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Common Plumbing abbreviations
AGA: American Gas Association
Brs: Brass
CP: Chrome Plated
CC: Copper x Copper
CFH: Cubic Feet per Hour
CFM: Cubic Feet per Minute
CWT: Copper Water Tube
Dia: Diameter
DC: Die Cast
Fct: Faucet
FGH: Female Garden Hose
FHT: Female Hose Thread
FIP: Female Iron Pipe
FIPS: Female Iron Pipe Size
FPT: Female Pipe Thread
Gal: Gallon
GPF: Gallons Per Flush
GPM: Gallons Per Minute
Ga: Gauge
Hdl: Handle
Hd: Head
Hgt: Height
ID: Inside Diameter
IPS: Iron Pipe Size
MGH: Male Garden Hose
MHT: Male Hose Thread
MIP: Male Iron Pipe
MIPS: Male Iron Pipe Size
MPT: Male Pipe Thread
Nom: Nominal
NPSH: National Pipe Straight Hose
NPSM: National Pipe Straight Mechanical
NPST: National Pipe Straight Thread
Oz: Ounce
OD: Outside Diameter
PSI: Pounds Per Square Inch
Pln: Plain
Pt: Point
PB: Polished Brass
SF: Satin Finish
SS: Stainless Steel
SWT: Sweat
THD: Thread
Mil: 1/1000 Inch

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1 Foot = 0.305 meters
1 Meter = 3.281 feet
1 Meter = 39.37 inches
1 Square Meter = 10.76 sq. Feet

Weights
1 U.S. Gallon of Water
1 Cu. Foot of Water
1 Imperial Gallon
1 Liter
8.3357 Pounds
62.3554 Pounds
10.0 Pounds
2.2 Pounds
Pressures
1 Atmosphere
1 Atmosphere
1 Pound per Square Inch
1 Pound per Square Inch
1 Foot of Head
1 Inch of Water Column
1 Kilogram/sq. Centimeter
1 Foot of Water
33.94 Ft. of Water @ 62°F
14.6963 lbs./sq. Inch
2.31 Feet of Head
27.7612 Inches of Water
.433 Pounds/sq. Inch
.0360 Pounds/sq. Inch
14.22 lbs./sq. Inch
62.3554 lbs./sq. Foot
Flows
1 Gallon/Minute (U.S.)
1 Gallon/Minute (U.S.)
1 Gallon/Minute (U.S.)
1 Gallon/Minute (U.S.)
1 Gallon/Minute (U.S.)
1 Gallon/Minute (U.S.)
1 Cubic Ft. per Second
1 Liter per Second
1 Acre Inch per Hour
1 Acre Foot per Day
1,000,000 Gallons per Day
1 Cubic Ft. per Second
.002228 cu. ft./Second
.13368 cu. ft./Minute
8.0208 cu. ft./Hour
.06309 Liters/Second
3.78533 Liters/Minute
.0044192 Acre Ft./24 Hrs.
448.83 GPM
15.85 GPM
452.57 GPM
226.3 GPM
694.4 GPM
.992 Acre Inches/Hr.
Volume
1728 Cubic Inches
231 Cubic Inches
27 Cubic Feet
1 Cubic Foot
1 Cubic Yard
16 Drams
32 Ounces
4 Quarts
1 Gallon
1 Gallon
1 Gallon
27.154 Gallons
325,851 Gallons
1,000,000 Gallons
1 Acre Foot
Volume of a Cube
Volume of a Pyramid
Volume of a Sphere
1 Cubic Foot
1 Gallon
1 Cubic Yard
7.48052 Gallons (U.S.)
202 Gallons (U.S.)
1 Ounce
1 Quart
1 Gallon
3.785 Liters
.00379 Cubic Meters
.833 Imperial Gallon
1 Acre Inch
1 Acre Foot
3.0689 Acre Feet
43,560 Cubic Feet
Area of Base x Height
1/3 Area of Base x Height
Diameter Cubed x .5236
Power
Horse Power GPM x Total Head (Ft.)
3960 x Pump Efficiency
Pump Efficiency GPM x Total Head (Ft.)
3960 x BHP to Pump
1 Horse Power
1 Horse Power
1 Horse Power
33,000 Ft. Pounds/Minute
746 Watts
.746 Kilowatts

