Check or pipeline valves are mounted at vessels, assembly units or pipelines with the aim to control different media (liquid, powder, etc.). As a rule pipeline valves are made of the following metals:
- Cast iron;
- Non-ferrous metals and various alloys.
Check valves are utilized to stop the medium flow:
- Cast iron gate valves (available at any factory that manufactures pipeline valves).
- Stop valve, which price is affected by the material and many other factors.
- Plug valve.
- Ball valves.
When you decide to purchase check valve (or f.e. cast iron dampers), t is advisable to remember about the major positive specifications of such equipment type:
- Contents – mainly stainless steel;
- Corrosion-proof property;
- Aggressive medium proof property (f.i. high pressure or temperature);
- Simple maintenance.
The following pipeline valves are utilized for connections:
- Steel flanges (price is affected by dimensions and case-hardening grade). Application range of these joint discs (rings) is considerably wide: starting from the oil industry up to power industry and space technology.
- Steel branches, which prices depend upon steel grade and pipeline valve type, as f.e. you might need to buy bent steel or sectional welded branches. Branches are used to connect bent parts of the pipeline. The most extensive sphere is industrial and power pipelines manufacture.
- Steel T-branch (price depends upon the possibility of usage at maximum pressure and temperature ranges). Anti-corrosion properties of T-branches are determined by the steel grade (carbon and low-alloy steel). T-branches are used in various conditions:
- Waterworks construction;
- At chemical factories.