Sanitary Back Pressure Regulator

Equilibar Hygienic Back Pressure Regulators

Equilibar is proud to introduce a series of back pressure regulators with hygienic features for the BioPharma and industrial applications.

They offer advantages for applications such as liquid product blending for consumer and body care products where excellent low flow control can be challenging.

These regulators are made of SS316L and can be fitted with USP Class VI diaphragms. They offer crevice-free design, and in certain orientations are fully drainable.

Request a Quote Download Brochure

Liquid Blending Applications

The schematic below shows a typical application for the 1/2″ EB1FD4. Performance of positive displacement pumps can be improved, especially in low viscosity applications, by the addition of a precision back pressure regulator. The Equilibar’s unique ability to control pressure at extremely low flow rates offers benefits for the liquid blending of consumer household and beauty products.

schematic showing the Equilibar back pressure regulator with a metering pump<br /><br /> and positive displacement pump in a liquid product blending application

The 3/4″ FDO6 sanitary back pressure regulator incorporates is shown with the optional set-point regulator for manually controlling the set-point. For computer automation, many clients use an electronic pressure regulator.

Equilibar EB1FD4 Hygienic Back Pressure Regulator

The Equilibar® FD Series provides sanitary clamps and crevice-free and drainable construction for industrial applications requiring hygienic properties (  details)

Equilibar EB8FD16 Hygienic Back Pressure Regulator

2″ FDO16 sanitary back pressure regulator shown with optional tube stubs for welding at customer site.

Product Details

Type Photo

Std. Pressure Range





stainless steel Equilibar Precision Pressure Regulator 0 – 100 psig / 7 bar(g) 1/2″ tri-clamp Comes with inner tube diameter 0.25″ (6mm) / 0.4″ (10mm)



stainless steel Equilibar Precision Pressure Regulator 0 – 150 psig / 7 bar(g) 1/2″ tri-clamp Angle design (side entry, bottom outlet.



1 inch stainless hygienic back pressure regulator 0 – 100 psig / 7 bar(g) 1″ tri-clamp (DIN 25)Tri-clamp or tube stub Cv = 8.0



stainless steel Equilibar Precision Pressure Regulator Shown with optional tube stub outlet 0 – 100 psig / (7 bar(g) 1.5″ tri-clampTri-clamp or tube stub Cv = 9.1



0 – 100 psig / 7 bar(g) 2″ tri-clamp (DIN 50)Tri-clamp or tube stub Cv = 19



stainless steel Equilibar Precision Pressure Regulator 0 – 100 psig / 7 bar(g) 1″ tri-clamp inlet Angle configuration (outlet on bottom)Option: Two inlets for straight flow-through

Request a Quote Download Brochure

Learn more about our back pressure regulator  technology and how it works.

Contact one of our Applications Engineers to help select the perfect back pressure regulator for your fuel cell application.

Equilibar News

Schematic of pressure control for product filling machine

Application Spotlight: Sanitary Product Filling

We’re looking forward to the upcoming InterPhex BioPharma trade show with this spotlight on Equilibar’s FD Series of sanitary back pressure regulators. These specialty regulators are well suited for a wide variety of sanitary applications, including product filling. Product filling typically involves the use of high speed filling machines to quickly fill bottles or containers […]

Read More