The Type 41-73 self-operated universal excess pressure regulator is a standard size regulator (1/2" - 4") designed to work with in all general industrial applications. An excess pressure valve is used to control the upstream pressure (p1) to an adjusted set point. The design of an excess pressure regulator valve is to open when the upstream pressure rises above the 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.
Set Point Range: 0.75 to 400psi (0.05 to 28bar)
Size: 1/2" to 4"
ANSI Class: 125 to 300
Temperature Range: 15 to 660oF (-10 to 350oC)
FEATURES & BENEFITS
Low-maintenance proportional regulator requiring no auxiliary energy
Frictionless plug stem seal with stainless steel bellows
Wide set point range and easy set point adjustment over a nut
Exchangeable actuator and positioning springs
Spring-loaded, single-seated valve with upstream and downstream pressure balancing by a stainless steel bellows
Soft-seated plug for better shut-off performance
Low noise standard plug and special versions with Flow Divider 1 and 3
All wetted parts are free of non-ferrous metal
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