Couplings for Air | McMaster-Carr

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System of Measurement

Pipe Size

Fitting Type

Expansion Joint

Reducing Adapter

Material

Stainless Steel

Shape

Double 90° Elbow

Double-Outlet Elbow

Side-Outlet Elbow

Side-Outlet Tee

Single-Outlet Elbow

Thread Type

Gender

Fitting Connection

Pipe Schedule

Pipe Material

Stainless Steel

For Use With

Abrasive Materials

Ball Joint Rod Ends

Dry Abrasive Materials

Medical Gas Blend

Nonabrasive Slurries

Organic Solvents

Pharmaceuticals

Acetic Acid (White Vinegar)

Acetic Acid (White Vinegar) (5% Concentration)

Acetic Acid (White Vinegar) (10% Concentration)

Acetic Acid (White Vinegar) (75% Concentration)

Ammonium Hydroxide

Boron Trifluoride

Calcium Chloride

Carbon Monoxide

Carbonyl Sulfide

Deionized Water

Dichlorotetrafluoroethane

Diesel Exhaust Fluid

Ethylene Glycol

Hydraulic Fluid

Hydraulic Fluid (Petroleum Based)

Hydrochloric Acid

Hydrochloric Acid (10% Concentration)

Hydrochloric Acid (25% Concentration)

Hydrochloric Acid (30% Concentration)

Hydrochloric Acid (37% Concentration)

Hydrofluoric Acid

Hydrogen Bromide

Hydrogen Chloride

Hydrogen Fluoride

Hydrogen Iodide

Hydrogen Sulfide

Isopropyl Alcohol

Liquid Carbon Dioxide

Liquid Nitrogen

Magnesium Chloride

Methanol (Methyl Alcohol)

Methyl Chloride

Methyl Ethyl Ketone (MEK)

Methyl Fluoride

Mineral Spirits

Nitric Acid (10% Concentration)

Nitric Acid (65% Concentration)

Nitrogen Trifluoride

Perfluoropropane

Phosphoric Acid

Phosphoric Acid (70% Concentration)

Phosphoric Acid (85% Concentration)

Propylene Glycol

Salt Water (30% Concentration)

Silicon Tetrafluoride

Sodium Carbonate (Soda Ash)

Sodium Carbonate (Soda Ash) (20% Concentration in Water)

Sodium Chloride

Sodium Hydroxide (Caustic Soda)

Sodium Hydroxide (Caustic Soda) (50% Concentration)

Sodium Hypochlorite (Bleach)

Sulfur Hexafluoride

Sulfur Tetrafluoride

Sulfuric Acid (30% Concentration)

Sulfuric Acid (70% Concentration)

Sulfuric Acid (75% Concentration)

Sulfuric Acid (80% Concentration)

Sulfuric Acid (95% Concentration)

Trifluoroethane

Tungsten Hexafluoride

Length

Connects To

Corrugated Pipe

Flange Material

Stainless Steel

Pressure Class

Threading

Threaded on Both Ends

Threaded on One End

Tube OD

Maximum Pressure @ Temperature

100 psi @ 70° F

125 psi @ 70° F

500 psi @ 70° F

2,000 psi @ 70° F

4,000 psi @ 70° F

15 psi @ 72° F

20 psi @ 72° F

25 psi @ 72° F

30 psi @ 72° F

40 psi @ 72° F

45 psi @ 72° F

50 psi @ 72° F

60 psi @ 72° F

Fitting Material

Stainless Steel

OD

Body Shape

For Flange Class

DFARS Specialty Metals

Export Control Classification Number (ECCN)

REACH

RoHS

Compliant with Exemptions

How can we improve?

31,555 Products

Fluid Handling

Pipe Fittings

Form threaded, barbed, flanged, and other types of connections between lengths of pipe

Pipe Nipples and Pipe

Pipe Nipples and Pipe

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

Pipe Flanges

Create an access point in a line by bolting two same-size flanges together with a gasket

Pipe Plugs

Insert into the ends of pipe to keep out dirt and debris

Pipe Caps

Cover the ends of pipe to keep out dirt and debris

Expansion Joints

Expansion Joints

Reduce stress, vibration, and noise in piping systems by absorbing movement

Pipe Fitting Clamps

Pipe Fitting Clamps

Connect easy-access and grooved-end pipe fittings to pipe

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

10,833 products

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Tube Fitting Sleeves

Tube Fitting Sleeves

Pair with nuts and fittings to form a secure connection on tubing

Tube Fitting Clamps

Tube Fitting Clamps

Quickly secure connections between tube fittings, including sanitary and high-vacuum fittings

Tube Supports

Slip into plastic and rubber tubing to prevent them from collapsing

Tube Fitting Rings

Tube Fitting Rings

Prevent leaks at tubing connection points

Tube End Plugs

Insert into the ends of tube to keep out dirt and debris

Tube End Caps

Cover the ends of tube to keep out dirt and debris

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

Hose Fitting Nuts

Hose Fitting Nuts

Connect fittings and compressed-gas nipples to pressure regulators and torches

Hose End Caps

Cover the ends of hose to keep out dirt and debris

Pipe Repair Clamps

Pipe Repair Clamps

Fix small holes and cracks in pipe without taking your system apart

Tube Repair Clamps

Tube Repair Clamps

Mend small holes, cracks, and full-circle breaks in tubing without dismantling your system

Duct Hose and Fittings

Duct Hose and Fittings

Connect to blowers and vacuums to move air, fumes, dust, chips, and liquids

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

On-Off Valves

Start and stop flow through a line

Fastening and Joining

Brazing Rings

Snap into metal pipe and tubing to form leak-resistant joints more quickly than with hand-fed alloys

Lubricating

Grease Fitting Adapters

Grease Fitting Adapters

Mate grease fittings when the sizes and thread types don't match

Facility and Grounds Maintenance

Air Admittance Valves

Air Admittance Valves

Allow air into drain, waste, and vent systems so you don't have to vent plumbing to the outdoors

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)