In order to connect joints or install plumbing equipment without resorting to welding, you can buy American cast iron - with or without coating.
Pros:
1. Strength, wear resistance and durability. Cast iron fittings (especially if we are talking about gray or black cast iron) are suitable for systems that operate under high loads.
2. Resistance to corrosion. This feature is especially characteristic of American galvanized women. Cast iron fittings are actively installed on water supply systems.
3. Technical attractiveness for installers. Self-installation available. However, there are also certain nuances, but more about them below.
Installation
To independently install pipe joints or connect any equipment through this fitting, a key is enough. A special wrench for American women, an open-end wrench or an adjustable wrench, will help. Which specific type of wrench to choose depends solely on the fitting itself. If we are dealing with classic American cast iron without coating, then the type of key is not of fundamental importance.
But for products coated with nickel, it makes sense to use a special key. It is also recommended to use it for American women, which are made of steel and nickel.
It is also important not to forget about the sealing material.
Variations are possible here:
- Tangit (thread).
- Flax + sealant.
- FUM tape.
- Sealing paste.
If you use impregnated threads or paste, then this is not just a seal, but a worthy prevention of corrosive damage.
At the same time, if you plan to use FUM tape, remember: it is not suitable for all fittings and plumbing equipment. If you have to deal with very sharp threads, then when tightening there is a risk of damaging the tape. It can easily split into fibers.
There are also dangers in using FUM tape in systems where there are constantly very high temperatures. At high temperatures, the fibers may begin to curl. Moreover! If there are still pressure drops in the system, voids will begin to form in the sealing layer. Therefore, FUM tape is an option more for low-pressure water supply systems and cold water.
As for the tandem of flax and sealant, there is the most fuss, but the result is very pleasing. The materials perfectly complement and support each other. That is why this type of sealing is still popular among many.
American cast iron: purpose, installation
