Flow Rate of PVC Pipes for Schedule 40 and 80

PVC Flow Chart

Hello People; today, I will discuss all the possible details regarding PVC pipe flow rates. So without further ado, let’s get started.

Water pressure and flow rates through PVC pipes are one of the topics discussed in the piping community.

Still, to break the ice, the question doesn’t have a straight fit to all answers as other factors like material friction and application must be considered.

Flow rate pertains to the quantity of fluid that passes through a pipe within a specified time frame, typically measured in liters per minute or gallons per minute.

The significance of PVC pipe flow rates lies in their influence on the system’s effectiveness and the duration it takes for the fluid to move through the pipes.

PVC Pipe Flow Chart for Schedule 40 PVC Pipe 

1/2 Inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ftH2O/100 ft)
Friction Loss
(psi/100 ft)
1601.12.10.9
21202.34.21.8
53005.623.410.5
74207.943.118.6
1060011.38235.5
3/4 Inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
1600.60.50.2
21201.310.4
53003.25.72.5
74204.410.54.6
106006.3208.7
159009.542.518.4
20120012.772.331.3
1 Inch
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
21200.80.60.2
53001.91.70.8
74202.73.21.4
106003.962.6
159005.812.85.5
2012007.721.89.4
2515009.732.914.2
30180011.646.120
1 1/4 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
21200.40.10.1
53001.10.40.2
74201.60.80.4
106002.21.60.7
159003.33.31.4
2012004.45.62.4
2515005.58.53.7
3018006.611.95.1
3521007.715.86.8
4024008.820.28.7
4527009.925.110.9
50300011.130.513.2
1 1/2 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
21200.30.10.03
53000.80.20.1
74201.10.40.2
106001.60.70.3
159002.41.50.7
2012003.22.61.1
251500441.7
3018004.95.52.4
3521005.77.43.2
4024006.59.44.1
4527007.311.75.1
5030008.114.36.2
6036009.7208.7
2 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
53000.50.070.03
74200.70.10.05
1060010.20.09
159001.50.50.2
20120020.80.3
2515002.41.20.5
3018002.91.60.7
3521003.42.20.9
4024003.92.81.2
4527004.43.41.5
5030004.94.21.8
6036005.95.82.5
7042006.87.83.4
7545007.38.83.8
8048007.89.94.3
9054008.812.45.4
10060009.8156.5
2 1/2 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
53000.30.040.02
74200.50.050.02
106000.70.10.04
1590010.20.08
2012001.40.30.1
2515001.70.50.2
3018002.10.70.3
3521002.40.90.4
4024002.71.20.5
4527003.11.40.6
5030003.41.80.8
6036004.12.51.1
7042004.83.31.4
7545005.13.71.6
8048005.54.21.8
9054006.25.22.3
10060006.86.32.7
12575008.69.64.2
150900010.313.45.8
3 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
53000.20.020.01
74200.30.020.01
106000.40.030.01
159000.70.070.03
2012000.90.10.05
2515001.10.20.07
3018001.30.20.1
3521001.60.30.1
4024001.80.40.2
45270020.50.2
5030002.20.60.3
6036002.70.90.4
7042003.11.10.5
7545003.31.30.6
8048003.51.40.6
90540041.80.8
10060004.42.20.9
12575005.53.31.4
15090006.64.62
175105007.76.22.7
200120008.87.93.4
250150001111.95.2
4 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
2012000.50.030.01
2515000.60.040.02
3018000.80.060.03
3521000.90.080.04
40240010.10.05
