Slide-on fittings, also known as push-to-connect or push-fit fittings, are designed to connect pipes and tubes quickly and easily without the need for tools, soldering, or adhesives. They are commonly used in plumbing, HVAC, and pneumatic systems.
The core mechanism of slide-on fittings involves a simple yet effective design. Inside the fitting, there is a collet with metal teeth or grippers that hold the pipe or tube securely. When a pipe is inserted into the fitting, it passes through an O-ring, which creates a watertight or airtight seal. The collet's teeth grip the pipe, preventing it from being pulled out. This dual-action of sealing and gripping ensures a secure connection.
To install, the pipe or tube is simply pushed into the fitting until it reaches the stop. The fitting's design ensures that the pipe is inserted to the correct depth, which is crucial for maintaining the integrity of the seal. The O-ring compresses around the pipe, providing a leak-proof connection.
To disconnect, a release collar or ring on the fitting is pressed, which releases the grip of the collet's teeth, allowing the pipe to be easily removed. This feature makes slide-on fittings reusable and ideal for applications where frequent disassembly is required.
Slide-on fittings are compatible with various materials, including copper, PEX, CPVC, and some metals, making them versatile for different systems. They are available in various configurations, such as straight connectors, elbows, tees, and more, to accommodate different piping layouts.
Overall, slide-on fittings offer a convenient, reliable, and time-saving solution for connecting pipes and tubes, especially in situations where traditional methods are impractical or time-consuming.