The Type 2405 self-operated pressure reducing regulator is used to control the pressure of flammable gases used as a source of energy, e.g. in boilers, driers, vaporizers, heat exchangers or industrial furnaces. Alternatively, it can control the compressed air supply in process engineering applications.

An additional application of the regulator is the pressure control of inert gas used for inerting or blanketing reaction or storage tanks to protect the product in the tank from oxidation, explosion or escaping. To achieve an economical consumption of the inert gas, its pressure must be controlled to always remain slightly higher than atmospheric pressure while the tank is being filled or emptied. A pressure reducing valve is used for controlling the downstream pressure (p2) to an adjusted set point. The design of a pressure reducing regulator valve is to close when the downstream pressure rises above a set value. These valves are self-operated in that the downstream pressure being controlled is tapped downstream of the valve and transmitted via a control line to the operating diaphragm of the Type 2405 where it is converted into a positioning force.

Datasheet