Special products are used to connect separate parts of a single pipeline, or to connect stop valves or measuring instruments to it. Made of metal or plastic, they provide a secure connection and seal. Most often, flanges of a clamping and crimping structure are used in the connection. But what is their fundamental difference, and is it possible to replace one with another.
Crimp
The crimp design is rightfully considered the most versatile. It is used everywhere when welding is either impossible or undesirable for a number of reasons. In addition, the crimp flange allows a connection that is very easy to work with. And if necessary, individual parts of the pipes, for replacement or repair, are dismantled in a matter of minutes.
Clamping the nuts on steel studs, a special ring penetrates a certain distance into the pipe. Providing a reliable and tight connection, even for pipes with high pressure. Other advantages of the product include:
- Installation can be carried out by untrained personnel without special knowledge.
- The connection can be subsequently assembled and disassembled an unlimited number of times.
- Installation of utility networks takes place without the use of a welding machine, using a simple manual tool.
There are models of a crimp flange for soft polyethylene pipes with low pressure of liquid or air in communications. But, at the same time, strong physical exertion should not affect the pipe.
Pressure flange
Originally designed for pipes made of polyethylene for standard and low pressure. It is like an intermediate link when connecting a pipe with steel reinforcement, various metal containers, shut-off valves and meters. It has the appearance of a flat part and has the following characteristics:
- creates a fairly tight connection between plastic and metal;
- not afraid of significant temperature changes;
- can be used multiple times;
- no maintenance required;
- made of non-ferrous metals, or stainless steel, does not corrode.
In any case, the flange is such a reliable connection that it will never fail in daily operation, even in moments of strong hydraulic stress.
