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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 | 8000 N | ||
| Max. working pressure in check direction | 280 bar | ||
| Max. working pressure in flow direction | 40 N | ||
| 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 | ||
| Material of test body | EN-GJS-600-3 | ||
| CHECK VALVE FORWARD FLOW - UNSCREENED | |
| Part Number | Cracking Pressure (bar) |
| BF660080024000 | 0.00 (no spring) |
| BF660080024014 | 0.14 (± 0.05) |
| BF660080024040 | 0.40 (± 0.30) |
| BF660080024100 | 1.00 (± 0.30) |
| Materials | |||
| Sleeve | 1.4305/AISI 303 | ||
| Pin | 1.4021/AISI 420A | ||
| Cage | 1.4305/AISI 303 | ||
| Spring | 1.4310/AISI 301 | ||
| Ball | 1.3541/AISI 420C | ||
