  Technical Description: Our 21 series is a larger version of the 20 series. This single hand operated, quick connect coupling is ideal wherever space plays a major role. It can be supplied as straight through (no valve), single shut-off or double shut-off. This series is available in thermoplastics as well as RectuKey versions.
  Applications:  Laboratories, gas providing, presentation, learning systems, filling systems, breathing air, chemistry, just to avoid a mix of various mediums.
  Advantages:  A quality coupling which has the advantages of single hand operation and small size as well as a multitude of connecting options.
  Working Pressure: PB = 35 bar, maximum static working pressure with safety factor of 4 to 1.
  Working Temperature:* -20°C up to +100°C (Buna N) depending on the medium.
  
 Doorstroming diagram - Lucht  | Doorstroming diagram - Water  |   
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Koppeling  | Con. A  | Hex  | L  | D  | L1  | L2  | Hex1  | B  | G  | Materiaal  |  
 
 
 
  
  | 1/8" NPT  | .55  | 1.49  | .63  | .35  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |  1/4" NPT  | .55  | 1.61  | .63  | .47  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |  3/8" NPT  | .66  | 1.61  | .63  | .47  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
 
 
 
  
  | 1/8" NPSF  | .55  | 1.55  | .63  | .47  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |  1/4" NPSF  | .66  | 1.77  | .63  | .51  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |  3/8" NPSF  | .74  | 1.88  | .63  | .55  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
 
 
 
 
 
 
 
  
  | 5/32"  | .55  | 1.81  | .63  | .66  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |  3/16"  | .55  | 1.81  | .63  | .66  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |  1/4"  | .55  | 1.81  | .63  | .66  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |  5/16"  | .55  | 1.81  | .63  | .66  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |  3/8"  | .55  | 1.81  | .63  | .66  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |   |  |  |  |  |  |  |  |  |  |  |   
  | 1/4" P.L.  | .55  | 1.96  | .63  | .78  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316 Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
 
  
  | 5/32" x 1/4"  | .55  | 1.69  | .63  | .27  | .27  |  |  | M 10 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4" x 5/16"  | .55  | 1.65  | .63  | .27  | .23  |  |  | M 10 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
 
  
  | 5/32" x 1/4"  | .55  | 2.12  | .63  | .27  | .70  | .55  | .15  | M 10 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4" x 5/16"  | .66  | 2.12  | .63  | .27  | .70  | .66  | .15  | M 10 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
  
  | 5/32" x 1/4"  | .86  | 1.65  | .94  | .27  | .62  | .94  | .19  | M 20 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4" x 5/16"  | .86  | 1.65  | .94  | .27  | .62  | .94  | .19  | M 20 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
 
 
 
 
 
  
  | 5/32"  | .86  | 1.81  | .94  | .66  | .62  | .94  | .19  | M 20 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4"  | .86  | 1.81  | .94  | .66  | .62  | .94  | .19  | M 20 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  5/16"  | .86  | 1.81  | .94  | .66  | .62  | .94  | .19  | M 20 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  3/8"  | .86  | 1.81  | .94  | .66  | .66  | .62  | .19  | M 20 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
 
 
 
 
  
  | 5/32"  | .55  | 2.36  | .63  | .66  | .55  | .55  | .15  | M 10 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  3/16"  | .66  | 2.36  | .63  | .66  | .55  | .66  | .15  | M 12 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4"  | .66  | 2.36  | .63  | .66  | .55  | .66  | .15  | M 12 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  5/16"  | .66  | 2.36  | .63  | .66  | .55  | .66  | .15  | M 12 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
  
 
 
  | 5/32" x 1/4"  | .55  | 4.92  | .63  | .27  | .27  |  |  | M 10 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4" x 5/16"  | .55  | 5.11  | .63  | .27  | .62  |  |  | M 10 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   
  
 
 Nippel  | Con. A  | Hex  | L  | D  | L1  | L2  | Hex1  | B  | G  | Materiaal  |  
 
 
 
 
 
 
 
 
  
  | 5/32"  |  | 1.26  | .35  | .66  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  3/16"  |  | 1.26  | .35  | .66  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4"  |  | 1.26  | .35  | .66  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  5/16"  |  | 1.26  | .35  | .66  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  3/8"  |  | 1.29  | .47  | .66  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |   
  | 1/4" P.L.  |  | .36  | .16  | .20  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
  
  | 5/32" x 1/4"  |  | 1.26  | .39  | .23  | .23  |  |  | M 10 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4" x 5/16"  |  | 1.26  | .47  | .23  | 6  |  |  | M 12 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
  
    | 5/32" x 1/4"  | .55  | 1.73  |  | .55  | .71  | .55  | .16  | M 10 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4" x 5/16"  | .55  | 1.73  |  | .27  | .70  | .66  | .15  | M 12 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
  
  | 5/32" x 1/4"  |  | 4.52  | .39  | .23  | .23  |  |  | M 10 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4" x 5/16"  |  | 4.72  | .47  | .23  | .23  |  |  | M 12 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
 
 
  
  | 1/8" NPT  | .43  | 1.06  | .35  |  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4" NPT  | .55  | 1.20  |  | .47  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  3/8" NPT  | .55  | 1.14  |  | .35  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
  
  | 1/8" NPSF  | .55  | 1.14  |  | .35  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4" NPSF  | .66  | 1.33  |  | .51  |  |  |  |  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   |  |  |  |  |  |  |  |  |  |  |  
 
 
 
 
 
 
 
   
      | 5/32"  | .55  | 1.96  |  | .66  | .55  | .55  | .15  | M 10 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  3/16"  |  | 1.96  |  | .66  | .55  | .66  | .15  | M 12 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  1/4"  | .55  | 1.96  |  | .66  | .55  | .66  | .15  | M 12 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  5/16"  | .55  | 1.96  |  | .66  | .55  | .66  | .15  | M 12 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |  3/8"  | .66  | 1.96  |  | .66  | .55  | .74  | .15  | M 14 x 1  | Standaard Design  |   |  |  |  |  |  |  |  |  | Vernikkeld  |   |  |  |  |  |  |  |  |  | AISI 303  |   |  |  |  |  |  |  |  |  | AISI 316Ti  |   
 
 
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