Full Coupling (also known as a pipe joint) is a component used to connect two pipes together. It joins the pipes through methods such as welding, threading, flanging, or compression.
Specification
Type: ASME B16.11 Full Coupling.
Material: ASTM A105.
Pressure Rate: CL3000 (PN400).
Size: 3 Inch (DN80).
Standard: ASME B16.11.
Ends: Threaded.

Differences Between Clamps and Couplings
Clamps and couplings serve distinct purposes in pipeline systems, resulting in significant differences in their structure and operational principles:
1. Working Principle
Clamps: Primarily function to seal and support pipes. They secure the pipe's position and ensure sealing by compressing the pipe using bolts and sleeves, creating clamping force to tightly wrap and fix the pipe to supporting structures.
Couplings: Primarily function to connect pipes. They join two pipes via welding, threading, or compression, forming a seamless pipeline system.
2. Structure
Clamps: Have a relatively simple structure, typically consisting of a metal ring with components like bolts, nuts, and sleeves.
Couplings: Are more complex, featuring two ports and a central connecting section. The shape and size of the connecting part vary based on practical needs to link two pipes.
3. Application Scenarios
Clamps: Suitable for pipeline systems with lower connection requirements, such as low-pressure pipes or agricultural/farming pipelines.
Couplings: Widely used in harsh environments (high pressure, high temperature, corrosive conditions) where robust connections are critical.

