092-1 (British/European standard).
Remember that the choice of flange type depends on the application, operating conditions, and the specific requirements of the system. For critical or high-pressure applications, other types of flanges like weld neck or slip-on flanges may be more suitable. Always consult with a professional or engineer to determine the best flange type for your specific needs.”