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The 25539 is black LLDPE (linear low-density polyethylene) tubing used in trace gas analyzer systems usually downstream of the analyzer or for excess sample flow or purge flow that is not diverted to the analyzer. For tubing that carries sample air to the analyzer, it is recommended to use other types of tubing, such as HDPE tubing or tubing with an aluminum layer that limits gas diffusion (for example, pn 15702). The 25539 is replacement tubing for the tubing included with the DOAV502 and often used with the XDD1. Swagelok® fittings are sold separately.
| Maximum psi at 73°F | 150 |
| Bend Radius | 10.2 cm (4.0 in.) |
| Inner Diameter | 9.53 mm (0.375 in.) |
| Outer Diameter | 12.7 mm (0.5 in.) |
| Wall Thickness | 1.59 mm (0.0625 in.) |
| Length | 30.48 cm (12.0 in.) |
| Weight | 22.68 g (0.05 lb) |