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 GF Harvel 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.

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 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 GF Harvel.

 

Schedule 40

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

 

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 PVC is 200°F.

Operating Temp (°F) De-Rating Factor
73-80 1.00
90 0.91
100 0.82
110 0.72
120 0.65
130 0.57
140 0.50
150 0.42
160 0.40
170 0.29
180 0.25
200 0.20

 

Solvent-cemented joints should be utilized when working at or near maximum temperatures. GF Harvel 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 GF Harvel 112/401 Product Bulletin for chemical resistance and installation data.