Nagase RooTAC (TOTAKU)
Nagase RooTac TOTAKU Ducting Hoses MD-25

Manufacturer: Nagase RooTAC Industries, Inc.
Model: MD-25
Feature
- Made with specially coated glass cloth and a reinforced core of stainless steel (SUS304), suitable for use at temperatures up to 482°F (250°C).
- Freely expandable and contractible, making it easy to store, handle, and transport.
- The specially coated glass cloth used offers excellent flame-retardant properties (Certified as Class 1 flame-resistant).
- Suitable for hot air circulation devices and as suction ducts for welding sparks.
Standard Dimensions and Properties

| Nominal Diameter | Inner Diameter | Outer Diameter | Reference Weight | Length | Allowable Pressure (at room temperature) | Allowable Vacuum Pressure (at room temperature) | Allowable Bend Radius (to the center axis of the hose) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| inch | mm | inch | mm | inch | mm | lbs/ft | g/m | feet | m | psi | MPa | inHg | kPa | inch | mm |
| 2 | 50 | 2.01 | 51.0 | 2.15 | 54.5 | 0.24 | 360 | 16 | 5 | 1.02 | 0.007 | -2.51 | -8.5 | 4.33 | 110 |
| 2.5 | 65 | 2.64 | 67.0 | 2.81 | 71.5 | 0.32 | 480 | 16 | 5 | 1.02 | 0.007 | -2.36 | -8.0 | 5.51 | 140 |
| 3 | 75 | 2.99 | 76.0 | 3.15 | 80.0 | 0.35 | 525 | 16 | 5 | 1.02 | 0.007 | -2.07 | -7.0 | 6.30 | 160 |
| 3.5 | 90 | 3.58 | 91.0 | 3.72 | 94.5 | 0.37 | 545 | 16 | 5 | 1.02 | 0.007 | -1.92 | -6.5 | 7.48 | 190 |
| 4 | 100 | 4.04 | 102.5 | 4.17 | 106.0 | 0.43 | 635 | 16 | 5 | 1.02 | 0.007 | -1.92 | -6.5 | 8.27 | 210 |
| 5 | 125 | 5.02 | 127.5 | 5.16 | 131.0 | 0.52 | 770 | 16 | 5 | 1.02 | 0.007 | -1.77 | -6.0 | 9.84 | 250 |
| 6 | 150 | 6.00 | 152.5 | 6.12 | 155.5 | 0.61 | 910 | 16 | 5 | 1.02 | 0.007 | -1.18 | -4.0 | 11.02 | 280 |
| 7 | 175 | 6.95 | 176.5 | 7.09 | 180.0 | 0.78 | 1165 | 16 | 5 | 1.02 | 0.007 | -1.18 | -4.0 | 13.39 | 340 |
| 8 | 200 | 7.95 | 202.0 | 8.07 | 205.0 | 0.83 | 1240 | 16 | 5 | 1.02 | 0.007 | -0.89 | -3.0 | 14.96 | 380 |
| 10 | 250 | 9.96 | 253.0 | 10.08 | 256.0 | 1.06 | 1570 | 16 | 5 | 1.02 | 0.007 | -0.89 | -3.0 | 20.08 | 510 |
| 12 | 300 | 11.95 | 303.5 | 12.07 | 306.5 | 1.28 | 1905 | 16 | 5 | 1.02 | 0.007 | -0.89 | -3.0 | 24.02 | 610 |
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