In contrast to conventional pressure pressure – this is the greatest overpressure at which the the predetermined mode of valve operation, ie for a given operating temperature. Along with the mentioned main concepts in valve most often, the following terms, reflecting specific elements, objects and parameters of the products. Valve type – classification unit, which characterizes the interaction of the moving element gate (closing) with the flow of the working environment and determining key design features of valves. For example, valve, valve, etc. Type of valves – classification unit, which characterizes the pipeline valves. For example, valves, regulatory, etc.

Standard size valves – construction of valves, regulated by the port and the nominal pressure and the designation of the group main design document (the main version of the product). Luminaires – the design of one of the types of valves, regulated, except for a conditional pass and the nominal pressure, variable-data: the material of main parts, connection to the pipeline, control type, and others about what information is contained in one group or basic design document. Execution corresponds to a specific code of okp. Working environment – gaseous (steam) liquid or bulk solids, in some cases two-phase, being transported by pipeline, maintained by reinforcement. External (ambient) environment – the air or other gas that surrounds the armature. The Management Environment – liquid or gas (steam), used as the working fluid in valve actuators. Command medium – liquid or gas used to transmit command signals to the valve actuator. Absolute pressure (pabs) – pressure measured taking into account the atmospheric pressure.