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CLEAR PVC
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APPLICATION:
Corrosion resistant CLEAR pressure pipe, IPS sizes 1/4” through
12”, for use at temperatures up to and including 140 °F.
Pressure rating (70 psi to 570 psi) varies with schedule, pipe size,
and temperature as stated on page 2 of this specification and in
Harvel Plastics, Inc. Clear bulletin (Product Bulletin HPB-107).
Generally resistant to most acids, bases, salts, aliphatic solutions,
oxidants, and halogens. Chemical resistance data should be referenced
for proper material selection. Pipe exhibits excellent physical
properties and optimum clarity. Typical applications include process,
sight glass, and dual containment piping as found in chemical processing,
high purity applications, food processing, pharmaceuticals, laboratory
use, waste treatment, plating, and other applications involving
fluid transfer where visual monitoring of process lines is warranted.
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SCOPE:
This specification outlines minimum manufacturing requirements for
CLEAR Polyvinyl Chloride (PVC) Schedule 40 and Schedule 80 iron
pipe size (IPS) pressure pipe. This pipe is intended for use in
systems where the fluid conveyed does not exceed 140°F. This
pipe meets and or exceeds applicable industry standards and requirements
as set forth by the American Society for Testing and Materials (ASTM).
PVC MATERIALS:
The material used in the manufacture of the pipe shall be a rigid
polyvinyl chloride (PVC) compound, with a Cell Classification of
12454 as defined in ASTM D1784. This compound shall comply with
the provisions of Title 21 United States FDA Code of Federal Regulations
and shall be safe for use with food contact applications. This compound
shall be transparent in color, and shall be approved by NSF International
for use with potable water (NSF Std 61).
DIMENSIONS:
PVC Clear Schedule 40 and Schedule 80 pipe shall be manufactured
in strict accordance with the dimensional requirements of ASTM D1785
to Schedule 40 or Schedule 80 dimensions and tolerances as applicable.
All PVC Clear pipe shall meet the minimum burst pressure requirements
and water pressure rating requirements of PVC Type II, Grade I,
established for PVC 2110 as defined in ASTM D1785. Each production
run of pipe shall also meet or exceed the test requirements for
materials, workmanship, flattening, and extrusion quality defined
in ASTM D1785. 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:
All Clear PVC Schedule 40 and Schedule 80 pipe shall be permanently
embossed with the manufacturers name or (or the manufacturers trademark
when privately labeled), pipe size, dimension (i.e. Sch 40 or Sch
80), and date and time of manufacture.
SAMPLE SPECIFICATION:
All PVC Schedule 40 & Schedule 80 CLEAR pipe shall be
manufactured from a Type I, Grade I Polyvinyl Chloride (PVC)
compound with a Cell Classification of 12454 per ASTM D1784.
The pipe shall be manufactured in strict compliance to ASTM
D1785, consistently meeting and/or exceeding the applicable
Quality Assurance test requirements of this standard with
regard to material, dimensions, workmanship, burst pressure,
flattening, and extrusion quality. The pipe shall be manufactured
in the USA by an ISO 9001 certified manufacturer. All PVC
CLEAR pipe shall be packaged immediately after its manufacture
to prevent damage, and shall then be stored indoors at the
manufacturing site until shipped from factory. All pipe shall
be manufactured by HARVEL® PLASTICS, INC. |
Schedule 40
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Nominal Pipe Size (in) |
O.D. |
Average I.D. |
Min. Wall |
Nominal Wt./Ft. |
Max. W.P. PSI** |
1/4" |
0.540 |
0.344 |
0.088 |
0.086 |
390 |
3/8" |
0.675 |
0.473 |
0.091 |
0.115 |
310 |
1/2" |
0.840 |
0.602 |
0.109 |
0.170 |
300 |
3/4" |
1.050 |
0.804 |
0.113 |
0.226 |
240 |
1" |
1.315 |
1.029 |
0.133 |
0.333 |
220 |
1-1/4" |
1.660 |
1.360 |
0.140 |
0.450 |
180 |
1-1/2" |
1.900 |
1.590 |
0.145 |
0.537 |
170 |
2" |
2.375 |
2.047 |
0.154 |
0.720 |
140 |
2-1/2" |
2.875 |
2.445 |
0.203 |
1.136 |
150 |
3" |
3.500 |
3.042 |
0.216 |
1.488 |
130 |
3-1/2" |
4.000 |
3.521 |
0.226 |
1.789 |
120 |
4" |
4.500 |
3.998 |
0.237 |
2.118 |
110 |
6" |
6.625 |
6.031 |
0.280 |
3.733 |
90 |
6" X 1/8 |
6.625 |
6.335 |
0.125 |
1.647 |
45 |
8" |
8.625 |
7.942 |
0.322 |
5.619 |
80 |
10" |
10.750 |
9.976 |
0.365 |
7.532 |
70 |
12" |
12.750 |
11.890 |
0.406 |
9.949 |
70 |
Schedule 80
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Nominal Pipe Size (in) |
O.D. |
Average I.D. |
Min. Wall |
Nominal Wt./Ft. |
Max. W.P. PSI** |
1/4" |
.540 |
.282 |
0.119 |
0.105 |
570 |
3/8" |
.675 |
.403 |
0.126 |
0.146 |
460 |
1/2" |
.840 |
.526 |
0.147 |
0.213 |
420 |
3/4" |
1.050 |
.722 |
0.154 |
0.289 |
340 |
1" |
1.315 |
.936 |
0.179 |
0.424 |
320 |
1-1/4" |
1.660 |
1.255 |
0.191 |
0.586 |
260 |
1-1/2" |
1.900 |
1.476 |
0.200 |
0.711 |
240 |
2" |
2.375 |
1.913 |
0.218 |
0.984 |
200 |
2 1/2" |
2.875 |
2.289 |
0.276 |
1.419 |
210 |
3" |
3.500 |
2.864 |
0.300 |
2.010 |
190 |
4" |
4.500 |
3.786 |
0.337 |
2.938 |
160 |
6" |
6.625 |
5.709 |
0.432 |
5.313 |
140 |
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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.
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 (WP) 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.
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| Operating Temp °F |
De-rating Factor |
| 73 |
1.00 |
| 80 |
0.88 |
| 90 |
0.75 |
| 100 |
0.62 |
| 110 |
0.51 |
| 120 |
0.40 |
| 130 |
0.31 |
| 140 |
0.22 |
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EX: 4” PVC SCH 40 CLEAR @ 120°F
= ?
110 psi x 0.40 = 44 psi max. @ 120°F
THE MAXIMUM SERVICE TEMPERATURE FOR PVC CLEAR IS 140°F.
Solvent-cemented joints should be utilized when working at or near
maximum temperatures. Harvel® Plastics does not recommend the
use of PVC for threaded connections at temperatures above 110°F;
use flanged joints, unions, or roll grooved couplings where disassembly
is necessary at elevated temperatures.
Threading of Sch 40 PVC Clear pipe is not a recommended practice
due to insufficient wall thickness.
Note: Although Harvel Clear maintains its physical
properties when exposed to many substances, exposure to certain
chemicals can affect the clarity of the product overtime. Certain
nitrogen containing organics, bleaches, oxidative agents and acids
may result in discoloration. Testing under actual use conditions
is recommended.
Exposure to sunlight (U.V.R.) will also affect clarity. Clear products
do not contain U.V. stabilizers and are not recommended for outdoor
use unless adequate protection is applied.
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