Weight of 100' of pipe filled with water
Pipe Size Plastic (125#) Iron (Sch 40)
1"
1¼"
1½"
2"
57 lbs.
97 lbs.
130 lbs.
217 lbs.
206 lbs.
293 lbs.
360 lbs.
512 lbs.

Comparing Flow rate to Velocity
(in type 'L' copper)
Size (Nom) @ 3.0'/Second @ 3.5'/Second Suggested Max.
Flow Rate
½"
¾"
1"
1¼"
1½"
2"
2.2 gpm
4.5 gpm
7.5 gpm
12.0 gpm
17.0 gpm
29.0 gpm
2.64 gpm
5.40 gpm
9.00 gpm
14.40 gpm
20.40 gpm
34.80 gpm
2.2 gpm
4.8 gpm
9.0 gpm
14.4 gpm
20.4 gpm
34.8 gpm

Water Flow Rate Guide
Gallons Per Minute
(GPM)
Seconds to fill
a quart jar.

Seconds to fill
a gallon jug.

0.75
1.00
1.50
2.00
2.50
3.00
3.50
4.00
20.00 *
15.00 *
10.00 *
7.50
5.00
4.50
4.25
3.75
80
60
40
30 *
24 *
20 *
17 *
15 *
* most practical

to pipe size guide

Head Loss per 100' - Type 'L' Copper Tubing
Size Velocity (FPS) GPM Head Loss
½"
¾"
1"
1¼"
1½"
2"
2½"
3"
4"
5
5
6
6
7
7
8
8
8
3.64
7.54
15.43
23.50
38.81
67.52
119.00
170.00
299.00
10.12
6.59
7.10
5.30
6.03
4.17
4.35
3.54
2.43

Head Loss per 100' - Sch.40 PVC
½"
GPM
Head Loss
½
0.40'
1
1.28'

2.58'
2
4.24'

6.25'
3
8.59'

11.25'
4
14.22'

17.50'
5
21.07'
¾"
GPM
Head Loss
1
0.35'
2
1.16'
3
2.34'
4
3.86'
5
5.71'
6
7.86'
7
10.32'
8
13.07'
9
16.10'
10
19.41'
1"
GPM
Head Loss
2
0.35'
3
0.70'
4
1.14'
5
1.69'
6
2.32'
7
3.04'
8
3.85'
9
4.74'
10
5.71'
12
7.88'
14
10.36'
1¼"
GPM
Head Loss
5
0.51'
6
0.70'
7
0.91'
8
1.15'
9
1.42'
10
1.71'
12
2.35'
15
3.49'
20
5.81'
25
8.65'
30
11.98'
1½"
GPM
Head Loss
8
0.55'
9
0.67'
10
0.81'
12
1.12'
15
1.65'
20
2.75'
25
4.09'
30
5.65'
35
7.45'
40
9.45'
45
11.68'
2"
GPM
Head Loss
16
0.55'
18
0.68'
20
0.82'
25
1.22'
30
1.68'
35
2.21'
40
2.80'
45
3.46'
50
4.17'
60
5.79'
70
7.63'
80
9.70'
2½"
GPM
Head Loss
35
0.88'
40
1.12'
45
1.38'
50
1.66'
60
2.30'
70
3.03'
80
3.85'
90
4.75'
100
5.74'
110
6.82'
120
7.98'
130
9.22'
3"
GPM
Head Loss
50
0.63'
60
0.87'
70
1.15'
80
1.45'
90
1.80'
100
2.17'
110
2.57'
120
3.01'
130
3.47'
140
3.97'
150
4.50'
160
5.05'

The above is free as a courtesy - accuracy is not guaranteed.

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