National Plastic manufacturers a full range of high quality Linear Low Density Poly Tubing to both ASTM and Australian standards. These standards cover the widely accepted operating parameters of micro irrigation systems suitable for all climates throughout the world.
The tubing is made from the highest quality linear low density polyethylene (LLDPE) resin to give extra strength and durability. The raw material used in National Plastic tubing is specially formulated for use in drip tubing where high temperatures in the field are common. The tubing has excellent outdoor weather resistance with a minimum of 2.8% carbon black incorporated into the product.
Table I: Australian Standard Tubing
Manufactured to AUST STD 2698.1 - 1984 TYPE 30
| Ordering Code |
Nominal Inside Diameter |
Minimum Inside Diameter |
Minimum Wall Thickness |
Nominal Working Pressure |
Coil Size |
| in |
mm |
in |
mm |
in |
mm |
Bar |
Psi |
| DP 13 (12) |
1/2 |
13 |
.50 |
12.70 |
.047 |
1.2 |
3 |
45 |
250m |
| DP 13 (15) |
1/2 |
13 |
.05 |
12.70 |
.059 |
1.5 |
4 |
60 |
250m |
| DP 13 (18) |
1/2 |
13 |
.05 |
12.70 |
.071 |
1.8 |
4 |
60 |
250m |
| DP 16 (12) |
1/2 |
16 |
.62 |
15.80 |
.047 |
1.2 |
3 |
45 |
250m |
| DP 19 (13) |
3/4 |
19 |
.74 |
18.90 |
.051 |
1.3 |
3 |
45 |
250m |
| DP 25 (15) |
1 |
25 |
1.00 |
25.20 |
.059 |
1.5 |
3 |
45 |
250m |
| DP 32 (20) |
1 ¼ |
32 |
1.24 |
31.50 |
.078 |
2.0 |
3 |
45 |
250m |
All the above tubing can accept most insert fittings available in the market such as Driptek™ or Drip Loc™ fittings. The pipe carries full marking in accordance with the standard.
National Plastic drip tube is tested to withstand a long term hydrostatic test pressure of 10 bars (150 psi) in accordance with the Australian Standard. The tubing will suit most design applications and provides a good seal around emitter, jets or take-off barbs.
A full range of fittings and accessories are available to suit the tube.
