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Schedule 40 & Schedule 80 PVC Pipe Specifications

APPLICATION

Corrosion resistant pressure pipe, IPS sizes 1/4" through 24", for use at temperatures up to and including 140°F. Pressure rating (120 psi to 1230 psi) varies with schedule, pipe size, and temperature. 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 physical properties and flammability characteristics. Typical allications include: chemical processing, plating, high purity applications, potable water systems, water and wastewater treatment, drainage, irrigation, agricultural, and other applications involving corrosive fluid transfer.

SCOPE

This specification outlines minimum manufacturing requirements for Polyviny Chloride (PVC) Schedule 40 & Schedule 80 iron pipe size (IPS) pressure pipe. This pipe is intended for use in applications where the fluid conveyed does not exceed 140°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 International).

PVC MATERIALS

The material used in the manufacture of the pipe shall be rigid polyvinyl chloride (PVC) compound, Type 1 Grade 1, with a Cell Classification of 12454 as defined in ASTM D1784, trade name designation H707 PVC. This compound shall be white or gray in color as specified, and shall be approved by NSF International for use with potable water (NSF Std 61).

DIMENSIONS

All sizes of PVC Schedule 40 & Schedule 80 pipe shall be manufactured in strict accordance to the requirements of ASTM D1785 for physical dimensions and tolerances. Each prodution run of pipe manufactured in compliance to this standard, shall also meet or exceed the test requirements for materials, workmanship, burst pressure, flattening, and extrusion quality defined in ASTM D1785. All belled-end pipe shall have tapered sockets to create an interferenceptype fit, which meet or exceed the dimensional requirements and the minimum socket length for pressure-type sockets as defined in ASTM D2672. All PVC Schedule 80 pipe must also meet the requirements of NSF Standard 14 and CSA Standard B137.3 rigid PVC pipe for pressure applications, and shall bear the mark of these Listing agencies. This pipe shall have a flame spread rating of 0-25 when tested for surface burning characteristics in accordance with CAN/ULC-S102-2-M88 or equivalent.

Schedule 40 PVC Pipe Dimensions
PIPE SIZE O.D. AVE.
I.D.
MIN
WALL
NOM.
WEIGHT
(Wt./ft.)
MAX.
W.P.
PSI
1/4" .540 .344 .088 .086 780
3/8" .675 .473 .091 .115 620
1/2" .840 .602 .109 .170 590
3/4" 1.050 .804 .113 .226 480
1" 1.315 1.029 .133 .333 450
*1-1/4" 1.660 1.360 .140 .450 370
*1-1/2" 1.900 1.590 .145 .537 330
*2" 2.375 2.047 .154 .720 280
2-1/2" 2.875 2.445 .203 1.136 300
*3" 3.500 3.042 .216 1.488 260
3-1/2" 4.000 3.521 .226 1.789 240
*4" 4.500 3.998 .237 2.118 220
5" 5.563 5.016 .258 2.874 190
*6" 6.625 6.031 .280 3.733 180
*8" 8.625 7.942 .322 5.619 160
*10" 10.750 9.976 .365 7.966 140
*12" 12.750 11.889 .406 10.534 130
*14" 14.000 13.073 .437 12.462 130
*16" 16.000 14.940 .500 16.286 130
*18" 18.000 16.809 .562 20.587 130
*20" 20.000 18.743 .593 24.183 120
*24" 24.000 22.544 .687 33.652 120
Schedule 80 PVC Pipe Dimensions
PIPE SIZE O.D. AVE.
I.D.
MIN
WALL
NOM.
WEIGHT
(Wt./ft.)
MAX.
W.P.
PSI
1/4" .540 .282 .119 .105 1130
3/8" .675 .403 .126 .146 920
1/2" .840 .526 .147 .213 850
3/4" 1.050 .722 .154 .289 690
1" 1.315 .936 .179 .424 630
1-1/4" 1.660 1.255 .191 .586 520
1-1/2" 1.900 1.476 .200 .711 470
2" 2.375 1.913 .218 .984 400
2-1/2" 2.875 2.290 .276 1.500 420
3" 3.500 2.864 .300 2.010 370
3-1/2" 4.000 3.326 .318 2.452 350
4" 4.500 3.786 .337 2.938 320
5" 5.563 4.768 .375 4.078 290
6" 6.625 5.709 .432 5.610 280
8" 8.625 7.565 .500 8.522 250
10" 10.750 9.493 .593 12.635 230
12" 12.750 11.294 .687 17.384 230
14" 14.000 12.410 .750 20.852 220
16" 16.000 14.213 .843 26.810 220
18" 18.000 16.014 .937 33.544 220
20" 20.000 17.814 1.031 41.047 220
24" 24.000 21.418 1.218 58.233 210

