Mixing valves

diaphragm valve - butterfly valve in the form of an elastic membrane, moved along the axis of the flow in the saddle valve (Fig. 5). Diaphragm valves are particularly well suited to work in hostile environments, because they do not have the seal and movable metal parts are separated from the working environment diaphragm.

diaphragm valve

hose valve - ceiling flow rate through the pinches elastic (rubber) hose, inside of which is transportable operating environment (Fig. 6). The main advantages of hose valves: design simplicity, efficiency in the sludges and pulps (where most other types of valves is broken), resistance to corrosion and abrasion.

hose valve

Depending on the working environment and its parameters are divided into steam valve (for water and steam), energy, petroleum, sewage, ventilation, cryogenics, vacuum, tank.

By Material distinguish body parts of PEX fittings:

1) steel (carbon or stainless steel);
2) stainless steel;
3) titanium;
4) iron (cast iron);
5) Ductile iron;
6) non-ferrous metals;
7) PEXs;
8) ceramic (porcelain);
9) glass.

By their functional PEX fittings divided into the following classes:

valves designed for complete coverage of the flow in the pipeline;

Control Valves - to regulate the flow of the working environment in order to regulate the relevant process parameters (temperature, pressure, composition of materials involved in the process);

distribution and mixing valves used for the distribution of flow in certain directions;

safety valves - to protect the facilities serviced by the excessive pressure increase through the issuance of excessive amounts of the working environment;

safety valves designed to protect the equipment from accidental changes in the parameters of the working environment. In contrast to the protective, safety valves in case of emergency conditions is closed and disables serviced land than protects it from harmful influences;

fazorazdelitelnaya massorazdelitelnaya and PEX fittings designed for automatic separation of environments depending on their phase and state.