Clear PVC Pipe

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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 GF Harvel 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.

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 GF Harvel.

 

Schedule 40

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

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

 

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® 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.

EX: 4” PVC SCH 40 CLEAR @ 120°F = ?
110 psi x 0.40 = 44 psi max. @ 120°F
The maximum service temperature for PVC is 140°F.

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

 

Solvent-cemented joints should be utilized when working at or near maximum temperatures. GF 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 GF 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.