Nominal Size	Wall Thickness
	Series 2	Series 3	Series 4	Series 5
	4 bar	6 bar	10 bar	16 bar
mm	mm	mm	mm	mm
20	-	-	-	1.5
25	-	-	1.5	1.9
32	-	-	1.8	2.4
40	-	1.8	1.9	3.0
50	-	1.8	2.4	3.7
63	-	1.9	3.0	4.7
75	1.8	2.2	3.6	5.6
90	1.8	2.7	4.3	6.7
110	2.2	3.2	5.3	8.2
125	2.5	3.7	6.0	9.3
140	2.8	4.1	6.7	10.4
160	3.2	4.7	7.7	11.9
200	4.0	5.9	9.6	14.9
225	4.5	6.6	10.8	16.7
250	4.9	7.3	11.9	18.6
280	5.5	8.2	13.4	20.8
315	6.2	9.2	15.0	23.4
355	7.0	10.4	16.9	26.3
400	7.9	11.7	19.1	29.7

Stocks are availabe with plain ends or with sockets in standard lengths of 6 metres.

Working pressures are given for a temperature of 20 ^o C

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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