Fuma tape is a thread-sealing fluoroplastic material that represents a green film produced by rolling a bundle. In appearance, the product is a snow-white flexible tape designed to seal the threads of pipe connections .
The material can be used in any conditions: at temperatures from minus 60 to plus 200
degrees Celsius and pressure up to 10 MPa. In some cases, it is permissible to use a tool for valves, which operates at a pressure of 40 MPa.
Depending on the operating conditions, there are three types of tape.
The first is produced in two varieties. It is used to seal systems that work with common industrial environments with structures that move concentrated and dilute acids and alkalis. This Fuma tape contains lubricant from petroleum jelly.
The second brand is designed to seal systems that work with potent oxidizing agents and solutions.
The third also withstands the influence of an aggressive environment and represents the edge parts of the tape of the first two grades, as well as a special SCR film.
In addition to the options described, the Fuma tape is produced, which is intended for retail. It is also used in everyday life.
There are rules for working with the material. Before installing the fittings that must be sealed, the threads must be thoroughly cleaned of rust and dirt. You can use gasoline for this. Fum tape or tow should be wound on the threads of the plug or valve along the thread from the beginning. Moreover, each subsequent turn should partially overlap the previous part of the material. To prevent the formation of wrinkles and wrinkles, which are folded when the plugs are screwed in and lead to loosening of the joints, the tape should be wound with a stretch.
To facilitate the work, it is necessary to use the material together with the roll, which is pressed against the threaded part, moving around the circumference. After winding is completed, the tape must be pressed firmly against the thread, scrolling slightly with your fingers. After creating the seal, you can proceed to screw the parts, such as a crane. This should happen with effort, the Fuma tape (or tow) is flexed and occupies the entire space between the threads of both components of the structure.
If the water fittings twist too simply, then tape should be rewound until the screwing takes place with effort. In this case, the material should squeeze slightly at the junction of the pipe and the crane. When everything is done, you should open the water and see if there is any leak.
A gas fum tape is also produced, which allows this type of joint to be sealed.
The advantage of the material is its elasticity. The Fuma tape is not subject to destruction, does not allow corrosion to form on the fastened parts. If it is necessary to change something in the water supply system, disassembling parts will not be difficult, which is difficult to say about seals created on the basis of flax or tow.