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System of Measurement
Inch
Metric
Pipe Size
1/16
1/8
1/4
3/8
1/2
3/4
1
1
1/4
1
1/2
2
2
1/2
3
4
6
Material
Aluminum
Brass
Iron
Plastic
Rubber
Stainless Steel
Steel
Thread Type
BSPP
GHT
Metric
NGO
NPSC
NPSH
NPT
NPTF
UN/UNF (CGA)
UN/UNF (SAE Straight)
UNC
UNF
Fitting Type
Adapter
Bushing
Connector
Nut
Reducing Adapter
For Use With
Beverage
Dairy
Food
Fuel Gases
Gas Cylinders
Medical Gas Blend
Solvents
Acetylene
Acid
Air
Ammonia
Argon
Boron Trifluoride
Butane
Calcium Chloride
Carbon Dioxide
Carbon Monoxide
Carbonyl Sulfide
Fitting Connection
Butt Weld
Cement Socket
Compression Clamp On
Luer Lock
Quick Clamp
Threaded
Gender
Female
Male
Connects To
Hose
Pipe
Regulator
Tank
Tube
Tank Connection Method
Bolt On
Weld On
Hole Diameter
7/16"
1/2"
5/8"
11/16"
3/4"
13/16"
7/8"
0.88"
15/16"
1"
1
1/16"
1
1/8"
1
3/16"
1
1/4"
1.31"
1
5/16"
1
3/8"
1
1/2"
Length
3/16"
1/4"
5/16"
3/8"
7/16"
1/2"
9/16"
5/8"
11/16"
23/32"
3/4"
25/32"
13/16"
27/32"
55/64"
7/8"
15/16"
63/64"
For Tank Surface
Curved
Flat
Pipe Material
Aluminum
Plastic
Steel
Mounting Location
Tank
Through Wall
Pipe Schedule
40
80
160
OD
1/2"
3/4"
1"
1
3/16"
1
1/4"
1
5/16"
1
7/16"
1
1/2"
1
5/8"
1
3/4"
1
15/16"
2"
2
1/8"
2
3/16"
2
1/4"
2
5/16"
2
3/8"
2
1/2"
2
9/16"
2
11/16"
2
13/16"
2
15/16"
3"
3
1/4"
3
3/8"
3
1/2"
3
5/8"
3
11/16"
4"
4
1/16"
4
1/4"
4
5/8"
4
3/4"
5
1/2"
5
3/4"
5
13/16"
Maximum Pressure @ Temperature
30 psi @ 72° F
60 psi @ 72° F
70 psi @ 72° F
120 psi @ 72° F
150 psi @ 72° F
200 psi @ 72° F
300 psi @ 72° F
500 psi @ 72° F
725 psi @ 72° F
1,000 psi @ 72° F
1,080 psi @ 72° F
1,230 psi @ 72° F
1,450 psi @ 72° F
2,170 psi @ 72° F
2,900 psi @ 72° F
3,000 psi @ 72° F
3,500 psi @ 72° F
3,600 psi @ 72° F
Tube OD
1/2"
3/4"
1"
1
1/2"
2"
2
1/2"
3"
4"
CGA Number
023
170
180
200
280
296
300
320
326
330
346
347
350
410
500
510
520
540
555
580
590
660
670
677
680
695
701
702
703
705
REACH
Compliant
Not Compliant
RoHS
Compliant
Compliant with Exemptions
Not Compliant
DFARS Specialty Metals
Exempt
U.S.–Mexico–Canada Agreement (USMCA) Qualifying
Yes
No
Export Control Classification Number (ECCN)
2A991
2B999
EAR99
Flange Material
Iron
Plastic
Steel
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537 Products
Fluid Handling
Pipe and Fittings
Generally thicker and more rigid than tubing for distributing liquids and gases
301 products
Hose Fittings
Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose
71 products
Tube Fittings
Make threaded, push to connect, barbed, and other types of connections between lengths of tube
17 products
Containers, Storage, and Furniture
Gas Tank Safety Caps
Protect valves on high-pressure gas tanks without having to remove the regulator
1 product
Fuel Caps
Seal fuel tanks on trailers, compressors, and other equipment
2 products
Building and Machinery Hardware
Lockouts
Ensure that machines stay turned off to prevent accidents during maintenance work
4 products
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)