THE KOENIG RESTRICTOR®

The SFC KOENIG flow restrictor is a precise orifice restrictor solution designed to restrict flow in fluid systems. With its one-piece design, SFC KOENIG® orifice flow restrictor models provide easy installation and can be easily used in automated manufacturing processes, helping to lower production costs. Their proven metal-to-metal sealing technology provides precise flow control even in high-vibration installations, making them one of the industry’s most reliable orifice restrictor flow control solutions.

KOENIG RESTRICTOR models are available in a wide range of sizes and are constructed of durable stainless steel. Integrated screens are available on some orifice flow restrictor components. KOENIG RESTRICTOR models are pressure rated up to 200 bar for orifice diameters as small as 0.40mm (.016 inch).  

To assist with your flow restrictor product selection, use our Flow Calculators. Simply select your KOENIG RESTRICTOR and enter 3 values about your application. Options are available to determine your flow restrictor: Flow Rate in metric measurements, Flow Rate in English measurements, Orifice Size in metric measurements and Orifice Size in English measurements.

More about our flow control restrictor and check valve products. Click the + icon for KOENIG RESTRICTOR product specs.

PART NUMBER KEY: XXX is the orifice Diameter in hundreths of a Millimeter Example: Ø 1.27mm orifice will be 127. Ø 0.40mm orifice will be 040.

+ ALL DIMENSION IN MM

Determine Orifice Size & Flow Rate
+ Flow Rate Calculator - mm
+ Flow Rate Calculator - Inch
+ Orifice Size Calculator - mm
+ Orifice Size Calculator - Inch


Part Number

d1

l1

l2 ~

Ref.

0

±0.025

Orifice Diameter

d2

+0.10

-0

l3 min.

 s

 x

±0.3

 d3 max.

RE-040-XXX 4.0 4.0 6.0 0.40 - 1.25 4.0 3.9 2.0 0.0 3.3
RE-050-XXX 5.0 5.5 8.2 0.40 - 1.90 5.0 5.4 2.7 0.0 4.3
RE-060-XXX 6.0 6.5 9.9 0.40 - 2.50 6.0 6.4 3.4 0.0 5.3
RE-070-XXX 7.0 7.5 11.6 0.40 - 3.30 7.0 7.4 4.1 0.0 6.2
RE-080-XXX 8.0 8.5 13.3 0.40 - 3.80 8.0 8.4 4.8 0.0 7.2
RE-090-XXX 9.0 10.0 15.5 0.40 - 4.30 9.0 9.9 5.5 0.0 8.2
RE-100-XXX 10.0 11.0 17.1 0.40 - 4.95 10.0 10.9 6.1 0.0 9.2
RE-120-XXX 12.0 13.0 20.5 0.40 - 6.10 12.0 12.9 7.5 0.0 11.0
RE-140-XXX 14.0 15.0 23.7 0.40 - 7.10 14.0 14.9 8.7 0.0 13.0

Dimensions in mm

Pressure Performance

Series

RE

mm

Base material of the Installation

ETG-100/44SMn28

AISI 1144

 C15Pb

1.0403

 EN-GJL-250

EN 1561

     EN-GJS-500-700

EN 1563

AICu4Mg1

EN AW-2024-T3

AiMgSiPb

EN AW-6012-T6

G-AlSi7Mg

EN-AC-42100

Ø 4 - 14 200 bar / 2940 psi           150 bar / 2205 psi

Max. Allowable Working Pressure = Nominal Pressure   

PART NUMBER KEY: XXX is the orifice diameter in thousandths of a Millimeter. Example: Ø 0.050 Inch orifice will be 050.

+ ALL DIMENSIONS IN INCH

Determine Orifice Size & Flow Rate
+ Flow Rate Calculator - mm
+ Flow Rate Calculator - Inch
+ Orifice Size Calculator - mm
+ Orifice Size Calculator - Inch


Part Number

d1

l1

l2 ~

Ref.

0

±0.001

Orifice Diameter

d2

+0.004

-0

l3 min.

 s

 x

±0.01

 d3 max.

RE 156-XXX 0.156 0.158 0.24 .020 - .050 0.1563 0.15 0.03 0.0 0.130
RE 187-XXX 0.187 0.217 0.31 .020 - .070 0.1875 0.21 0.04 0.0 0.160
RE 218-XXX 0.218 0.217 0.33 .020 - .085 0.2188 0.21 0.05 0.0 0.190
RE 250-XXX 0.250 0.256 0.40 .020 - .105 0.2500 0.25 0.08 0.0 0.220
RE 281-XXX 0.281 0.296 0.46 .020 - .130 0.2813 0.29 0.10 0.0 0.250
RE 312-XXX 0.312 0.335 0.52 .020 - .150 0.3125 0.33 0.12 0.0 0.281
RE 343-XXX 0.343 0.394 0.60 .020 - .160 0.3438 0.39 0.13 0.0 0.312
RE 375-XXX 0.375 0.394 0.62 .020 - .180 0.3750 0.39 0.16 0.0 0.343
RE 406-XXX 0.406 0.434 0.67 .020 - .195 0.4063 0.43 0.15 0.0 0.375
RE 437-XXX 0.437 0.512 0.77 .020 - 220 0.4375 0.51 0.17 0.0 0.406
RE 468-XXX 0.468 0.512 0.81 .020 - .240 0.4688 0.51 0.20 0.0 0.437
RE 562-XXX 0.562 0.591 0.94 .020 - .290 0.5625 0.59 0.24 0.0 0.510

Dimensions in inch

 

Pressure Performance

Series

RE

inch

Base material of the Installation

ETG-100/44SMn28

AISI 1144

 C15Pb

1.0403

 EN-GJL-250

EN 1561

     EN-GJS-500-700

 EN 1563

AICu4Mg1

EN AW-2024-T3

AiMgSiPb

EN AW-6012-T6

G-AlSi7Mg

EN-AC-42100

Ø 0.156 - 0.562 200 bar / 2940 psi           150 bar / 2205 psi

Max. Allowable Working Pressure = Nominal Pressure   


行业

Industries

Our parts are proven reliable in a variety of industries and applications, including transportation, fluid power, precision and microhydraulics.

worldwide

Global presence

SFC KOENIG’s efficient business networks span the globe with locations in all key regions and a broad network of Distribution Partners.

certificates

certificates

Our sealing and flow control solutions comply with global quality assurance and certification standards.