Single Use Valve for Biopharmaceutical Applications -
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Single Use Valve for Biopharmaceutical Applications

Flow control and pressure control for single use BioPharma processes

  • Equilibar SDO6 single use back pressure regulator 2021
The Equilibar® back pressure regulator and flow control valve is now available in a sanitary single use design to accommodate the rapidly expanding single use technology (SUT) field in the biopharmaceutical industry. Single use systems (SUS) require lower cost components that can be sterilized through irradiation and disposed of after use. The patent pending Equilibar® SD series is manufactured using USP Class VI polymers and stainless steel. The polymer body and diaphragms are disposable and are inserted into a stainless steel support housing with wing nut closure for quick and easy assembly.

The Equilibar single use regulator features the same dome-loaded multiple orifice technology as all Equilibar patented products, delivering instantaneous control, frictionless operation and superior precision across exceptionally wide flow rate ranges. Its strengths are particularly well suited to control the transmembrane pressure in tangential flow filtration control applications or cross-flow filtration, and dP control in virus filtration systems.

The video demonstrates the inside workings and precision control of the Equilibar SDO

In addition to pressure control applications, the Equilibar SD can be used in on/off and flow control applications in single use processes. Potential advantages for on/off applications include the simple construction, ease of computer automation and low pressure drop.

SD Series Specifications:

Download a brochure or contact an Equilibar applications engineer for more information

Download Brochure

graph of flow curve for SDO6

Contact an Equilibar engineer to discuss your single use process application today.

Contact Equilibar if you are looking for custom configurations or sizes.

image of polycarbonate SD single use sanitary back pressure valve with stainless steel cap for sanitary

Equilibar SDO6 single use back pressure regulator 2021

Equilibar SDO6 Single Use Valve with 3/4″ ports

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Single Use Applications

exploded view of SDO single use back pressure regulator

Exploded view of SDO single use back pressure regulator


SDO dimension image

SDO4 single use back pressure regulator

Equilibar SDO4 single use back pressure regulator with 1/2″ ports

Equilibar single use back pressure regulator SDO3

Equilibar SDO3 back pressure regulator with 3/8″ ports

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Equilibar News
interpret 2021

Q&A with Ryan Heffner following INTERPHEX, the conference for biopharmaceutical engineering

Equilibar’s Ryan Heffner and Jeff Jennings recently returned from the INTERPHEX global conference in New York City.  This was the first major conference Equilibar has participated in since COVID arrived in early 2020. INTERPHEX focuses on the biopharmaceutical market, which has been in the spotlight for the past two years as multiple vaccines and medications Read More

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