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 the correct flow restrictor series:

Flow Rate Calculator in metric measurements

Orifice Size Calculator in metric measurements

More about our flow control orifice 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.

d3 max.

[s]

~ Ref.

x

±0.3

Packaging Unit
RE-040-XXX 4.0 4.0 6.0 0.40 - 1.25 4.0 3.9 3.3 2.0 0.0 100 / 1000
RE-050-XXX 5.0 5.5 8.2 0.40 - 1.90 5.0 5.4 4.3 2.7 0.0 100 / 1000
RE-060-XXX 6.0 6.5 9.9 0.40 - 2.50 6.0 6.4 5.3 3.4 0.0 100 / 1000
RE-070-XXX 7.0 7.5 11.6 0.40 - 3.30 7.0 7.4 6.2 4.1 0.0 100 / 1000
RE-080-XXX 8.0 8.5 13.3 0.40 - 3.80 8.0 8.4 7.2 4.8 0.0 100 / 1000
RE-090-XXX 9.0 10.0 15.5 0.40 - 4.30 9.0 9.9 8.2 5.5 0.0 100 / 1000
RE-100-XXX 10.0 11.0 17.1 0.40 - 4.95 10.0 10.9 9.2 6.1 0.0 100 / 1000

Dimensions in mm

Pressure Performance

Series RE mm

Base material of the Installation

AISI 1144 High Strength Steel

Dura Bar 65-45-12 Ductile Cast Iron

AA 2024 Aluminum Alloy

A356 Cast Aluminum Alloy

Ø 4 120 bar / 1740 psi 100 bar / 1450 psi
Ø 5 180 bar / 2610 psi 150 bar / 2175 psi
Ø 6 210 bar / 3045 psi 150 bar / 2175 psi
Ø 7 - 8 210 bar / 3045 psi 180 bar / 2610 psi
Ø 9 - 14

Please Contact Us for Details

Max. Allowable Working Pressure = Nominal Pressure

Please note these recommendations are generally conservative and higher working pressures are possible in some applications. Please contact your local applications engineer with any questions


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.