4527001.20.10.06
5030001.30.20.07
6036001.50.20.1
7042001.80.30.1
7545001.90.30.2
8048002.10.40.2
9054002.30.50.2
10060002.60.60.3
12575003.20.90.4
15090003.81.20.5
175105004.51.60.7
200120005.12.10.9
250150006.43.21.4
300180007.74.41.9
3502100095.92.6
4002400010.27.53.3
5 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
3018000.50.020.01
3521000.60.030.01
4024000.70.030.01
4527000.70.040.02
5030000.80.050.02
60360010.070.03
7042001.10.10.04
7545001.20.10.05
8048001.30.10.06
9054001.50.20.07
10060001.60.20.08
125750020.30.1
15090002.40.40.2
175105002.80.50.2
200120003.30.70.3
250150004.11.10.5
300180004.91.50.6
350210005.720.9
400240006.52.51.1
450270007.33.11.3
500300008.13.71.6
6 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
5030000.60.020.01
6036000.70.030.01
7042000.80.040.02
7545000.80.050.02
8048000.90.050.02
90540010.060.03
10060001.10.080.04
12575001.40.10.05
15090001.70.20.07
1751050020.20.1
200120002.30.30.1
250150002.80.40.2
300180003.40.60.3
350210003.90.80.3
400240004.510.4
450270005.11.30.6
500300005.61.50.7
750450008.43.31.4
10006000011.25.52.4
8 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
10060000.70.030.01
12575000.80.040.02
150900010.040.02
175105001.10.060.02
200120001.30.070.03
250150001.60.10.05
300180001.90.20.07
350210002.30.20.09
400240002.60.30.1
450270002.90.30.1
500300003.20.40.2
750450004.90.90.4
1000600006.51.50.6
1250750008.12.21
1500900009.73.11.3
10 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
200120000.80.030.01
2501500010.040.02
300180001.20.050.02
350210001.40.070.03
400240001.60.090.04
450270001.90.10.05
500300002.10.10.06
750450003.10.30.1
1000600004.10.50.2
1250750005.10.70.3
1500900006.210.4
20001200008.21.70.7
250015000010.32.61.1
12 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
3502100010.030.01
400240001.20.040.02
450270001.30.050.02
500300001.50.060.03
750450002.20.10.05
1000600002.90.20.09
1250750003.60.30.1
1500900004.30.40.2
20001200005.80.70.3
25001500007.21.10.5
30001800008.71.60.7
350021000010.12.10.9
400024000011.12.71.2
14 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
500300001.20.030.01
750450001.80.070.03
1000600002.40.10.05
12507500030.20.08
1500900003.60.30.1
20001200004.70.50.2
25001500005.90.70.3
30001800007.110.4
35002100008.31.30.6
40002400009.51.70.7
450027000010.72.10.9
500030000011.92.51.1
550033000013.131.3
600036000014.23.61.5
650039000015.44.11.8
700042000016.64.72
750045000017.85.42.3
16 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100 ft)
Friction Loss
(psi/100 ft)
500300000.90.020.01
750450001.40.040.02
1000600001.80.070.03
1250750002.30.10.04
1500900002.70.10.06
20001200003.60.20.1
25001500004.50.40.2
30001800005.50.50.2
35002100006.40.70.3
40002400007.30.90.4
45002700008.21.10.5
50003000009.11.30.6
5500330000101.60.7
600036000010.91.90.8
650039000011.82.20.9
700042000012.72.51.1
750045000013.62.81.2
800048000014.53.21.4
850051000014.43.51.5
900054000016.53.91.7
950057000017.34.31.9
1000060000018.24.82.1

Thats it’s for schedule 40 PVC pipe flow rates.

Interesting Read – What are PVC Pipe Sizes? | What are PVC Pipe Dimensions? | The Complete Guide