*Sizes are marked as being in compliance with ASTM D1785 (pressure pipe) and ASTM D2665 (drain, waste & vent pipe--DWV).

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.

OPERATING
TEMPERATURE (°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

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.

EXAMPLE: 10" PVC SCHEDULE 80 @ 120°F = ?
230 psi x 0.40 = 92 psi max. @ 120°F

THE MAXIMUM SERIVCE TEMPERATURE FOR PVC IS 140°F.

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

Threading of Schedule 40 PVC pipe is not a recommended practice due to insufficient wall thickness. Thread only Schedule 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.

ASTM STANDARD D1784 MATERIAL EQUIVALENTS: Cell Classification 12454 = PVC Type 1 Grade 1 = PVC 1120

Pipe sizes shown are manufactured in strict compliance with ASTM D1785

General Specifications for Standard Schedule 40 and Schedule 80 PVC Fabricated Drainage Fittings

Scope

This specification is applicable to fabricated fittings, as furnished by Harrison Machine & Plastic Corporation, as they pertain to (PVC) Polyvinyl Chloride Schedule 40 & Schedule 80 fitting configurations.

Materials of Construction

(PVC) Polyvinyl Chloride

Fittings are to be manufactured from PVC material which meets or exceeds the requirements of ASTM D-1784, cell classification 12454B, Type 1, Grade 1.

Pressure pipe used in fabrication must conform to ASTM D-1785 (Schedule 40 & Schedule 80) or ASTM D-2241 (SDR-26 & SDR-41) and listed by the National Sanitation Foundation (NSF) for potable water applications.

Sheet stock material (where used) must conform to ASTM D-1784, cell classification 12454B, Type 1, Grade 1, normal impact, and manufactured without the use of plasticizers or fillers.

Solvent Cement and Welding Rod (PVC)

All solvent cements used, to conform to ASTM D-2564, listed by NSF for potable use applications

Welding rod used in the manufacture of the above fittings, shall conform to ASTM D-1784, cell class 12454B for PVC

Assembly and Construction Procedures

Fittings shall be Butt Fusion (machine) welded where feasible or hand welded (fillet welded) by qualified and experienced craftsman trained in the art of thermoplastic welding and fabrication.

PVC Schedule 40 fittings will be white or gray in color (this color code applies to both pressure and drainage patterns)

Fitting diameters, 18", 20", & 24", as a customer option, may also be constructed from SDR-26 or SDR-41 pipe dependent upon the pressure rating required (i.e. 160 psi or 100 psi).

Dimensional Specifications

All cataloged fitings to be constructed in accordance with Harrison Machine and Plastic Corporation, published drawings. Non-cataloged fittings will be furnished in accordance to or as agreed upon customer specifications.

