Pressure Regulator for Fuel Cells | Equilibar Precision Pressure Control

Fuel Cell Pressure Regulator

  • Equilibar schematic fuel cell

Back Pressure Regulators for Fuel Cells

The Equilibar® precision back pressure regulator (BPR) is the perfect fit for many fuel cell applications. Fuel cell testing systems, in particular, benefit from the high sensitivity of the Equilibar BPR in the low to mid pressure ranges that is lacking in most competitive products.

Low Flow Control
Incredible 1000:1 flow rate turn-down ratio

Equilibar’s “GR” trim was specifically designed in response to the demanding flow rate requirements of the fuel cell testing industry. These GR trim regulators can provide stable stack pressures through ultra wide flow rate ranges required for rigorous test protocols. Gas flow rate control is possible down to below 1 ml/minute.

fuel cell testing schematic with Equilibar back pressure regulators

Equilibar BPRs control pressure on the outlet of the anode and cathode

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Ease of computer automation

The Equilibar BPR operates using a pilot regulator on its dome to provide a setpoint. The dome loaded design is sensitive to changes in an Electro-Pneumatic Regulator (EPR) setpoint as small as 0.001 psig, giving a process computer unprecedented control of gas system pressures. While most fuel cell testing systems use closed-loop PID feedback on the stack outlet pressure sensor, the incredible precision of the Equilibar BPR allows for full system control using an EPR with open-loop control or simply using a manual pressure regulator as a pilot setpoint regulator.

Contact one of our Applications Engineers to help select the perfect back pressure regulator for your fuel cell application.

GS Series Equilibar Back Pressure Regulator

The Fuel Cell and Hydrogen Energy Association is dedicated to the commercialization of fuel cells and hydrogen energy technologies.

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Customer Case Study – Improving catalysts for automotive fuel cells

Researchers at Charles University in Prague, Czech Republic, have successfully used an Equilibar® Back Pressure Regulator combined with a QPV electronic pressure regulator to provide precise control of fuel cell anode and cathode pressure across a wide range of test conditions. The research is part of vital international efforts to develop improved environmental catalysts for automotive fuel cells. At Charles University, fuel cell research is working to develop improved catalysts with the goal of lowering noble metal content, which would directly lower the cost of the power supply while also using more environmentally friendly materials. Read a detailed account in the link to the right.

PEM Fuel Cell System by Greenlight Innovation

 

PEM Fuel Cell Test System by Greenlight Innovation

 

GS Series Equilibar Back Pressure Regulator is designed specifially for fuel cell applications The Equilibar® GS Series is a high performance back pressure regulator ideally suited for Fuel Cell Testing applications.

image of Equilibar BD24 with QPV electronic pressure control pilot

The Equilibar® BD Series with a QPV electronic pilot regulator for computer automation. BD valves are larger high performance back pressure regulator used in Fuel Cell Testing applications.

 

Hydrogen-Fuel-Cell-Testing-thumb

Fuel Cell Testing case study from Charles University in Prague

BD back pressure valve is often used fuel cell testing application with higher flow ranges.

image of Equilibar BD16 back pressure valve

BD16 Industrial Back Pressure Regulator

Port Sizes:
2"
Typical Pressure Ranges:
0 - 1 in WC
0 - 28 in WC
0 - 5 psi
0 - 10 psi
0 - 20 psi
0 - 30 psi
0 - 60 psi
Key Applications:
Technical Details

An Equilibar GS series regulator is a good solution for your lower flow range fuel cell testing

GSD4 General Service Back Pressure Regulator

GSD4 General Service Back Pressure Regulator

Port Sizes:
1/2"
Typical Pressure Ranges:
0 - 1 in WC
0 - 10 in WC
0 - 2 psi
0 - 5 psi
0 - 10 psi
0 - 20 psi
0 - 30 psi
0 - 60 psi
0 - 100 psi
0 - 150 psi
0 - 200 psi
0 - 250 psi
0 - 300 psi
Key Applications:
Technical Details

Watch the video below of how the Equilibar Back Pressure Regulator works.

How Equilibar Back Pressure Regulator Works

Work Categories
Equilibar News
formulas on blackboard innovation research

New ideas for the new year? Browse our product literature for inspiration

The start of a new year is always exciting at Equilibar. After the quiet of the holidays, we’re eager to explore the flurry of inquiries showing up in our inboxes. The new year also seems to be an appropriate time for a quick review of the product literature we have available for download. We’d like Read More

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