PVC Pipe Flow Rate Chart for Schedule 80 

1/2 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ftH2O/100 ft)
Friction Loss
(psi/100 ft)
1601.541.7
2120383.5
53007.445.219.6
742010.383.136
3/4 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
1600.70.90.4
21201.61.70.7
53003.99.74.2
74205.511.87.7
106007.833.814.7
1590011.871.731.1
1 inch
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
21200.90.90.4
53002.32.61.2
74203.352.2
106004.79.64.2
15900720.48.8
2012009.434.715
25150011.752.422.7
3018001473.531.8
1 1/4 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
21200.50.20.1
53001.30.70.3
74201.81.20.5
106002.62.31
159003.94.92.1
2012005.28.33.6
2515006.512.65.4
3018007.817.67.6
3521009.123.410.1
40240010.43013
45270011.737.316.1
5030001345.319.6
1 1/2 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
21200.40.10.04
53000.90.30.1
74201.30.60.2
106001.910.5
159002.82.21
2012003.83.81.6
2515004.75.72.5
3018005.683.4
3521006.610.64.6
4024007.513.65.9
4527008.416.97.3
5030009.420.58.9
60360011.328.712.4
2 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
53000.60.10.04
74200.80.20.07
106001.10.30.1
159001.70.60.3
2012002.21.10.5
2515002.81.60.7
3018003.42.31
3521003.931.3
4024004.53.81.7
45270054.82.1
5030005.65.82.5
6036006.78.13.5
7042007.810.84.7
7545008.412.35.3
8048008.913.86
90540010.117.27.5
100600011.220.99.1
2 1/2 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
53000.40.050.02
74200.50.070.03
106000.80.10.05
159001.20.30.1
2012001.60.40.2
25150020.70.3
3018002.30.90.4
3521002.71.30.5
4024003.11.60.7
4527003.520.9
5030003.92.41.1
6036004.73.41.5
7042005.54.52
7545005.95.12.2
8048006.25.82.5
90540077.23.1
10060007.88.73.8
12575009.813.25.7
150900011.718.58
3 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
53000.30.020.01
74200.40.030.01
106000.50.040.02
159000.80.090.04
20120010.20.07
2515001.30.20.1
3018001.50.30.1
3521001.70.40.2
40240020.50.2
4527002.20.70.3
5030002.50.80.4
60360031.10.5
7042003.51.50.7
7545003.71.70.7
80480041.90.8
9054004.52.41
100600052.91.3
12575006.24.41.9
15090007.56.22.7
175105008.78.33.6
200120001010.64.6
2501500012.5166.9
4 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
2012000.60.040.02
2515000.70.060.03
3018000.90.080.04
35210010.10.05
4024001.20.10.06
4527001.30.20.07
5030001.40.20.09
6036001.70.30.1
70420020.40.2
7545002.20.50.2
8048002.30.50.2
9054002.60.60.3
10060002.90.80.3
12575003.61.20.5
15090004.31.60.7
1751050052.20.9
200120005.72.81.2
250150007.24.21.8
300180008.65.82.5
35021000107.83.4
4002400011.59.94.3
5 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
3018000.50.030.01
3521000.60.040.02
4024000.70.040.02
4527000.80.060.03
5030000.90.070.03
6036001.10.10.04
7042001.30.10.06
7545001.30.10.06
8048001.40.20.07
9054001.60.20.09
10060001.80.20.1
12575002.30.40.2
15090002.70.50.2
175105003.20.70.3
200120003.60.90.4
250150004.51.30.6
300180005.41.90.8
350210006.32.51.1
400240007.23.21.4
450270008.141.7
5003000094.82.1
6 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
5030000.60.030.01
6036000.80.040.02
7042000.90.050.02
7545000.90.060.03
80480010.070.03
9054001.10.080.04
10060001.30.10.04
12575001.60.20.07
15090001.90.20.1
175105002.20.30.1
200120002.50.40.2
250150003.10.60.2
300180003.80.80.3
350210004.410.5
4002400051.30.6
450270005.61.70.7
500300006.320.9
750450009.44.31.8
10006000012.57.23.1
8 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
12575000.90.050.02
15090001.10.050.02
175105001.30.080.03
200120001.40.090.04
250150001.80.10.06
300180002.10.20.09
350210002.50.30.1
400240002.90.30.2
450270003.20.40.2
500300003.60.50.2
750450005.41.10.5
1000600007.11.80.8
1250750008.92.81.2
15009000010.741.7
10 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
200120000.90.040.02
250150001.10.050.02
300180001.40.070.03
350210001.60.090.04
400240001.80.10.05
4502700020.10.06
500300002.30.20.07
750450003.40.40.2
1000600004.50.60.3
1250750005.70.90.4
1500900006.81.30.6
20001200009.12.21
250015000011.33.31.4
12 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
350210001.10.040.02
400240001.30.050.02
450270001.40.060.03
500300001.60.070.03
750450002.40.20.07
1000600003.20.30.1
12507500040.40.2
1500900004.80.60.2
20001200006.40.90.4
250015000081.40.6
30001800009.620.9
350021000011.22.71.2
400024000012.83.41.5
14 inches
Volume Flow
(gal/min)
Volume Flow
(gal/hr)
Velocity
(ft/sec)
Friction Head
(ft/100ft)
Friction Loss
(psi/100 ft)
500300001.30.040.02
7504500020.090.04
1000600002.60.20.07
1250750003.30.30.1
1500900003.90.30.2
20001200005.20.60.3
25001500006.50.90.4
30001800007.91.20.5
35002100009.21.70.7
400024000010.52.10.9
450027000011.82.61.1
500030000013.13.21.4
550033000014.43.81.7
600036000015.74.52
6500490000175.22.3
700042000018.362.6

