SERIES BF 5.5mm Forward

SERIES BF 5.5mm Forward

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.


Video Of SERIES BF 5.5mm Forward

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
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)
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)