There are several advantages of having a automatic drain valve. Let’s take you step by step, type by type, and find the best automatic drain valve for you.

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Our Top Picks:

Best Overall: Buy: Qwork Automatic Drain Valve READ REVIEW

Best For Wide Range Of Applications: Buy: Pneumaticplus Automatic Drain Valve READ REVIEW

Best For Garage: Buy: Van Air Systems Automatic Drain Valve READ REVIEW

Best For Voltage Range: Buy: Zjia Automatic Drain Valve READ REVIEW

Best For High Quality: Buy: Hilitand Automatic Drain Valve READ REVIEW

Best For Temperature Range: Buy: Industrial Equipment Expert Automatic Drain Valve READ REVIEW

Best Feature: Easy To Install: Buy: California Air Tools Automatic Drain Valve READ REVIEW

Best Overall: Qwork Automatic Drain Valve

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We are personally inclined towards Qwork Automatic Drain Valve, It is not so pricy, but it overachieves its purpose and is outstanding in important aspects. In addition, it works great, It is suitable for power supply voltage and has a great design. Equipped with a ball valve filter, split with a drain valve, an l-shaped structure. Most importantly, the qwork automatic drain valve works great, It is very happy and works as designed.

Most customers found that the valve is used for shopping compressor.s. Also, they strongly agree that this filter needs to be mounted upstream from the solenoid valve so it does n't clog.

• Structure: equipped with a ball valve filter, split with a drain valve, an l-shaped structure.
• Good investment for the long term.

Best For Wide Range Of Applications: Pneumaticplus Automatic Drain Valve

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate valve. The Pneumaticplus Automatic Drain Valve is exactly that - it's a simple valve that hits all the right notes. The pneumaticplus automatic drain valve is suitable for removing accumulated liquid from a compressed air system. Make sure this fits by entering your model number. And, it does not require electricity or consume air flow for operation.

The valve can be combined with other units, integrated with either a regulator, which controls excess pressure for better performance, or a lubricator, which adds oil mist to the air, or both. Lastly, the pneumaticplus automatic drain valve provides and controls energy, conveys materials, and is critical to the safe operation of equipment in many industries.

Almost all buyers found that the valve will empty whenever it's full or as soon as air pressure is removed. Further, they say that the valve is more useful on the output air line feeding your tools.

• This is and automatically drains as needed.
• 1/2" npt female thread ports for use with existing air piping, 10 mcron element.
• This is designed to cool compressed air before it reaches the tools.
• Manufacturerd in Korea, 1 year limited warranty.

Best For Garage: Van Air Systems Automatic Drain Valve

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Next on the list, we've got yet another valve that manages to win our hearts. It's the Van Air Systems Automatic Drain Valve and it's widely considered as one of the most convenient valves you can buy. The van air systems automatic drain valve is great for temperature range and it works great. It consists of a two - way solenoid valve and a robust timer assembly, making an affordable, reliable, and effective solution for purging liquids from a compressed air system. In addition, the valve makes for a great buy, is designed for working pressure and it is made for easy installation.

The valve works great and it is mechanical. Finally, the van air systems automatic drain valve is single, very easy and it is new.

Almost all customers quickly discovered that the valve comes with a strainer, which is a useful item. In addition, a few strongly agree that the valve is great, no more even thinking about the water in the tank or in the water separator mounted on the line. And, they say that the valve is hooked to the drain on a large water separator. To sum up, for most buyers, Van Air Systems product was what they were looking for.

• This works well as designed, and it is well worth the few extra bucks.
• This works as described, is open and it works great.
• This is easy to understand, and the price point is right on.
• Durable ultrasonically welded thermoplastic timer case; made in the USA.

Best For Voltage Range: Zjia Automatic Drain Valve

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Next on the list, we've got yet another valve that manages to win our hearts. It's the Zjia Automatic Drain Valve and it's widely considered as the valve that has the most suitable features. The zjia automatic drain valve is designed for supply voltage and it is designed for working pressure. Sub-drain valve to simulate circuits and solid state electronic timer solenoid valve to match the compressed air system to achieve automatic timed condensate discharge. Also, it has an adjustment knob and it has an indicator lamp.

Most importantly, the zjia automaticdrain valve can be used in gas tank,sss drip legs and other compressed air system components.

• This has a flow aperture, allows for fully automatic operation and it is current.
• Widely used in gas tank,s drip legs and other compressed air system components.
• There are test button and the intervals, emission time adjustment knob.
• This is suitable for voltage range and it is designed for ambient temperatures.

Best For High Quality: Hilitand Automatic Drain Valve

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate valve. The Hilitand Automatic Drain Valve is exactly that - it's a simple valve that hits all the right notes. The hilitand automatic drain valve is a reliable, high quality condensate drainvalve to keep compressed air treatment equipment running optimally. Timed electric drain valve can be programmed to discharge condensate at timed interval to match conditions. Moreover, it is widely used and can fit for most air compressors.

Finally, the hilitand automatic drain valve is adjustable from 0.5 to 10 seconds, and close time is from 0.5 to 45 minutes.

Almost all buyers quickly discovered that the valve had been working quite well. Overall, buyers found this to be one of the best valves for daily purposes.

• Operate automatically:it operates automatically and wastes less compressed air when discharging condensate.
• This is open and it has a thread outer diameter.
• Widely used:g1/2 thread is widely used and can fit for most air compressors.

Best For Temperature Range: Industrial Equipment Expert Automatic Drain Valve

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Compared with other valves in this category, the Industrial Equipment Expert Automatic Drain Valve has a convenient design. The industrial equipment expert automatic drain valve installed easily, It is built in a strainer and has great design. Make sure this fits by entering your model number. And, the valve can be used as a manual tank or filter drain.

The valve is good for heavy duty, it is a great item and has a good design. Moreover, it is open, is made for electrical connection, it works great and has an adjustable design. Finally, the industrial equipment expert automaticdrain valve is great for temperature range, It is very handy and has a solid design.

One customer says - "There are no instructions to speak of but if you look closely you'll see an arrow on the flat side of the valve body to indicate the direction of the air flow. ". Almost all customers agree that the valve will continue to function flawlessly.

• This provides great value and has a hook design.
• Ball valve used as manual tank or filter drain.
• This has brass construction and it is very good.
• Failure to routinely drain your compressed air system can have catastrophic results.

Best Feature: Easy To Install: California Air Tools Automatic Drain Valve

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate valve. The California air tools automatic drainvalve is exactly that - it's a simple valve that hits all the right notes. The California air tools automatic drain valve is designed to eliminate manually draining air compressor air tanks. The manually set timer allows you to set the time for both the frequency and duration of the draining process. The easily installed and removed forge brass drain valve is durable and built for industrial use.

The valve is new and it works great. Finally, the California air tools automatic drain valve works as described and it works better.

Therefore, customers were very happy to recommend it to friends and would-be buyers.

• This is great for air tools and it is programmable.
• Delivers what they promise.