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CPVC PIPE
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APPLICATION:
Corrosion resistant pressure pipe, IPS sizes 1/8" through 24",
for use at temperatures up to and including 200°F. Pressure
rating (130 psi to 1130 psi) varies with schedule, pipe size, and
temperature as shown on page 2 of this specification, and as stated
in Harvel Plastics, Inc. engineering bulletin (Product Bulletin
112/401). Generally resistant to most acids, bases, salts, aliphatic
solutions, oxidants, and halogens. Chemical resistance data is available
and should be referenced for proper material selection. Pipe exhibits
excellent flammability characteristics (ULC Listed for Surface Burning
Characteristics) and other physical properties. Typical applications
include: chemical processing, plating, high purity applications,
hot and cold potable water systems, water and wastewater treatment,
and other industrial applications involving hot corrosive fluid
transfer.
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SCOPE:
This specification outlines minimum manufacturing requirements for
Chlorinated Polyvinyl Chloride (CPVC) schedule 40 and 80 iron pipe
size (IPS) pressure pipe. This pipe is intended for use in industrial
systems where the fluid conveyed does not exceed 200°F. This
pipe meets and or exceeds the industry standards and requirements
as set forth by the American Society for Testing and Materials (ASTM)
and the National Sanitation Foundation (NSF).
CPVC MATERIALS:
The material used in the manufacture of the pipe shall be a rigid
chlorinated polyvinyl chloride (CPVC) compound, Type IV Grade I,
with a Cell Classification of 23447 as defined in ASTM D1784. This
compound shall be light gray in color, and shall be approved by
NSF for use with potable water. Material used shall be domestically
produced Corzan® CPVC material as provided by Noveon, Inc. (formerly
the BFGoodrich Company), or approved equal.
DIMENSIONS:
CPVC Schedule 40 and Schedule 80 pipe shall be manufactured in accordance
to the requirements of ASTM F441 for physical dimensions and tolerances.
Each production run of pipe manufactured in compliance to this standard,
shall also meet the test requirements for materials, workmanship,
burst pressure, flattening, and extrusion quality defined in ASTM
F441. All belled-end pipe shall have tapered sockets to create an
interference-type fit, which meet or exceed the dimensional requirements,
and the minimum socket length for pressure-type sockets, as defined
in ASTM D2672.
MARKING:
Product marking shall meet the requirements of ASTM F 441 and shall
include: the manufacturers name (or the manufacturers trademark
when privately labeled); the nominal pipe size; the material designation
code; the pipe schedule and pressure rating in psi for water @ 73°F;
the ASTM designation F 441; and the independent laboratory’s
seal of approval for potable water usage. Marking shall also include
the flame spread rating and smoke development rating when tested
and listed for surface burning characteristics per CAN/ULC S102.2
(Flame Spread (F.S.) of <25 and Smoke Development (S.D.) of <50).
| SAMPLE SPECIFICATION:
All CPVC Schedule 40 and schedule 80 pipe shall be manufactured
from a Type IV, Grade I Chlorinated Polyvinyl Chloride (CPVC)
compound with a minimum Cell Classification of 23447 per ASTM
D1784. The pipe shall be manufactured in strict compliance
to ASTM F441, consistently meeting the Quality Assurance test
requirements of this standard with regard to material, workmanship,
burst pressure, flattening, and extrusion quality. The pipe
shall be produced in the USA using domestic materials, by
an ISO 9001 certified manufacturer, and shall be stored indoors
after production, at the manufacturing site, until shipped
from factory. This pipe shall carry the National Sanitation
Foundation (NSF) seal of approval for potable water applications.
