Black polyethylene tubing 3/8" per metre, ref. A1NOIR38-TOURET

Black polyethylene tubing 3/8", per metre

Flexible polyethylene tube, outer diameter 3/8" or 9.52 mm. Supplied cut to length as ordered.

Applications: reverse osmosis unit feed and interconnection, links between filtration stages, inlet and outlet to pressure tank, line to point-of-use tap, water fountains and ice machines.

Diameter 3/8"

The 3/8" is the high-flow section, as opposed to 1/4" used on short domestic reverse osmosis lines.

Typical uses:

• tank outlet and line to tap, for rapid filling
• high-output reverse osmosis units
• long lines, where pressure drop from 1/4" becomes significant
• water fountains and professional equipment

Black tube

Black polyethylene is opaque. It blocks light, preventing algae growth in exposed line sections, and remains discreet when installed visibly.

As the interior is not visible, visual inspection of flow or empty line is not possible, unlike with transparent tubing.

Quick couplings

Compatible with John Guest, DMfit and compatible push-fit couplings in 3/8". Straight cut, insert to stop, the retaining clip locks and the O-ring ensures sealing. No adhesive or PTFE tape required on the tube connection.

Imperial 3/8" and metric 10 mm are not interchangeable: the diameter difference prevents the O-ring from seating correctly.

Cutting and assembly

• Cut with a tube cutter, straight cut, without crushing or angled cut. An irregular cut prevents the O-ring from seating around the full circumference.
• Insert to stop, beyond the retaining clip.
• Check locking by gently pulling on the tube.
• Allow a wide bend radius at the coupling outlet. 3/8" is stiffer than 1/4" and kinks at a tight angle.
• Do not clamp the tube immediately behind a connection.

Packaging

Sold per metre, cut to the length ordered. Measure the actual run and allow a margin.