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The KOENIG RESTRICTOR® and KOENIG CHECK VALVE® combine our industry-leading flow control and sealing expertise, with products that provide precise fluid control with low total costs. Using a unique, one-piece design, our flow restrictor and check valve models are available in a wide variety of sizes and pressure ratings, providing a precise orifice flow control solution. Learn more about our orifice flow restrictor and check valve models, including performance and installation information, on our About Flow Product description page. SFC KOENIG® flow restrictor and check valve products provide reliable, proven performance and easy installation for a wide range of applications. Our engineers can develop a custom design for your specific flow control needs, or use our Product Selector to identify the correct KOENIG RESTRICTOR for your specifications.
| Performance | |||
| Max. Installation Force | 6200 N | ||
| Max. Working Pressure in Check Direction | 280 bar | ||
| Max. Working Pressure in Flow Direction | 40 bar | ||
| Max. Leakage on Air | 20 sccm/min. @ 1.72 bar | ||
| Max. Leakage on hydraulic fluid (HLP46) | 1 drop/min. | ||
| Cycle Test on hydraulic fluid (HLP46) | 1 Mio. Cycles, 5 Hz, 6 bar, 50˚C | ||
| Screen Size | 125 Microns Absolute | ||
| Material of test body | EN-GJS-600-3 | ||
| CHECK VALVE FORWARD FLOW - SCREENED | |
| Part Number | Cracking Pressure (bar) |
| BFAA055S000 | 0.00 (no spring) |
| BFAA055S014 | 0.14 (± 0.05) |
| BFAA055S025 | 0.25 (± 0.10) |
| BFAA055S040 | 0.40 (± 0.30) |
| BFAA055S050 | 0.50 (± 0.30) |
| BFAA055S100 | 1.00 (± 0.30) |
| BFAA055S200 | 2.00 (± 0.30) |
| CHECK VALVE FORWARD FLOW - UNSCREENED | |
| Part Number | Cracking Pressure (bar) |
| BFAA055U000 | 0.00 (no spring) |
| BFAA055U014 | 0.14 (± 0.05) |
| BFAA055U025 | 0.25 (± 0.10) |
| BFAA055U040 | 0.40 (± 0.30) |
| BFAA055U050 | 0.50 (± 0.30) |
| BFAA055U100 | 1.00 (± 0.30) |
| BFAA055U200 | 2.00 (± 0.30) |