All female sockets shall have an interference fit with corresponding size pipe. Refer to Table 2

Component cut length dimension tolerances of ±.500"

Angle (change of direction tolerances of ±2°

Product Quality

All fitting welds (hand and machine) shall be 100% spark tested

Fiberglass reinforced fittings shall be as free as possible from visual defects such as foreign inclusions, air bubbles or delamination

Random inspection performed daily by floor supervisor

TABLE 1
Pertains to pipe stock used in fabrication (fittings are not pressure rated)
Maximum Working Pressure (psi) @ 73°F
Size 4" 6" 8" 10" 12" 14" 16" 18" 20" 24"
SDR-41 100 100 100 100 100 100 100 100 100 100
SDR-26 160 160 160 160 160 160 160 160 160 160
Sch 40 220 180 160 140 130 130 130 130 130 130
Sch 80 320 280 250 230 230 220 220 220 220 220
TABLE 2
Tapered Belled/Socket Dimensions for PVC & CPVC Schedule 40 & Schedule 80 Fittings
  Socket Entrance Socket Bottom Socket Depth
Nominal
Pipe Size
I.D.
Minimum
I.D.
Maximum
I.D.
Minimum
I.D.
Maximum
Schedule 40 Schedule 80
4" 4.509" 4.527" 4.482" 4.500" 1.875" 1.875"
6" 6.636" 6.658" 6.603" 6.625" 3.000" 3.000"
8" 8.640" 8.670" 8.595" 8.625" 4.000" 4.000"
10" 10.761" 10.791" 10.722" 10.752" 5.000" 5.000"
12" 12.763" 12.793" 12.721" 12.751" 6.000" 6.000"
14" 14.030" 14.045" 13.985" 14.000" 7.000" 7.000"
16" 16.037" 16.052" 15.985" 16.000" 8.000" 8.000"
18" 18.041" 18.056" 17.985" 18.000" 9.000" 9.000"
20" 20.045" 20.060" 19.985" 20.000" 10.000" 10.000"
24" 24.060" 24.075" 24.000" 24.015" 12.000" 12.000"

General Specifications for Standard Schedule 40 & Schedule 80 PVC Fabricated Pressure Fittings

Scope

This specification is applicable to fabricated fittings, as furnished by Harrison Machine & Plastic Corporation, as they pertain to (PVC) Polyvinyl Chloride Schedule 40 & Schedule 80 fitting configurations.

Materials of Construction

(PVC) Polyvinyl Chloride

Fittings are to be manufactured from PVC material which needs or exceeds the requirements of ASTM D-1784, cell classification 12454B, Type 1, Grade 1.

Pressure pipe used in fabrication must conform to ASTM D-1785 (Schedule 40/80) or ASTM D-2241 (SDR-26/41) and listed by the National Sanitation Foundation (NSF) for potable water applications.

Sheet stock material (where used) must conform to ASTM D-1784, cell classification 12454B, Type 1, Grade 1, normal impact, manufactured without the use of plasticizers or fillers.

Solvent Cement and Welding Rod (PVC)

All solvent cements used, conform to ASTM D-2564, listed by NSF for potable use applications.

Welding rod used in the manufacture of the above fittings, shall conform to ASTM D-1784, cell class 12454B for PVC, and shall be of a material compatible with the corresponding pipe/sheet stock.

Assembly/Construction Procedures

Fittings shall be Butt Fusion (machine) welded where feasible or hand welded (fillet welded) by qualified and experienced craftsman trained in the art of thermoplastic welding and fabrication.

All pressure fittings, with the exception of formed elbows, couplings, reducer couplings and reducer bushings will be 100% fiberglass reinforced with multiple layers or mat and resin to increase the base pressure rating of the fitting to meet or exceed the desired performance pressure rating of the corresponding diameter and wall Schedule of pipe. Refer to Table 1.

PVC Schedule 40 fittings will be white in color, while PVC Schedule 80 fittings will be dark gray in color. This color code applies to both pressure and drainage patterns.

Fitting diameters, 18", 20", & 24" as a customer option, may also e constructed from SDR-26 or SDR-41 pipe dependent upon the pressure rating required (i.e. 160 psi or 100 psi).

