The Equilibar® dome loaded multi-orifice valve technology is now available in a single use format. The patent pending Equilibar® SD series back pressure regulators and flow control valves are 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.
How it Works
The SD regulator features Equilibar’s patented dome-loaded multiple orifice technology delivering instantaneous control, frictionless operation and superior precision across exceptionally wide flow rate ranges. The stainless steel housing is designed as a permanent part of the process and connects to a dome pilot pressure supply. The disposable body is sold in a pre-sterilized state and comes ready for sterilization up to 50 kGy.
Once assembled, simply apply a pressure to the pilot port in the dome of the Equilibar valve equal to the desired setpoint and the valve does the rest. This pilot pressure forces the upper flexible diaphragm down onto a field of orifices. A rise in inlet pressure lifts the diaphragm up to allow excess pressure to be relieved through the outlet orifices. Similarly, a loss of pressure at the inlet causes the diaphragm to be pushed closer to the orifices, restricting flow and rebuilding pressure at the inlet.
Its strengths are particularly well suited to control the transmembrane pressure in tangential flow filtration or cross-flow filtration, and dP control in virus filtration systems.
The video demonstrates the stability and precision control of the Equilibar single use back pressure regulator
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.
ApplicationsSingle Use Applications Brochure
Key Performance Advantages
- Ready for sterilization up to 50 kGy*
- Simple compact design
- Wing screw closure for easy assembly
- Stable across wide flow range
- Smooth computer operation
- Versatile – pressure or flow control
*SDO not sold as a sterile device.
SD Series Specifications
Download a brochure or contact an Equilibar applications engineer for more information