41-73 - Self-operated excess pressure regulator

The Type 41-73 self-operated universal excess pressure regulator is a standard size regulator (1/2-4”) designed to work in all general industrial applications. An excess pressure reducing valve is used for controlling the upstream pressure (p1) to an adjusted set point. An excess pressure reducing valve is designed to open when the upstream pressure rises above a set value.

These valves are self-operated in that the upstream pressure being controlled is tapped upstream of the valve and transmitted via a control line to the operating diaphragm of the Type 41-73 where it is converted into a positioning force.

• Nominal diameters: DN15 to DN100 (1/2" to 4")
• Pressure classes: PN16 to PN40 (Class 125 to 300)
• Materials: Cast iron, Spheroidal graphite iron, Cast Steel, Stainless Steel
• Temperature range: up to 350°C (up to 660°F)
• Set points range: 0.05 to 28 bar