NPT Drain Valves | McMaster-Carr

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For Use With

Black Beauty Grit

Silicon Carbide Grit

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Outlet Connection Port

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Material

Stainless Steel

Handle Material

Inlet Thread Type

Body Material

Stainless Steel

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Maximum Pressure @ Temperature

125 psi @ 100° F

200 psi @ 100° F

50 psi @ 125° F

85 psi @ 140° F

120 psi @ 140° F

125 psi @ 140° F

100 psi @ 250° F

150 psi @ 250° F

250 psi @ 250° F

250 psi @ 400° F

Outlet Pipe Size

Height

Inlet Connection

Inlet Gender

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 399° F

400° F to 499° F

500° F or greater

Actuation

RoHS

Compliant with Exemptions

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REACH

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DFARS Specialty Metals

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371 Products

Drain Valves

Drain Valves

Discharge liquids from most tanks

Timer-Actuated Compressed Air Drain Valves

Timer-Actuated Compressed Air Drain Valves

Automatically open valves at set intervals with the electronic timer

High-Temperature Drain Valves

High-Temperature Drain Valves

Release fluid from tanks in boiler rooms or heat transfer systems

Compact Float-Actuated Compressed Air Drain Valves

Compact Float-Actuated Compressed Air Drain Valves

Shorter than our other float-operated valves for tight spots

High-Pressure Float-Actuated Compressed Air Drain Valves

High-Pressure Float-Actuated Compressed Air Drain Valves

Withstand the highest pressure of all our float-operated drain valves

Clear-View Float-Actuated Compressed Air Drain Valves

Clear-View Float-Actuated Compressed Air Drain Valves

A clear bowl makes it easy to see condensate that’s forming in your line

Energy-Saving Compressed Air Drain Valves

Energy-Saving Compressed Air Drain Valves

Open when full and close just before empty to avoid loss of compressed air

High-Pressure Timer-Actuated Compressed Air Drain Valves

High-Pressure Timer-Actuated Compressed Air Drain Valves

Withstand at least twice the pressure of our other timer-actuated valves

High-Discharge Float-Actuated Compressed Air Drain Valves

High-Discharge Float-Actuated Compressed Air Drain Valves

Best for large compressed air systems, these handle high rates of discharge

Timer-Actuated Compressed Air Drain Valves with Digital Display

Timer-Actuated Compressed Air Drain Valves with Digital Display

Set and view precise intervals on the display to automatically open valves

Easy-Clean Float-Actuated Compressed Air Drain Valves

Easy-Clean Float-Actuated Compressed Air Drain Valves

A float automatically opens the external drain when the bowl starts to fill

Back-Pressure-Actuated Compressed Air Drain Valves

Back-Pressure-Actuated Compressed Air Drain Valves

Automatically open valves with back pressure from turning off compressors

Other Products

Garden Hose Faucets

Garden Hose Faucets

Connect garden hose to lines coming from a building or the ground

Manual On-Off Valves

Manual On-Off Valves

Start and stop flow through a line

Float Valves

Open or close a pipe connection when liquids in a container reach a set level; also known as ballcocks

Pressure-Relief Valves

Pressure-Relief Valves

Protect equipment by opening at a set pressure and closing when the pressure drops; for repeated use

Safety Lockout Valves

Safety Lockout Valves

Prevent accidental start-up when servicing equipment

Float Valve Bodies

Float Valve Bodies

Pair with floats and rods to create float valves that meet your needs

Water Supply Stop Valves

Water Supply Stop Valves

Shut off water to faucets, toilets, and fountains

Solenoid On-Off Valves

Solenoid On-Off Valves

A solenoid withstands rapid cycling for applications with frequent opening and closing

Sink Faucets

Manual and touch-free faucets for janitorial, restroom, and food service sinks

Air-Actuated On-Off Valves

Air-Actuated On-Off Valves

Operate on compressed air to start and stop flow faster than motor-driven valves

Flow-Adjustment Valves

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids through a line

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