Advice 1: How to wind the tape FUM

Tape FUM grade 1 - thread PTFE tape. Nepecino is a film made of PTFE - 4D, manufactured by rolling harness. Appearance Fuma — thin elastic band in white. Tape designed for sealing threaded joints of pipelines of all materials operating in the temperature range from -60 to +200°C and pressures up to 9.8 MPa. Allowed the use of the tape for the valve operating at a pressure of 41.2 MPa.
How to wind the tape FUM
You will need
  • For the coiling of ribbon you will need Fuma: Fuma tape and a small physical effort.
Instruction
1
Depending on the application of the tape FUM produced in three grades:

grade 1 is the highest and first grade — for sealing systems with General type, as well as systems with strong aggressive media (concentrated and dilute solutions of acids and alkalis); contains lubrication — oil vaseline GOST 3164-78 — 17 to 20%;

mark 2 — for seal systems operating on oxygen and other strong oxidants; contains a lubricant;

mark 3 — for sealing systems with General type, as well as systems with strong, aggressive media (concentrated and dilute solutions of acids and alkalis); represents the marginal part of the tape FUM grades 1 and 2, as well as film SKL, made on the other 301-05-49-90.

In addition to these 3 brands issued ordinary feed for retail to ordinary consumers.

Before installing the valve with the seal tape FUM thoroughly clean from dirt and rust their thread, then rinse with gasoline. The winding of the tape on the valve threads or plugs engage from the beginning in the course of the thread so that subsequent round partially (30-40%) overlaps the end of the tape. In order to exclude the tape FUM the appearance of wrinkles and folds, which when screwing the plugs are bent and lead to decompression of the joints, wrap the tape tension. To facilitate winding the tape on the threads to wrap the tape from the roll, and the roll is pressed against the threaded parts and to move it in a circle. Once you have wrapped the ribbon, press it with force to the thread, scrolling with your fingers. Then start to screw the screw-coupling any item, such as a crane. It needs a tight twist and the ribbon Fuma warming up and fills all the space between the two threads.
2
If you fasten the fittings screw easily, then pegmatite fly Fuma until then, until you start to accumulate heavily, so much so that even the key and then tighten it much, while tape Fuma needs to be squeezed a bit on a place of joining of valves and pipes. When you connect a ribbon Fuma all the necessary details, open water, look for leaks where. If you spot even a drop of water, then tighten some more this compound or pegmatite there is still a bit of tape.
3
Tape Fuma is good because if you decide that any change in their water utilities, to understand all the details there is no work. Tape Fuma soft and elastic, not subject to destruction, does not corrode the joined parts. If you have collected all the flax or pale paint that disassembly becomes a problem when you need to warm up, burn out items, processing them in various solvents.
Useful advice
Try to tape Fuma wound uniformly with a coil, if you just make a mistake, then it will begin to retract the pieces and not the whole ribbon.

Advice 2: How to wrap a tow

To achieve the tightness of any connections for years to come, you need to thread the butt elements to wind the required number of tow. In order to get the desired result, the winding of tow must be done correctly. And so as to wind the tow into thread:
How to wrap a tow
You will need
  • Tow, plumbing wrench, silicone
Instruction
1
Peel off a small strip of tow fibers from the main beam. Unfold it throughout its length. Next, twist fiber into rope. Rope size will depend on the depth of the thread.
How to wrap a tow
2
Take a plumbing wrench. Jaws grasp the threads that are going to wind the tow and light pressure on the key, apply a small notches on the thread. Thus, you will get a light roughness on the threads, thereby increasing the tenacity of her with a tow.
How to wrap a tow
3
Attach the end of flax fiber in the region of the thread. Next, evenly wrap in the opposite direction of tightening the nut, so that the following coil of tightly pressed previous. The number of winding should be in moderation. Note the wound on the other hand, it is important that there are no gaps.
How to wrap a tow
4
Once you have carried out the winding of tow, to protect her from the effects of water on top you need to apply the silicone. Next, evenly distribute it throughout the thread. While the silicone did not polymerizable, the connection can be twisted and check for leaks. For complete polymerization, you have 8-10 min.
How to wrap a tow
Note
Silicone for sealing gas connections cannot be used, as the gas eats it. For such compounds it is best to use special gas tape FUM.

Advice 3: How to wind linen thread

In order to achieve the strength and tightness of the connection, builders and plumbers use in their work of len or special flax tow which is wound on the threads of the butt of items. To really achieve the desired results, it is important to know how to wind the flax to thread correctly.
How to wind linen thread
You will need
  • - tow (len);
  • - silicone;
  • - plumbing key.
Instruction
1
Prepare the connecting elements, pre-cleaning them of rust, when suddenly this is available. For this you can use sandpaper medium grain. Removing the rust, be careful not to damage the threads.
2
Take the tow and separate from the main beam a small strip of fibers, which spread along the entire length. Fiber should be enough to get the connection turned out dense, but not tight, otherwise when the temperature rises, for example, in the pipe.lenia, the connection may just burst. Besides, the excess will be len givinglen of threaded connections during Assembly, and it almost certainly will cause new leaks.
3
Please note that the piping with the cut thread die stock, usually have a sufficiently rough surface, but the fittings with a smooth surface should be prepared. With plumbing key or triangular needle file, apply a small notch on top of the thread.
4
Take len, and attach the end of the fiber to the edge of the thread. Start to wind the tow in a reverse directionlinenAI from tightening the nut. Wound should be so that each subsequent round tightly pressed the previous. If the flax was not enough to cover the whole thread, take another beam.
5
On top of the fiber which is wound on the threads, apply a thin layer of silicone or special paste: this will allow you to achieve the tightness of the connection.
6
Twist the threaduntil the silicone has not yet polimerservice. Remember, before the end of this chemical reaction is 8-10 minutes. To cement the small amount of waste, which will remain outside the compound, no sealant will be good to keep linen. However, plumbing, working with metal pipes, sometimes just off the end of the beam. Doing it at home is not recommended.
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