Thats its for schedule 80 pvc pipe flow rates

All the values mentioned in the above tables are sourced from credible sources. However, the actual values may be in several PVC pipes. So always consult the sizes and values with your manufacturer before making any decisions.

Several factors affect the flow rate of a PVC pipe, which include the diameter of the pipe, the fluid pressure, the viscosity of the fluid, and the length and layout of the pipe.

The pipe’s diameter is critical in determining the flow rate among these factors.

Generally, a larger diameter pipe can transport a larger volume of fluid faster than a smaller diameter pipe.

For instance, a 2-inch diameter pipe can move approximately four times more fluid than a 1-inch pipe. However, bigger lines are typically costlier and demand more installation space.

Another crucial factor affecting the flow rate of a PVC pipe is fluid pressure.

In general, higher pressure results in a faster flow rate. The pressure difference between the pipe’s two ends propels the fluid to move.

Additionally, the fluid’s viscosity is another factor that can impact the flow rate. Viscous fluids like honey or molasses have a slower flow rate than water or oil, even if the diameter and pressure are similar.

FAQs 

Below are the frequently asked questions on the PVC flow chart. Let’s dig deep to know more.

How many gallons of water can flow through a 1-inch pipe?

A 1 inch PVC pipe can transport 37 gallons of water.

Does pipe size affect flow rate?

In a liquid passing through a pipe, a reduction in flowing speed is often witnessed because of the pipe’s diameter reduction.

What is the normal water flow rate?

Household flow rate ranges from 6 to 12 gallons per minute. The average household water consumption is about 100 – 120 gallons per day.

What maximum flow rate is allowed in the kitchen and households in the USA?

According to federal regulations, all state kitchens and bathrooms should have a maximum flow rate of 2.2 gallons per minute (GPM) at 60 psi (pounds per square inch) of pressure. The GPM may vary slightly in some states.

Can Schedule 40 PVC be used for water supply?

Schedule 40 PVC pipes are most commonly used for water distribution in households. However, it is more suitable for cold water as hot water can crack the pipe.

Suggested Read – 

Final Thoughts 

PVC pipe flow chart rates are important when designing a pipe system to transport fluids. The diameter of the pipe, the pressure of the fluid, the viscosity of the fluid, and the length and configuration of the pipe are all factors that can affect the flow rate.

That is all I wanted to say about the flow rates of PVC pipes.

To all the consumers reading, I would say that consulting a professional plumber is the best option before making any final decision related to your plumbing needs because he, more than anyone else, knows better about the pipes in your house.

Thanks for reading.

Have a Fantastic Day.

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