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UPVC Pressure Pipe For Cold Potable Water
American Standard Range

Class 100, 125, 160, 200, 315 To ASTM D 2241
SCH 40, SCH 80 To ASTM D 1785 - 76


National Plastic produces a range of UPVC Pipes strictly in accordance with the ASTM standard on dimensions, materials and workmanship. The pipe is manufactured from 100% virgin unplasticized Polyvinyl Chloride compound. No re-worked material is used.

PRESSURE RATINGS

The pipe is produced in a number of pressure ratings: 100, 125, 160, 200 and 315 psi rating at 73°F (23°C). For Sch 40 and Sch 80 pipes, the pressure rating varies with the size (see table 1). As temperature increases, the pressure rating of the pipe decreases and an appropriate de-rating factor should be applied as follows :-



Working Temp
*De-Rating Multiplier
°C
°F
23
73
1.00
27
80
0.88
32
90
0.75
38
100
0.62
43
110
0.51
Operating at higher temperature and exceeding 140°F (60°C) is not recommended.
*To be multiplied over maximun operating pressures listed in table 1.



Table 1

Maximun operating pressure at 73.4°F (23°C) in Psi

Pipe
Size
Class
100
SRD 41
Class
125
SDR 32.5
Class
160
SDR 26
Class
200
SDR 21
Class
315
SDR 13.5
Schedule
40
Schedule
80
Plain End
Schedule
80
Threaded
1/2
100
125
315
315
315
600
850
420
3/4
100
125
200
200
315
480
690
340
1
100
125
160
200
315
450
630
320
1-1/4
100
125
160
200
315
370
520
260
1-1/2
100
125
160
200
315
330
470
240
2
100
125
160
200
315
280
400
200
2-1/2
100
125
160
200
315
300
420
210
3
100
125
160
200
315
260
370
190
4
100
125
160
200
315
220
320
160
6
100
125
160
200
315
180
280
140
8
100
125
160
200
315
160
250
110
10
100
125
160
200
-
-
-
-
12
100
125
160
200
-
-
-
-


Information contained in this site is provided as a preliminary guide for designers. Interpretation and application are functions of the user.


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Pressure Pipe