Dome-Loaded Pressure Reducing Regulators

The BD-Series, dome-loaded pressure reducing (and backpressure) regulators can be used to control most industrial gases and liquids. By supplying a reference pressure (with compressed air or other noble gas) to the dome of the BD-Series, the pressure of the process media can be accurately controlled to your process. The reference pressure can be supplied directly, with additional manual regulator or electronically.

Description

The BD-Series, dome-loaded pressure reducing (and backpressure) regulators can be used to control most industrial gases & liquids. By supplying a reference pressure (with compressed air or other noble gas) to the dome of the BD-Series. The pressure of the process media can be accurately controlled to your process. The reference pressure can be supplied directly, with additional manual regulator or electronically.

BD3:

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Additional information

BD3	Pressure Reducing, The simplest dome-loaded regulator or 1:1 "mimic" valve. Pressure is applied (loaded) to the dome of the BD3 to produce an output pressure (P2) equal to the loading pressure.
BD4	Pressure Reducing with Return Spring, The BD4 is the same configuration as the BD3 except, the BD4 implements a bottom return spring for proportional band control. This is used when a "closed-Loop" or feedback to the regulator is generated.
BD6	Dome-Loaded Back Pressure Regulator, When upstream (P1) pressure needs to be controlled, the BD6 is configured with back pressure trim to create a dome-loaded back pressure regulator
BD9	Dome-Loaded Pressure Reducing Regulator, The BD9 is employed when membrane compatibility or temperature is an issue. The BD9 offers the same Cv as the elastomeric version