The pipe shall have a Flame Spread rating < 25 and a Smoke
Development rating < 50 when tested and listed for Surface
Burning Characteristics in accordance with CAN/ULC-S102-2-M88
or equivalent. All pipe shall be manufactured by HARVEL PLASTICS,
INC. |
Schedule 40
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Nom. Pipe Size (in) |
O.D. |
Average I.D. |
Min. Wall |
Nom. Wt./Ft. |
Max. W.P. PSI** |
| 1/4" |
0.540 |
0.344 |
0.088 |
0.096 |
780 |
| 3/8" |
0.675 |
0.473 |
0.091 |
0.128 |
620 |
| 1/2" |
0.840 |
0.602 |
0.109 |
0.190 |
600 |
| 3/4" |
1.050 |
0.804 |
0.113 |
0.253 |
480 |
| 1" |
1.315 |
1.029 |
0.133 |
0.371 |
450 |
| 1-1/4" |
1.660 |
1.360 |
0.140 |
0.502 |
370 |
| 1-1/2" |
1.900 |
1.590 |
0.145 |
0.599 |
330 |
| 2" |
2.375 |
2.047 |
0.154 |
0.803 |
280 |
| 2-1/2" |
2.875 |
2.445 |
0.203 |
1.267 |
300 |
| 3" |
3.500 |
3.042 |
0.216 |
1.660 |
260 |
| 3-1/2" |
4.000 |
3.521 |
0.226 |
1.996 |
240 |
| 4" |
4.500 |
3.998 |
0.237 |
2.363 |
220 |
| 6" |
6.625 |
6.031 |
0.280 |
4.164 |
180 |
| 8" |
8.625 |
7.942 |
0.322 |
6.268 |
160 |
| 10" |
10.750 |
9.976 |
0.365 |
8.886 |
140 |
| 12" |
12.750 |
11.889 |
0.406 |
11.751 |
130 |
| 14" |
14.000 |
13.073 |
0.437 |
13.916 |
130 |
| 16" |
16.000 |
14.940 |
0.500 |
18.167 |
130 |
| 18" |
18.000 |
16.809 |
0.562 |
22.965 |
130 |
20" |
20.000 |
18.743 |
0.593 |
29.976 |
120 |
24" |
24.000 |
22.544 |
0.687 |
37.539 |
120 |
Schedule 80
|
Nom. Pipe Size (in) |
O.D. |
Average I.D. |
Min. Wall |
Nom. Wt./Ft. |
Max. W.P. PSI** |
1/4" |
.540 |
.282 |
0.119 |
0.117 |
1130 |
3/8" |
.675 |
.403 |
0.126 |
0.162 |
920 |
1/2" |
.840 |
.526 |
0.147 |
0.238 |
850 |
3/4" |
1.050 |
.722 |
0.154 |
0.322 |
690 |
1" |
1.315 |
.936 |
0.179 |
0.473 |
630 |
1-1/4" |
1.660 |
1.255 |
0.191 |
0.654 |
520 |
1-1/2" |
1.900 |
1.476 |
0.200 |
0.793 |
470 |
2" |
2.375 |
1.913 |
0.218 |
1.097 |
400 |
2-1/2" |
2.875 |
2.290 |
0.276 |
1.674 |
420 |
3" |
3.500 |
2.864 |
0.300 |
2.242 |
370 |
3-1/2" |
4.000 |
3.326 |
0.318 |
2.735 |
350 |
4" |
4.500 |
3.786 |
0.337 |
3.277 |
320 |
6" |
6.625 |
5.709 |
0.432 |
6.258 |
280 |
8" |
8.625 |
7.565 |
0.500 |
9.506 |
250 |
10" |
10.750 |
9.493 |
0.593 |
14.095 |
230 |
12" |
12.750 |
11.294 |
0.687 |
19.392 |
230 |
14" |
14.000 |
12.410 |
0.750 |
23.261 |
220 |
16" |
16.000 |
14.213 |
0.843 |
29.891 |
220 |
18" |
18.000 |
16.014 |
0.937 |
35.419 |
220 |
20" |
20.000 |
17.814 |
1.031 |
45.879 |
220 |
24" |
24.000 |
21.418 |
1.218 |
64.959 |
210 |
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| ASTM STANDARD D1784 MATERIAL EQUIVALENTS:
Cell Classification 23447 = CPVC Type IV Grade I = CPVC 4120
PIPE SIZES SHOWN ARE MANUFACTURED IN STRICT COMPLIANCE WITH ASTM
F441
The pressure ratings given are for water, non-shock, @ 73°F.
The following temperature de-rating factors are to be applied to
the working pressure ratings listed when operating at elevated temperatures.
Multiply the working pressure rating of the selected pipe at 73°F,
by the appropriate de-rating factor to determine the maximum working
pressure rating of the pipe at the elevated temperature chosen.
EX: 10" CPVC SCH 80 @ 120°F = ?
230 psi x 0.65 =149.5 psi max. @ 120°F
THE MAXIMUM SERVICE TEMPERATURE FOR CPVC IS 200°F. |
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Operating Temp (°F) |
De-Rating Factor |
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Solvent-cemented joints should be utilized when working at or near
maximum temperatures. Harvel Plastics does not recommend the use
of CPVC for threaded connections at temperatures above 150°F;
use flanged joints, unions, or roll grooved couplings where disassembly
is necessary at elevated temperatures.
Threading of Sch 40 CPVC pipe is not a recommended practice due
to insufficient wall thickness. Thread only Sch 80 or heavier walls.
Threading requires a 50% reduction in pressure rating stated for
plain end pipe @73°F.
Chemical resistance data should be referenced for proper material
selection and possible de-rating when working with fluids other
than water. Refer to Harvel Plastics 112/401 Product Bulletin for
chemical resistance and installation data.
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