Taps and fittings – a device installed on the pipelines, aggregates, containers and designed to control (disable, distribution, management, relief, mixing, ) the flow of work media (liquid, gas, gas-liquid, powder, slurry, etc.) by changing the area of the cross-section. Taps and fittings is characterized by two main parameters: the nominal inside diameter (nominal size) and conventional (nominal) pressure. Valves share the following types: Valves – valves designed to shut off the flow of the working environment with a certain integrity. Safety valves – valves are designed for automatic protection of equipment and pipelines from impermissible overpressure by relief of excess working environment. Control valves – fittings designed for control parameters of the working environment by changing the flow rate. Valves – valves, which combines the functions stop and control valves.
Feedback fittings – valves, designed to automatically prevent backflow of the working environment. Non-return valves – the reverse fixture, which can be carried out forced closure of valves. Irrevocable-controlled valves – reverse fixture, which can be carried out forcible opening, closing or restriction of the valve. Distribution and mixing valves – valves, designed to distribute the flow of the working environment in certain areas or for mixing flows. (drainage) tube fittings – valves, designed to reset the working environment of the tanks (tank), piping systems. fittings – valves are designed to separate working environments that are in different phase states. Trap – valves, removes condensate and does not miss or partially overlooking the superheated steam. Protective (Interrupting) fittings – valves, designed for automatic protection of equipment and pipelines against harmful or unintended process changes the settings or the direction of flow working environment, and to mute the stream.
Reduction (throttle) valve – The valve is designed to decrease (reduction) of the working pressure in the system by increasing the hydraulic resistance flow path. Control valves – valves designed to control the inflow of the working environment in the test equipment, instruments. Types of devices valves: valve – type mixer, which has locking or the valve is moved perpendicular to the flow of the working environment. Valve (valve) – type of fixture that has a locking or the valve is moved parallel to the flow of the working environment. Crane – type of reinforcement, which has a locking or regulatory element having the shape of a body of revolution or part thereof, is rotated around its own axis, arbitrarily placed in relation to the direction of flow of the working environment. Disc gate (valve, butterfly valve, sealed valve germoklapan) – type of fixture in which the locking and regulating element has the shape of the disk rotating around an axis perpendicular to or below the angle to the direction of flow of the working environment.