Rectukey Coupler

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


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


Caution: Cannot be interconnected with the standard 21 Series.
   
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
 
 
Material
 
COUPLER   STANDARD
MATERIAL		   NICKEL
PLATED
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
Seals NBR NBR
PLUG Brass,
with anodized aluminium designation		 Brass,Nickel Plated,
with anodized aluminium designation
 
 
 

Series 21 KA Standard Couplers (COLOR CODED) Standard
  Green Brown Blue Red
Plug
Type		 Connection
(A)		 Hex
(SW)		 Length
(L)		 Depth
(D)		 L1 L2 Hex1
(SW1)		 B G Green
P/N		 Brown
P/N		 Blue
P/N		 Red
P/N
Male
Thread		 1/8" NPT .55 1.92 .63 .35         21KA AN10 MPX0 21KA AN10 MPX3 21KA AN10 MPX6 21KA AN10 MPX8
1/4" NPT .55 1.96 .63 .47         21KA AN13 MPX0 21KA AN13 MPX3 21KA AN13 MPX6 21KA AN13 MPX8
Female
Thread		 1/8" NPSF .55 1.98 .63 .39         21KA IN10 MPX0 21KA IN10 MPX3 21KA IN10 MPX6 21KA IN10 MPX8
1/4" NPSF .66 2.16 .63 .51         21KA IN13 MPX0 21KA IN13 MPX3 21KA IN13 MPX6 21KA IN13 MPX8
Hose
Barb		 5/32" .55 2.71 .63 .66         21KA TF04 MPX0 21KA TF04 MPX3 21KA TF04 MPX6 21KA TF04 MPX8
1/4" .55 2.71 .63 .66         21KA TF06 MPX0 21KA TF06 MPX3 21KA TF06 MPX6 21KA TF06 MPX8
5/16" .55 2.71 .63 .66         21KA TF08 MPX0 21KA TF08 MPX3 21KA TF08 MPX6 21KA TF08 MPX8
3/8" .55 2.71 .63 .66         21KA TF10 MPX0 21KA TF10 MPX3 21KA TF10 MPX6 21KA TF10 MPX8
Plastic Hose
Connection		 5/32" x 1/4" .55 2.08 .63 .27 .23     M 12x1 21KA KO08 MPX0 21KA KO08 MPX3 21KA KO08 MPX6 21KA KO08 MPX8
1/4" x 5/16" .55 2.08 .63 .27 .23     M 10x1 21KA KO10 MPX0 21KA KO10 MPX3 21KA KO10 MPX6 21KA KO10 MPX8
Panel Mount
Hose Barb		 5/32" .55 2.71 .63 .55 .66 .55 .15 M 10x1 21KA TS04 MPX0 21KA TS04 MPX3 21KA TS04 MPX6 21KA TS04 MPX8
3/16" .55 2.71 .63 .55 .66 .55 .15 M 12x1 21KA TS05 MPX0 21KA TS05 MPX3 21KA TS05 MPX6 21KA TS05 MPX8
1/4" .55 2.71 .63 .55 .66 .55 .15 M 12x1 21KA TS06 MPX0 21KA TS06 MPX3 21KA TS06 MPX6 21KA TS06 MPX8
5/16" .55 2.71 .63 .55 .66 .55 .15 M 12x1 21KA TS08 MPX0 21KA TS08 MPX3 21KA TS08 MPX6 21KA TS08 MPX8
 
 
 

Series 21 KA Nickel Plated Couplers (COLOR CODED) Nickel
  Green Brown Blue Red
Plug
Type		 Connection
(A)		 Hex
(SW)		 Length
(L)		 Depth
(D)		 L1 L2 Hex1
(SW1)		 B G Green
P/N		 Brown
P/N		 Blue
P/N		 Red
P/N
Male
Thread		 1/8" NPT .55 1.92 .63 .35         21KA AN10 MPN0 21KA AN10 MPN3 21KA AN10 MPN6 21KA AN10 MPN8
1/4" NPT .55 1.96 .63 .47         21KA AN13 MPN0 21KA AN13 MPN3 21KA AN13 MPN6 21KA AN13 MPN8
Female
Thread		 1/8" NPSF .55 1.98 .63 .39         21KA IN10 MPN0 21KA IN10 MPN3 21KA IN10 MPN6 21KA IN10 MPN8
1/4" NPSF .66 2.16 .63 .51         21KA IN13 MPN0 21KA IN13 MPN3 21KA IN13 MPN6 21KA IN13 MPN8
Hose
Barb		 5/32" .55 2.71 .63 .66         21KA TF04 MPN0 21KA TF04 MPN3 21KA TF04 MPN6 21KA TF04 MPN8
1/4" .55 2.71 .63 .66         21KA TF06 MPN0 21KA TF06 MPN3 21KA TF06 MPN6 21KA TF06 MPN8
5/16" .55 2.71 .63 .66         21KA TF08 MPN0 21KA TF08 MPN3 21KA TF08 MPN6 21KA TF08 MPN8
3/8" .55 2.71 .63 .66         21KA TF10 MPN0 21KA TF10 MPN3 21KA TF10 MPN6 21KA TF10 MPN8
Plastic Hose
Connection		 5/32" x 1/4" .55 2.08 .63 .27 .23     M 12x1 21KA KO08 MPN0 21KA KO08 MPN3 21KA KO08 MPN6 21KA KO08 MPN8
1/4" x 5/16" .55 2.08 .63 .27 .23     M 10x1 21KA KO10 MPN0 21KA KO10 MPN3 21KA KO10 MPN6 21KA KO10 MPN8
Panel Mount
Hose Barb		 5/32" .55 2.71 .63 .55 .66 .55 .15 M 10x1 21KA TS04 MPN0 21KA TS04 MPN3 21KA TS04 MPN6 21KA TS04 MPN8
3/16" .55 2.71 .63 .55 .66 .55 .15 M 12x1 21KA TS05 MPN0 21KA TS05 MPN3 21KA TS05 MPN6 21KA TS05 MPN8
1/4" .55 2.71 .63 .55 .66 .55 .15 M 12x1 21KA TS06 MPN0 21KA TS06 MPN3 21KA TS06 MPN6 21KA TS06 MPN8
5/16" .55 2.71 .63 .55 .66 .55 .15 M 12x1 21KA TS08 MPN0 21KA TS08 MPN3 21KA TS08 MPN6 21KA TS08 MPN8
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.
 

