FA butt weld joint is a commonly used PFA pipe connection method, which is usually used to connect PFA pipe with other piping systems. It is made of PFA material, which connects PFA pipes with other pipes by means of hot melt butt welding. The fitting has good sealing properties and chemical corrosion properties, and is suitable for high temperature, high pressure and corrosive environments.
Ferrule butt welding joint is also a common PFA pipe connection method, which is often used to connect two PFA pipes. It is made of PFA material and is connected by inserting the ends of two pipes and clamping with a ferrule. Ferrule butt weld joints have a simple, reliable connection that is easy to install and remove, and is suitable for some smaller diameter pipe connections.
PFA butt welding head and ferrule butt welding head are two different joint connection methods, and the differences between them are as follows:
1. Connection: PFA adopts hot pressure welding method for the welding joint, and the ends of the two PFA pipes are connected together by heating and pressurization to form a tight and reliable joint. The ferrule butt welding joint adopts the ferrule connection, by inserting the PFA tube into the ferrule, and then fixing it through the clamping device to realize the connection of the joint.
2. Sealing performance: PFA has good sealing performance on the welding joint, because it is connected together by hot pressure welding, which can ensure that the pipes are tightly bonded and not easy to leak. The compression has a relatively poor sealing performance for the welded joint, as it is achieved by clamping the ferrule, which may cause the joint to leak if the ferrule is loose or damaged.
3. Applicable occasions: PFA butt welding joint is suitable for occasions that require high-purity fluid transmission, such as medical, semiconductor and pharmaceutical industries, because it can avoid leakage, pollution and other problems that may exist in traditional connection methods. The ferrule butt welding joint is suitable for general fluid transmission occasions, such as water pipes, gas cylinders, etc.
4. Connection strength: PFA has a high connection strength to the welding joint, because it connects the ends of the two pipes together by hot pressure welding, which has high connection strength and stability. The connection strength of the ferrule to the weld joint is relatively low, because it is achieved by ferrule clamping, and if the ferrule is loose or damaged, it may cause the joint connection to be unstable.
In general, PFA has its own characteristics and scope of use for welding joints and ferrule welding joints. In applications that require high-purity fluid transfer, such as in the medical, semiconductor, and pharmaceutical industries, PFA is a better choice for welding jointsIn general fluid transmission occasions, such as water pipes, gas cylinders, etc., the ferrule may be more suitable for welding joints.