Similar to the LF units of the Low Flow Series, the High Flow Series matches Equilibar’s patented multi-orifice design for back pressure regulators. These pressure regulators offer equally excellent capabilities for stable and accurate pressure control, whilst being capable of handling larger flows and thus larger flow coefficient values.
The Equilibar® High Flow series is a very compact pressure regulator, similar to the multi-orifice Low Flow back pressure regulators. These High Flow units have quite a small footprint, yet they can handle a Cv value up to 0,41. Like all Equilibar back pressure regulators, the rangeability surpasses any other traditional valve. The minimum Cv value of the High Flow regulators, in open loop control, is 1·E-05. This means this instrument can control it’s upstream pressure with a very large turndown ratio even when the flow varies over a wide range as well.
Without a doubt, the units in the Equilibar High Flow Series are very versatile. In addition, the instruments are capable of handling two-phase flow and supercritical media and even media containing particles. Although it is always better to use a filter upstream of any control valve, in cases where it is impossible to keep particles out of the process media (such as crystallization processes), smooth process control with only limited maintenance or downtime is more than feasible with these back pressure regulators. Depending on their size and amount and the level of abrasiveness, particles in the process can be a complicated parameter to work with. As explained in our Expertise section, PCS specializes in precision process control for such complex process conditions! Please contact us if you have such a challenge in your application so we can look into the optimal solution for your process together.
Common applications where the HF Series is applied are fuel cell testing equipment, high-pressure pump testing and pilot-plant-scale-catalysis research. The units in the HF Series are supplied quite frequently, so we regularly have it on stock. If you are interested to run a test or to evaluate the performance of HF units, we might be able to arrange a trial delivery from stock. Check out the possibilities for a product trial.
|Main specifications of High Flow Series summarized
For complete overview, please see the product brochure, installation & maintenance guide and drawings via the tabs on the left side of this table.
Contact us if you cannot find what you are looking for!
|Often used in||Processes with higher flows, sucg as higher-flow-catalysis or pilot-plant-scale reactor control, agressive chemistry applications
Works well with gas, liquids and mixed-phase media
|Available models*||HF1 & HF2||H3PF2||H6PF2|
|Maximum operating pressure||68 bar |
|200 bar |
|Flow coefficient |
& turn down ratio
|HF1 & HF2|
|H3PF2 & H6PF2
|MAOT in °C||≤ 40°C for polymer bodies
≤ 150°C for metal bodies + PTFE diaphragm + Viton® O-rings
≤ to 200°C for metal bodies + metal diaphragm + Viton® O-rings
≤ 300°C for metal bodies + metal diaphragm + Kalrez® O-rings
For High Temperature models ≤ 450°C see High Temperature Series
1/8″ NPT or BSPP
|HF2 | H3PF2 | H6PF2
1/4″ NPT or BSPP
|Port thread options||HiP, Swagelok VCO/VCR®, Tube Stub,HPLC, Autoclave Speed-Bite|
|Body & cap material|
|Stainless Steel 316/316L|
|Body & cap material options||Hastelloy C276, Titanium, Zirconium
PTFE, PVDF, PEEK, PVC, Monel
|Diaphragm materials||PGL (PTFE Glass Laminated), Stainless Steel SS316/316L, Hastelloy C276,
Virgin PTFE, FKM, Polyimide, Buna‐N, PEEK, EPDM
*Diaphragm thickness will be selected by our engineers based on your process parameters
|O-ring materials||Viton® (FKM), Kalrez® (FFKM), PTFE, EPDM, Buna‐N|
|Options||Can be supplied including mounting brackets
|Spare part kits and/or Rebuild kits optionally available
See: Spare Parts and Maintenance
|Electronic & manual pilot control options available
See: How to pilot your back pressure regulator