Male Thread
Coupler
Female Thread
Coupler

Hose Barb
Coupler
Plastic Hose Connect.
Coupler
Panel Mount Hose
Barb Coupler
 
 
 

Series 21 SF Standard Plugs (COLOR CODED) Standard
  Green Brown Blue Red
Plug
Type		 Connection
(A)		 Hex
(SW)		 Length
(L)		 Depth
(D)		 L1 L2 Hex1
(SW1)		 B G Green
P/N		 Brown
P/N		 Blue
P/N		 Red
P/N
Hose
Barb		 5/32"   1.85 .59 .66         21SF TF04 MXX0 21SF TF04 MXX3 21SF TF04 MXX6 21SF TF04 MXX8
1/4"   1.85 .59 .66         21SF TF06 MXX0 21SF TF06 MXX3 21SF TF06 MXX6 21SF TF06 MXX8
Plastic Hose
Connection		 5/32" x 1/4"   1.69 .59 .27 .23     M 10x1 21SF KO46 MXX0 21SF KO46 MXX3 21SF KO46 MXX6 21SF KO46 MXX8
1/4" x 5/16"   1.69 .59 .27 .23     M 12x1 21SF KO08 MXX0 21SF KO08 MXX3 21SF KO08 MXX6 21SF KO08 MXX8
Panel Mount,
Hose Barb		 5/32" .66 2.48   .66 .55 .55 .15 M 10x1 21SF TS04 MXX0 21SF TS04 MXX3 21SF TS04 MXX6 21SF TS04 MXX8
1/4" .66 2.48   .66 .55 .66 .15 M 12x1 21SF TS06 MXX0 21SF TS06 MXX3 21SF TS06 MXX6 21SF TS06 MXX8
Male
Thread		 1/8" NPT .66 1.63   .35         21SF AN10 MXX0 21SF AN10 MXX3 21SF AN10 MXX6 21SF AN10 MXX8
1/4" NPT .66 1.75   .47         21SF AN13 MXX0 21SF AN13 MXX3 21SF AN13 MXX6 21SF AN13 MXX8
Female
Thread		 1/8" NPSF .66 1.49   .35         21SF IN10 MXX0 21SF IN10 MXX3 21SF IN10 MXX6 21SF IN10 MXX8
1/4" NPSF .66 1.88   .51         21SF IN13 MXX0 21SF IN13 MXX3 21SF IN13 MXX6 21SF IN13 MXX8
 

 
 
Series 21 SF Nickel Plated Plugs (COLOR CODED) Nickel
  Green Brown Blue Red
Plug
Type		 Connection
(A)		 Hex
(SW)		 Length
(L)		 Depth
(D)		 L1 L2 Hex1
(SW1)		 B G Green
P/N		 Brown
P/N		 Blue
P/N		 Red
P/N
Hose
Barb		 5/32"   1.85 .59 .66         21SF TF04 MXN0 21SF TF04 MXN3 21SF TF04 MXN6 21SF TF04 MXN8
1/4"   1.85 .59 .66         21SF TF06 MXN0 21SF TF06 MXN3 21SF TF06 MXN6 21SF TF06 MXN8
Plastic Hose
Connection		 5/32" x 1/4"   1.69 .59 .27 .23     M 10x1 21SF KO46 MXN0 21SF KO46 MXN3 21SF KO46 MXN6 21SF KO46 MXN8
1/4" x 5/16"   1.69 .59 .27 .23     M 12x1 21SF KO08 MXN0 21SF KO08 MXN3 21SF KO08 MXN6 21SF KO08 MXN8
Panel Mount,
Hose Barb		 5/32" .66 2.48   .66 .55 .55 .15 M 10x1 21SF TS04 MXN0 21SF TS04 MXN3 21SF TS04 MXN6 21SF TS04 MXN8
1/4" .66 2.48   .66 .55 .66 .15 M 12x1 21SF TS06 MXN0 21SF TS06 MXN3 21SF TS06 MXN6 21SF TS06 MXN8
Male
Thread		 1/8" NPT .66 1.63   .35         21SF AN10 MXN0 21SF AN10 MXN3 21SF AN10 MXN6 21SF AN10 MXN8
1/4" NPT .66 1.75   .47         21SF AN13 MXN0 21SF AN13 MXN3 21SF AN13 MXN6 21SF AN13 MXN8
Female
Thread		 1/8" NPSF .66 1.49   .35         21SF IN10 MXN0 21SF IN10 MXN3 21SF IN10 MXN6 21SF IN10 MXN8
1/4" NPSF .66 1.88   .51         21SF IN13 MXN0 21SF IN13 MXN3 21SF IN13 MXN6 21SF IN13 MXN8
 

Hose Barb
Plug
Plastic Hose
Connect. Plug
Panel Mount Hose
Barb Plug
Male Thread
Plug
Female Thread
Plug