Duroflo, unplasticised PVC (uPVC or PVC-U) pressure pipe is a tried and tested system in the water reticulation sector. Duroflo pressure pipes are manufactured to the SABS 966 Part 1 specification, incorporating the traditional design tresses of 10 and 12.5 MPa. The product is ideally suited to applications in both pumping and gravity applications.

Dimensions:
Minimum wall thickness and mass per 6-metre length for each size and class currently manufactured:

Outside Dia. mm	Class 4	Class 6	Class 9	Class 12	Class 16	Class 20
mm	kg	mm	kg	mm	kg	mm	kg	mm	kg	mm	kg
16	–	–	–	–	–	–	–	–	1.5	.62	–	–
20	–	–	–	–	–	–	–		1.5	.72	–	–
25	–	–	–	–	–	–	1.5	1.01	1.9	1.25	–	–
32	–	–	–	–	1.5	1.31	1.8	1.55	2.4	2.03	–	–
40	–	–	1.5	1.65	1.8	1.96	2.3	2.47	3.0	3.16	–	–
50	1.5	2.08	1.8	2.48	2.2	3.00	2.8	3.77	3.7	4.88	–	–
63	1.5	2.63	1.9	3.31	2.7	4.64	3.6	6.09	4.7	7.80	–	–
75	1.5	3.15	2.2	4.57	3.2	6.56	4.3	8.67	5.6	11.07	–	–
90	1.8	4.53	2.7	6.73	3.9	9.58	5.1	12.34	6.7	15.89	–	–
110	2.2	6.77	2.6	8.14	3.9	12.11	5.1	15.67	6.7	20.29	8.2	24.48
125	2.5	8.91	3.0	10.66	4.4	15.53	5.8	20.25	7.6	26.15	9.3	31.55
140	2.8	11.19	3.3	13.19	4.9	19.37	6.5	25.41	8.5	32.75	10.4	39.51
160	3.2	14.64	3.8	17.36	5.6	25.32	7.4	33.10	9.7	42.76	11.9	51.73
200	3.9	22.40	4.7	26.92	7.0	39.68	9.2	51.62	12.1	66.92	14.9	81.24
250	4.9	35.33	5.9	42.46	8.7	62.68	11.5	81.12	15.1	105.03	18.6	127.58
315	6.2	56.44	7.4	67.28	11.0	99.04	14.5	129.29	19.0	167.12	–	–
355	7.0	72.19	8.4	86.55	12.4	126.57	16.3	164.83	21.4	213.49	–	–
400	7.9	90.90	9.4	109.40	14.0	161.41	18.4	210.21	24.1	276.6	–	–
450	8.9	121.4	10.6	139.39	15.7	204.60	20.7	271.3	27.1	349.4	–	–
500	9.8	148.0	11.8	172.59	17.4	252.34	22.9	333.4	–	–	–	–
560	11.0	182	13.2	217	19.5	318		–
630	12.5	232	14.8	274	21.9	401		–