legines.com

Popularization of knowledge of pipe fittings

Release time:
Abstract:A pipe joint is a part that connects a pipeline or...

A pipe joint is a part that connects a pipeline or installs a pipeline on a hydraulic element in a hydraulic system. This is a general term for a connector that can be installed and removed in a fluid path. Mainly include: welding type, card sleeve type and flare type. There are the following classifications:

Hydraulics, hoses, high-pressure ball valves, quick-connect quick couplings, ferrule fittings, welded fittings, high-pressure hoses, transition fittings, ferrule fittings, three way fittings, non-standard pipes Joints, flared pipe joints, right-angle pipe joints, rotary pipe joints, quick joints, stainless steel pipe joints, copper joints.

A pipe joint is a connection tool between a pipe and a pipe, and it is a detachable connection point between a component and a pipe. It plays an indispensable and important role in pipe fittings. It is one of the two main components of hydraulic pipelines.

There are many types of pipe joint accessories. The commonly used pipe joints can be divided into two types: hard pipe joints and hose joints. If it is divided according to the connection method of pipe joints and pipes, there are three types of hard pipe joints, such as flared type, ferrule type and welded type, and hose joints are mainly crimped hose joints.

The connection methods of pipes and pipe joints in hydraulic systems are also different. The screw-in end of the pipe uses connection threads. With its own vertebral body screwing and tapered thread sealing operation, tapered threads are mainly used in low and medium pressure hydraulic systems. The sealing effect of fine thread is very good. It is often used in high pressure systems, but it requires the use of combination gaskets or O-rings to close the end face. Sometimes copper gaskets are also used. In thicker pipes, the main components are the joint body, nozzle and nut. In use, the joint body is embedded in the target, and the end face is sealed with the aforementioned gasket. The joint body and the tube are sealed with rubber, and sometimes a spherical seal is used.

As the pipe joint is a detachable connection element, it must meet the requirements of convenient disassembly in addition to the requirements of normal connection stability, strong sealing, reasonable size, small pressure loss, good process performance, etc. . Therefore, do not underestimate the small pipe joints, because only its existence can support the existence of the entire hydraulic system.