QB3
The QB3 pressure control valve is a complete electronic pressure regulating package consisting of two feed and bleed solenoid valves, a control circuit, a pressure transducer, an integrated air pilot operated volume booster and a rugged housing. The pressure transducer is connected directly to the control pressure so the closed-loop electronics and analog monitor signal show you what is really happening in your process.
The analog monitor signal is constantly compared against the command signal to achieve your desired set pressure. The QB3 pressure control valve offers high flow and great repeatability. This compact package can be mounted in any orientation (exception: only vertical with full scale pressures below 10 PSI) and is immune to the rigors of the industrial environment. Like most of our products, the QB3 can be modified in numerous ways to meet the most demanding applications.
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Accuracy ±
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Repeatability ±
Max Flow (SCFM)
Max P2 (PSI)
QB3 Downloads & Links
| Documents | Links | Downloads |
| Installation Guide | QB3_Schematic Symbol | |
| Sales Brochure | File Request Form |
QB3 Downloads & Links
| Documents |
| Installation Guide |
| Sales Brochure |
| Links |
| Downloads |
| QB3_Schematic Symbol |
| File Request Form |
QB3 Technical Specifications
| Pressure Range | Accuracy (Pressure) | Accuracy (Monitor) | Max Flow |
| Vacuum thru 150 PSI (10.3 Bar) | ±0.25%-0.5% F.S. | ±0.3% F.S. | 30 SCFM (850 LPM) |
| Port Size | Durability | Operating Temps | Filtration |
| 1/4″ NPT (BSPP Available) | Immune to shock & vibration (up to 20 Gs) | 32-158°F (0-70°C) | 40 Micron |
QB3 Technical Specifications
| Pressure Range |
| Vacuum thru 150 PSI (10.3 Bar) |
| Accuracy |
| ±0.25% F.S. |
| Repeatability |
| ±0.02% F.S. |
| Max Flow |
| 30 SCFM (850 LPM) |
| Port Size |
| 1/4″ NPT (BSPP Available) |
| Durability |
| Immune to shock & vibration (up to 25 Gs) |
| Operating Temps |
| 32-158°F (0-70°C) |
| Filtration |
| 40 Micron |
| Protection Rating |
| IP65 |
QB3 3D .STEP View & Download
QB3 | Single Unit
The QB3 electro-pneumatic pressure control valve is designed for industrial environments. It has an integrated volume booster for increased forward and reverse flow rates of up to 30 SCFM. With such a small footprint, the QB3 can be mounted in most applications in any orientation and it is immune to shock and vibration (up to 20 Gs). Complete the ‘Request Quote’ form below and tell us about your application. We will respond fast and help determine if the QB3 is the best fit for your application. If not, we will make a recommendation and quote quickly.
QB3 3D .STEP View & Download
5 Station Sub-Base Manifold
QB3 | 5 Station Sub-Base Manifold Mounting
The versatility of the QB3 is what makes this product such a success in the market. If you require tight pressure control and high flow to multiple processes, the QB3 can be mounted on a sub-base manifold with a shared inlet port and common exhaust port. Each QB3 will control pressure to completely seperate processes, but you will only have to run 1 supply and 1 exhaust line to the manifold for all. Let us know how many QB3s you would like to manifold mount by submitting the ‘Request Quote’ form below.
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