Are you planning to buy auto drain valves, and are you confused about the options ? This page is just for you.

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Our Top Picks:

Best Overall: Buy: Szzijia Auto Drain Valve READ REVIEW

Best For Worth The Money: Buy: Suburban Auto Drain Valve READ REVIEW

Best For Flow Rate: Buy: Thb Auto Drain Valve READ REVIEW

Best For Power Supply Voltage: Buy: Qwork Auto Drain Valve READ REVIEW

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

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

Best For For Low Noise: Buy: California Air Tools Auto Drain Valve READ REVIEW

Best Feature: Easy To Install: Buy: California Air Tools Timer Manual Test Switch READ REVIEW

Best Overall: Szzijia Auto Drain Valve

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If you want nothing short of the optimal valve for your daily usage, this Szzijia Auto Drain Valve is certainly the best investment. The szzijia auto drain valve, made of metal, is current and it is working great. Equipped with a ball valve filter, split with a drain valve, an l-shaped structure. In addition, the valve works well so far and it is very simple.

The valve does the job and it has an indicator lamp. Also, it works perfectly and it is adjustable. Finally, the szzijia auto drain valve works perfectly and it works fine.

Most customers quickly discovered that the valve is a loud burst of air dumped off for a user set time. Moreover, they strongly agree that the valve will dump whenever you use a compressor. Also, a few say that the valve makes it so much easier than draining the tank.

• This works well with no issues.
• This worked perfectly, can be used for electrical connection and it is brand new.
• Have an air compressor tank drain valve.
• This is great to help keep water out of the air system.

Best For Worth The Money: Suburban Auto Drain Valve

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The best part: Suburban Auto Drain Valve costs comparatively little and it is available to ship in 24 hours. The suburban auto drain valve is inexpensive and has a nice design. Make sure this fits by entering your model number. In addition, the valve includes led lights and a test button.

The valve allows for easy installation on the dryer side panel or to motor mounting plates. Above all, the suburban auto drain valve is adjustable, it is made for garden hose and has a good design.

Almost all customers opine that the valve will operate when first plugged in. And, they strongly agree that the valve is great to set and forget it, water in the air system has been reduced by 2/3rds. Further, a few say that this is not a problem with the valve, but rather the condition it is asked to perform in. In short, at the price, they believe that they got a steal of a deal with it.

• This can be used in a business setting, so it's definitely a good workout.
• The new standard for solenoid drains.
• This works quite well, is single, it is black and has an adjustable design.
• This cleans the air before it gets to the timed valve.

Best For Flow Rate: Thb Auto Drain Valve

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The THB auto drain valve's material feels more premium than its price would suggest. The THB auto drain valve will automatically drain moisture/debris from the metal bowl. Use a heavy duty 1/2" compressed air line filter seperator/particulate filter. The dirt and dust is combined with oil ( which is often the case with compressors ), a sticky mess can form inside valves, motors and other compressed air equipment.

The valve is pneumatic and has a great design. Above all, the THB auto drain valve comes with an internal float drain 140 cfm flow rate.

Most customers found that the valve will also autodrain when pressure is removed from the system. Furthermore, a few also found that the valve will drain under pressure if the water level gets high enough to lift the float. In conclusion, many have used the valve for more than a few months without any issues, and it shows no sign of giving up.

• 1/2" female npt air inlet port x 1/2" female npt air outlet port.
• 215 max output pressure 250 psi max input pressure.
• This worked fine, it does the job and has a hook design.
• This is easy to hook up with a bracket supplied.

Best For Power Supply Voltage: Qwork Auto Drain Valve

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The Qwork Auto Drain Valve should be able to handle its purpose and duties with ease. Also, it is very happy, it is perfect for power supply voltage and has a good design. Make sure this fits by entering your model number. Above all, the qwork auto drain valve is designed to supply voltage and is easy to design.

Most customers opine that the valve is used for shopping compressor.s. In addition, they strongly agree that the split version comes with a separate elbow / filter / valve and the integrated version has it all mounted on the solenoid. In short, many have used the valve for more than a few months without letup, and it shows no sign of giving up.

• Structure: equipped with a ball valve filter, split with a drain valve, an l-shaped structure.
• Good brand reputation.

Best For Wide Range Of Applications: Pneumaticplus Auto 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 Pneumaticplus Auto Drain Valve and it's widely considered as the valve that has the most suitable features. The pneumaticplus auto drainvalve 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. Compressed air filters remove particulates (dirt), oil, water, and oil vapor. Also, it is suitable for removing accumulated liquid from a compressed air system.

Above all, the pneumaticplus auto drain valve works OK, It is made with fast shipping and has a nice design.

Most buyers quickly discovered that the valve has a 1/2" npt fitting. And, a few also found that the valve is designed to cool compressed air before it reaches the tools. Moreover, they also found that the valve is more useful on the output air line feeding your tools.

• This is great in the florida humidity.
• Float-style drain for automatic liquid discharge without electricity.
• Manufacturerd in Korea, 1 year limited warranty.
• This is and automatically drains as needed.

Best For Garage: Van Air Systems Auto Drain Valve

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The van air system autodrain valve's high-end materials makes sure that it ages well with use. The Van Air Systems Auto Drain Valve works as advertised and it is long enough. Make sure this fits by entering your model number. And, this includes all accessories needed for simple operation, including the power cord, y-strainer to prevent clogs, and a hose barb fitting for attaching a 3/8” id drain hose.

The valve makes for a great buy and it is very good. Finally, the van air systems auto drain valve works well, suitable for light weight and it works as expected.

Most customers find that the valve is hooked to the drain on a large water separator. Also, they say that the valve is easy to understand, and the price point is right on. Further, a few strongly agree that the switch is for your air compressor and plug it in when the compressor is on.

• This has prime shipping, is single and it is adjustable.
• Adjustable cycle: 1-60 minutes closed; 1-60 seconds open; valve test feature.
• This works as described and it is designed for working pressure.
• Durable ultrasonically welded thermoplastic timer case; made in the USA.

Best For For Low Noise: California Air Tools Auto Drain Valve

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California Air Tools offers a variety of valves for personal choice and yet maintains quality in all the variants. The California air tools auto drainvalve is designed to increase the duty cycle and allow for longer continuous run times. Make sure this fits by entering your model number. The large 10 gallon steel air tank with wheel kit makes it very easy to move around the jobsite, shop or garage.

The valve is great with awesome quality, it works fine and has a solid design. Most importantly, the California air tools auto drain valve is very happy, It is easy to operate and has a simple design.

Almost all customers opine that the valve is easy to install and very sturdy, connections are solid, it looks great and is amazingly quiet. Also, a few strongly agree that the valve is easy to attach the wheels and supports. And, a few say that the valve is a better than expected compressor and is very quiet. To sum up, buyers found this to be one of the best valves for daily purposes.

• This fits the bill and the price is very right.
• This is kinda cheap, is single and it is new.
• This does kick on. It rebuilds pressure very quickly.
• Oil-free pump for less maintenance & costs.

Best Feature: Easy To Install: California Air Tools Timer Manual Test Switch

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California Air Tools offers a variety of valves for personal choice and yet maintains quality in all the variants. The California air tools timer manual test switch is designed to eliminate manually draining air compressor air tanks. Make sure this fits by entering your model number. The easily installed and removed forge brass drain valve is durable and built for industrial use. Finally, the California air tools timer manual test switch is new and it works better.

Obviously, this valve passed the test and had very satisfied buyers eager to share their experience.

• Delivers what they promise.
• Good brand reputation.