Dimensional Specifications

All cataloged fittings to be furnished in accordance with Harrison Machine and Plastic Corporation, published drawings. Non-cataloged fittings will be furnished in accordance to or as agreed upon customer specifications.

All female sockets shall have an interference fit with corresponding size pipe. Refer to Table 2

Component cut length tolerances of ±.500".

Angle (change of direction) tolerances of ±2°.

Product Quality

All fitting welds (hand and machine) shall be 100% spark tested

Fiberglass reinforced fittings shall be as free as possible from visual defects such as foreign inclusions, air bubbles or delamination

Random inspection performed daily by floor supervisor

TABLE 1
Pertains to pipe stock used in fabrication (fittings are not pressure rated)
Maximum Working Pressure (psi) @ 73°F
Size 4" 6" 8" 10" 12" 14" 16" 18" 20" 24"
SDR-41 100 100 100 100 100 100 100 100 100 100
SDR-26 160 160 160 160 160 160 160 160 160 160
Sch 40 220 180 160 140 130 130 130 130 130 130
Sch 80 320 280 250 230 230 220 220 220 220 220
TABLE 2
Tapered Belled/Socket Dimensions for PVC & CPVC Schedule 40 & Schedule 80 Fittings
  Socket Entrance Socket Bottom Socket Depth
Nominal
Pipe Size
I.D.
Minimum
I.D.
Maximum
I.D.
Minimum
I.D.
Maximum
Schedule 40 Schedule 80
4" 4.509" 4.527" 4.482" 4.500" 1.875" 1.875"
6" 6.636" 6.658" 6.603" 6.625" 3.000" 3.000"
8" 8.640" 8.670" 8.595" 8.625" 4.000" 4.000"
10" 10.761" 10.791" 10.722" 10.752" 5.000" 5.000"
12" 12.763" 12.793" 12.721" 12.751" 6.000" 6.000"
14" 14.030" 14.045" 13.985" 14.000" 7.000" 7.000"
16" 16.037" 16.052" 15.985" 16.000" 8.000" 8.000"
18" 18.041" 18.056" 17.985" 18.000" 9.000" 9.000"
4" 20.045" 20.060" 19.985" 20.000" 10.000" 10.000"
24" 24.060" 24.075" 24.000" 24.015" 12.000" 12.000"

Solvent Cement Joining Recommendations (Large Diameter PVC Joints)

These quidelines specifically address recommended procedures required in successfully making solvent weld joints for large diameter systems (i.e. 8" through 24"). Solvent cemented joints represent the final important steps in making the system either a success or a failure. It is imporant that these instructions are carefully followed.

Important to all successful solvent weld joints there are "FOUR" important ingredients:

  1. It is essential that surfaces to be cemented are clean and free of foreign matieral. If permitted to remain, grease, oil, ink, etc. can interfere with the solvent cementing process and reduce the strength of the bond.
  2. Joining surfaces (pipe & fitting) must be dissolved and made soft.
  3. Sufficient cement must be applied to fill gaps beween pipe & fitting.
  4. Assembly of pipe & fitting must be made while the surfaces are both wet and fluid

Large diameter joints are very similar to those for smaller diameters, in that both have tapered sockets. Tapered sockets have the capability of providing a fused joint at the socket bottom and a bonded joint at the top of the socket, resulting in a quality seal particularly in pressure applications. Tapered sockets, however, also result in a situation wher ethe pipe will tend to "push-out" immediately after the pipe is inserted into the fitting socket. Care must be taken to hold the pipe in place until the cement begins to set.

As with any solvent cemented joints, the pipe must be cut square and cleaned. Large diameter PVC pipe may be cut with a skill-saw and a carbide tipped blade. A circular blade with 20 or less teeth is preferred over a finer blade with tends to heat the PVC material as it cuts, resulting in a molten PVC residue producing a rough cut. The use of a "pipe-belt" is recommended to ensure a straight cut.

