Rectukey Coupler
SERIES 21 RectuKey - 1/4" Body - NOMINAL PLUG BORE .20"

  • Working Temperature: depending on medium
    +25F up to +572F (NBR)
    -4C up to +300C
  • Working Pressure: 500 psi, maximum static working pressure with 4:1 design factor.
  • Metric male (DIN 2353) & female threads and BSP male & female threads are available upon request.

Caution: Cannot be interconnected with the standard 21 Series.
Features Product Details Technical Info

The 21 RectuKey Series provides an axcellent solution for the connecting of different media without the inherant danger of making the wrong connection. Four standard codes with matching colors for the coupling and the respective plugs make sure there is no mix-up of the media when connecting. This series is also available without a valve in a Straight-Thru design and a Double Shut-Off design. For Straight -Thru Couplers, please change the part number from 21KA to 21KF when ordering. For Double Shut-Off Couplers, please change the part number from 21KA to 21KB when ordering.
Series 21KA RectuKey - 1/4" Body - Automatic Single Shut-Off - NOMINAL PLUG BORE .20"
Series 21KF RectuKey - 1/4" Body - Automatic Straight-Thru - NOMINAL PLUG BORE .20"
Series 21KB RectuKey - Double Shut-Off

Back Body Brass Brass,
Nickel Plated
Valve Body Brass Brass,
Nickel Plated
Sleeve Aluminium anodized Aluminium anodized
Valve Brass Brass
Spring &
Locking Ring
Stainless Steel, AISI 301 AISI 301
Locking Balls Stainless Steel, AISI 420 AISI 420
PLUG Brass,
with anodized aluminium designation
Brass,Nickel Plated,
with anodized aluminium designation
Rectukey Coupler
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