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Chilipepper Home

Water Heaters
How and Why

Electric water heaters

Electric water heater operation

Electric repair guide

Gas water heaters

Gas water heater Operation

Gas Repair Guide

Water Heater Sediment

Water Heater Flushing

Water Heater Dip Tube

Heat Pump models

Tankless Water Heaters

Point of Use Tankless Heaters

Selecting Tankless Water Heater

Residential Plumbing Systems

Circulating Systems

Traditional Type Circulating Systems

Cold Return Type Systems

Thermo Siphon Type Circulating Systems

Water Heater Replacement

Metlund vs. CP6000

Inventing the Metlund Hot Water D'mand System

Miscellaneous Engineering Data

Pipe Weight Table

Tap Drill Chart (sizes)

Water pipe flow rate table

Dancing Chilipeppers!

Green Plumbing Layout Test

This water flow rate table shows water flow through pipes and copper tubing.

Volume of flow is at one foot per minute velocity in Pipe or Tube.

Schedule 40 pipe
Dia. inches	Cubic ft/min	Gallons/minute
1/8	0.0004	0.003
1/4	0.0007	0.005
3/8	0.0013	0.010
1/2	0.0021	0.016
3/4	0.0037	0.028
1	0.0062	0.046
1-1/4	0.0104	0.078
1-1/2	0.0141	0.106
2	0.0233	0.174

Schedule 80 pipe
Dia. inches	Cubic ft/min	Gallons/minute
1/8	0.0003	0.002
1/4	0.0005	0.004
3/8	0.0010	0.007
1/2	0.0016	0.012
3/4	0.0030	0.025
1	0.0050	0.037
1-1/4	0.0088	0.067
1-1/2	0.0123	0.092
2	0.0206	0.154

Type K Copper Tube
Dia. inches	Cubic ft/min	Gallons/minute
1/8	0.0002	0.0014
1/4	0.0005	0.0039
3/8	0.0009	0.0066
1/2	0.0015	0.0113
3/4	0.0030	0.0267
1	0.0054	0.0404
1-1/4	0.0085	0.0632
1-1/2	0.0196	0.1465
2	0.0209	0.1565

Type L Copper Tube
Dia. inches	Cubic ft/min	Gallons/minute
1/8	0.0002	0.002
1/4	0.0005	0.004
3/8	0.0010	0.008
1/2	0.0016	0.012
3/4	0.0034	0.025
1	0.0057	0.043
1-1/4	0.0087	0.065
1-1/2	0.0124	0.093
2	0.0209	0.161

Chilipepper Sales 10 Greg St., # 110 Sparks Nevada, 89431 PH (775)-359-1223