A PPR (polypropylene random copolymer) coupling is a type of fitting that is used to connect two pipes made of PPR material. PPR is a type of plastic that is commonly used in plumbing and heating systems due to its durability, corrosion resistance, and high temperature resistance. PPR couplings are typically used to connect pipes of the same diameter, and are available in a range of sizes to fit different pipe diameters.

PPR couplings are typically made of polypropylene plastic and are designed to be easy to install. They are typically inserted into the ends of two PPR pipes and then secured with a special tool, such as a pipe cutter or clamp. The China PPR elbow for a tight and secure fit, ensuring a leak-free connection.

China PPR coupling are widely used in plumbing and heating systems, including in residential, commercial and industrial applications. They are also used in water supply systems, irrigation systems, and for hot and cold water distribution systems.

PPR couplings are known for their durability, resistance to high temperatures and chemicals and also for their ability to maintain their shape and strength under pressure. They are also lightweight, easy to install, and have a low thermal conductivity, which makes them energy efficient. 

A PPR (polypropylene random copolymer) elbow is a type of fitting that is used to change the direction of a PPR pipe in a plumbing or heating system. PPR elbows are used to make turns in pipes, typically at a 90-degree angle, to navigate around obstacles or to change the direction of the pipe. They are typically used to connect pipes of the same diameter, and are available in a range of sizes to fit different pipe diameters.

PPR elbows are typically made of polypropylene plastic and are designed to be easy to install. They are inserted into the ends of two PPR pipes at a 90-degree angle, and then secured with a special tool, such as a pipe cutter or clamp. The PPR material allows for a tight and secure fit, ensuring a leak-free connection.

PPR elbows are widely used in plumbing and heating systems, including in residential, commercial and industrial applications. They are also used in water supply systems, irrigation systems, and for hot and cold water distribution systems.

PPR elbows are known for their durability, resistance to high temperatures and chemicals and also for their ability to maintain their shape and strength under pressure. They are also lightweight, easy to install, and have a low thermal conductivity, which makes them energy efficient.