There are two options to determine the size of your DIN 32676 fittings:
Option 1 | Measure the Inside Diameter (ID) of the tube end:
- Utilizing a measuring calipers, take a measurement on the inside of the tube fitting
- Note this measurement as the Inside Diameter of the tube fitting.
Option 2 | Measure the Outside Diameter (OD) of the flange end:
- Utilizing a measuring calipers, take a measurement at the flanged end which is the widest part of your fitting utilized by clamps.
- Note this measurement as the OD of Flange End of the tube fitting.
- Note: DIN 10, 15 & 20 have the same flange OD.
- Note: DIN 25, 32 & 40 have the same flange OD.
- To determine your size, also measure the Inside Diameter (ID) from step #1
Next, use your Inside Diameter (OD) measurement to determine fitting size:
The flange size is not equal to the DIN fitting size. In order to determine the correct size, please refer to the measurements table or note the Inside/Outside diameters labeled in the illustration below.
| DIN 32676 Size | OD of Flange End (mm) | ID of Tube (mm) | OD of Tube (mm) |
|---|---|---|---|
| 10 | 34mm / 1.339" | 10mm / 0.393" | 13mm / 0.512 |
| 15 | 34mm / 1.339" | 16mm / 0.630" | 19mm / 0.748" |
| 20 | 34mm / 1.339" | 20mm / 0.787" | 23mm / 0.906" |
| 25 | 50.5mm / 1.988" | 26mm / 1.024" | 29mm / 1.142" |
| 32 | 50.5mm / 1.988" | 32mm / 1.260" | 35mm / 1.378" |
| 40 | 50.5mm / 1.988" | 38mm / 1.496" | 41mm / 1.614" |
| 50 | 64mm / 2.520" | 50mm / 1.969" | 53mm / 2.087" |
| 65 | 91mm / 3.583" | 66mm / 2.598" | 70mm / 2.756" |
| 80 | 106mm / 4.173" | 81mm / 3.189" | 85mm / 3.346" |
| 100 | 119mm / 4.685" | 100mm / 3.937" | 104mm / 4.094" |
| 125 | 155mm / 6.102" | 125mm / 4.921" | 129mm / 5.079" |
| 150 | 183mm / 7.205" | 150mm / 5.096" | 154mm / 6.063" |
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