uPVC PRESSURE PIPE
BS. 3505:1986 / BS.3506

Nominal
Size
Mean Outside
Diameter
Wall Thickness
Class B
Class C
Class D
Class E
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Inches
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
1/2
21.2
21.2
-
-
-
-
-
-
1.7
2.1
3/4
26.6
26.9
-
-
-
-
-
-
1.9
2.5
1
33.4
33.7
-
-
-
-
-
-
2.2
2.7
1 - 1/4
42.1
42.4
-
-
-
-
2.2
2.7
2.7
3.2
1 - 1/2
48.1
48.4
-
-
-
-
2.5
3.0
3.1
3.7
2
60.2
60.5
-
-
2.5
3.0
3.1
3.7
3.9
4.5
2 - 1/2
75.0
75.3
-
-
3.0
3.5
3.9
4.5
4.8
5.5
3
88.7
89.1
2.9
3.4
3.5
4.1
4.6
5.3
5.7
6.6
4
114.1
114.5
3.4
4.0
4.5
5.2
6.0
6.9
7.3
8.4
5 *
140.0
140.4
3.8
4.4
5.5
6.4
7.3
8.4
9.0
10.4
6
168.0
168.5
4.5
5.2
6.6
7.6
8.8
10.2
10.8
12.5
8
218.8
219.4
5.3
6.1
7.8
9.0
10.3
11.9
12.6
14.5
9
244.1
244.8
5.9
6.8
8.7
10.0
11.5
13.3
14.1
16.3
10
272.6
273.4
6.6
7.6
9.7
11.2
12.8
14.8
15.7
18.1
12
323.4
324.3
7.8
9.0
11.5
13.3
15.2
17.5
18.7
21.6
14
355.0
356.0
8.5
9.8
12.6
14.5
16.7
19.2
20.5
23.6
16
405.9
406.9
9.7
11.2
14.5
16.7
19.0
21.9
23.4
27.0

* Produced only to specific order

Stocks are available with plain ends or with sockets in standard lengths of 4 m. or 6 m.

Pressure ratings for working pressure at 20 o C

Class B
6.0 bar
86.7 lbf / in 2
200 ft. head
C
9.0 bar
130.0 lbf / in 2
200 ft. head
D
12.0 bar
173.0 lbf / in 2
400 ft. head
E
15.0 bar
217.0 lbf / in 2
500 ft. head

For higher working temperatures, the pressure rating should be reduced.

Qatar National Plastic Factory
( A Member of Al Attiyah Group )
P.O. Box 5615 - Doha - Qatar
Tel.: 4689977 (4 lines) - Fax: 4689922 - Email: qnpf@qatar.net.qa