About the FDO12 series back pressure regulator

Cv: 1·E-2 to 12  |  Max. Temperature: 150°C  |  Max. Pressure: 10 barg (150 PSI)


The FDO12 is a sanitary back pressure regulator. 1.5” sanitary Tri-Clamp connections are standard on these devices. With a Flow Coefficient (Cv) of 12, this unit can comfortably process liquid flow rates in the range of 0.1 to 100 Gallons/minute.

The FDO12 unit is a high flow back pressure regulator that is often used in small production plants. The unit has a Cv rang from 1·E-2 up to 12. This means that it has a turndown ratio of 1:12000. The units are typically used in a range from 400 ml/min up to 500 l/min water. Lower flows are easy to achieve by creating a closed loop control. This rangeability is often ideal for Steam In Place (SIP) and Clean In Place (CIP) procedures. The low flow is used during a standard process run and the large capacity allows purging with high flows. The diaphragm is the only moving part making the regulator to respond incredibly quick to any change in process conditions. A small movement of the diaphragm enables the unit to release a very large amount of flow.

This model is standard available in SS316 or Hastelloy 276. The diaphragm is made out of USP Class VI PTFE. O-rings, like Kalrez 6230 or PEF encapsulated O-rings are used and FDA approved.

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Sanitary Pressure Control Across a Wide Range of Flow Rates