Socket Weld Flanges are flanges that are welded at the end and outside of the pipe by inserting the end of the pipe into the step of the flange ring. There are necked and non-necked. The necked pipe flange has good rigidity, small welding deformation and good sealing property.

Stainless steel is a kind of steel. Steel refers to steel which contains less than 2% carbon (C) and more than 2% iron. Alloy elements such as chromium (Cr), nickel (Ni), manganese (Mn), silicon (Si), titanium (Ti), molybdenum (Mo) are added to the steel during the smelting process to improve the performance of the steel and to make the steel corrosion resistant (i.e. not rusty), which is commonly referred to as stainless steel.

Reducing elbow is a pipe fitting used to connect two pipes with different diameters for turning. Reducing elbow is a pipe component with a design centerline radius of curvature that differs from the inner diameter of straight pipes at both ends. This allows it to connect pipes of different sizes in the piping system and provide smooth fluid passages at pipe turns. It is a production technology that uses a standard elbow blank to cut into a V-shaped elbow, and then applies pressure.

Threaded cap is a type of threaded pipe fittings, also known as plug. It is a high-pressure pipe fitting that is inserted on the pipe end to cover the pipe. It is used to close the pipe for the same purpose as pipe plug. It is formed by forging blank of round steel or steel ingot and then processed

The EN 1092-1 Standard for a single series of flanges specifies requirements for circular steel flanges in PN designations PN 2,5 to PN 400 andnominal sizes from DN 10 to DN 4000. This European Standard specifies the flange typesand their facings, dimensions, tolerances, threading, bolt sizes, flange jointing face surface finish, marking, materials, pressure/ temperature ratings and approximate flange masses.

Threaded Tee is a type of pipe joint, which is the most common threaded pipe fitting, and is also an important accessory in pipeline systems. Threaded tee has three ports, one inlet and two outlets; or two inlets and one outlet, with a T and Y shape. Depending on the outlet diameter, there are two types of pipe fittings: TS equal tee and TR reducing tee. The outer diameter of the three ports of an equal diameter tee is the same, while the main pipe connecting pipe size of a different diameter tee is the same. While the connecting pipe size of the branch pipe is smaller than the connecting pipe size of the main pipe. Used at the confluence of three identical or different pipelines. The main function of the tee is to change the direction of the fluid and divert the flow of the medium through it.