• SDO-product-with-body-385×385
  • SDO6-377×377
  • SDO4_401x401
  • SDO3-352×352

SDO single-use valve

Equilibar's back-pressure regulator is also available in a single use version. The patent-pending single-use valves in the Equilibar® SD series are made of stainless steel with USP Class VI polymers. The single-use valve body, which is made of HDPE, is inserted into the stainless valve body, which is locked with a wing nut for quick and easy installation. The Equilibar valves feature an ultra-sensitive diaphragm technology capable of controlling pressure with high precision over a wide range of flow and providing excellent regulation.
  • Made of stainless steel with USP Class VI polymers
  • Wide flow range with very precise regulation
  • Injection molded
  • ISO class 7 cleanroom assembly
  • Can be sterilized via gamma radiation up to 50 kGy
  • All products 100% leak tested
  • Simple and compact design
  • Wing-screw closure for easy installation
  • Documentation & traceability
Product Number:SDO

Equilibar designs, manufactures and tests patented back-pressure regulators, flow-control valves and vacuum regulators for the sanitary industry.

Since 2007, Equilibar has provided innovative flow-control technology for the most challenging applications in the world. Their pilot-pressure controlled back-pressure regulators have become known as the standard for precision.
Maximum pressure
4 bar(g)


This back-pressure regulator can be supplied with a documentation package which includes contains the following certificates. Feel free to contact us if you have any questions.

USP Class VI
Extractable & Leachable Data
Gamma Irradiation & Sterility Assurance Level SAL 10-6
TSE/BSE Statements


Do you have questions or need help finding the right component?

The back-pressure regulator from Equilibar is available in several different variants. Feel free to contact us for help in choosing the right back-pressure regulator.
Lasse Domar Nielsen
Product Manager SU & Cleanroom Team Lead
Peter Andersen
Internal Technical Sales

How to change an SDO single-use valve

In this video, Ryan Heffner, Single Use Technology Manager at Equilibar, explains how to replace an SDO single-use valve and shows how easy it is to set up the SDO back-pressure regulator for precise and instant control.

Contact a specialist for more information

Contact us if you need help, advice or want to hear more about our back-pressure regulator from Equilibar.

Jens Christian Jeppe