After the pipe is cut to length, the outside and inside edges are to be deburred. This can be easily achieved by scraping these edges with a sharp edged piece of steel (i.e. file). This is a relatively easy step and only takes a few moments, but is a critical step.

Two or more pipe fitters are stongly recommended when making large diameter joints due to the bulk and weight of the system as well as the need to apply cement and primer as quickly as possible.

Align the pipe & fitting as close to its final position as possible. Elevate both the pipe & fitting so that the entire circumference is accessible.

Mechanical devices, such as come-alongs, are strongly recommended to pull the pipe into the fitting socket. The use of chains to "grasp" the pipe is an option but they may also slip. Sufficient cable or chain, enough to run the entire length of 20 foot joint(s) of pipe, must be laid out on either side of the joint, prior to assembly. Additional cable must be added in order to secure it to a 4x4 block, extending approximately 1 foot beyond the pipe on side. Cumbersome as it might appear, this method offers a more positive pull than other methods.

(Note: A chain sling may be used on the fittings providing it results in a "straight" pull.)

At this point, available manpower working in unison, is used to keep all components in place. Be sure the pipe & fitting are free to trasvel the required distance to seat at the fitting socket bottom. Mark the depth of the socket on the pipe, plus six inches, as an indication of pipe insertion depth. The two cable come-alongs are immediately hooked up at 3:00 and 9:00, so that after application of primer and solvent the joint may be pulled togeher.

When the chains (cables) are in place joint preparation now takes place.

PC-64 Primer-Cleaner, clean pipe and fitting surfaces with a cotton rag to remove any moisture and excessive dirt.

After properly cleaning pipe surfaces, using PC-64 Primer-Cleaner and a 3" to 4" wide brush, liberally apply the primer so that it flows on to and soaks into the plastic, resulting in a softening of the surfaces for maximum weldability. The primer should be applied to the pipe ends and to an area equal to the corresponding fitting socket depth plus approximately 4 inches. The primer will remove the glossy surface, dirt and surface printing. A properly primed surface will have a uniform dull surface which will beging to soften.

Prime the fitting socket in the same manner as described above. A second coating of primer may then be needed on the pipe to assure wet surfaces

Using Gray Medium-Body Cement, liberally apply the solvent, again using a 3" to 4" brush, to both the fitting socket and pipe surface. Do not overbrush the solvent. When done properly, very little of the surface areas, to be joined should be visible A thick even coat is needed to fill the gap between pipe & fitting.

Note: It may be advisable to pour the primer and solvent into larger "wide-mouth" containers, prior to use to accomodate the 3" to 4" brushes.

Important: It is advisable to utilize two or more pipe fitters. One will apply primer/solvent to the fitting socket and the other to the pipe surface, simultaneously and quickly. The joint surfaces must be fluid when making the joint.

Using the come-along, pull joint together, drawing the pipe into the fitting socket until the pipe has reached the fitting stop (socket bottom). Observe the previously measured pipe markings to ensure pipe that the pipe is seated. At this point, the cement will ooze toward the bottom of the pipe and fill a small section inside the fitting. Remove as much visible excess cement as can be reached. One very large diameter systems, "Do not venture inside the system to inspect the joint or to clean the solvent. The fumes can be dangerous."

Any excess solvent on the outside of the joint should also be removed, to avoid puddling and for appearance.

Continue come-along pressure, holding the pipe into the fitting socket for approximately 15 minutes (or until the solvent begins to set-up), to prevent the pipe from "pushing-out".

Pressure test the system only after the joints have cured. Refer to curing schedules as defined by the solvent manufacturer which are primarily dependent upon temperature.

The above are recommendations only. Site conditions vary greatly. Harrison Machine & Plastic Corporation cannot be held responsible for results.

Equipment Needed for Installation/Assembly
 
Tape Measure Pipe Belt File Clean Cotton Rags
Come-Alongs Primer Patience Pencil
Saw & Circular Blade   Cement Cleaner
Buckets 3" to 4" Brushes