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Tank drain valve for compressors

3,87 €
3,87 € 3,95 €
You save 2% (0,08 €)

Delivery in 3–15 days

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Tank drain valve for compressors

Compressed air carries moisture, and that moisture condenses at the bottom of the tank. If it isn't drained, the water rusts the tank from the inside and eventually reaches your tools and paint. The tank drain valve is the part that lets you empty it in seconds.

It screws into the bottom of the tank and is available in 1/4" and 3/8". If yours drips, is seized or broken, replace it: it is an inexpensive spare that extends the life of the tank and protects everything you connect to the compressor.

Draining daily is the simplest and most cost-effective compressor maintenance, and with a valve in good condition it takes seconds and keeps your hands clean.

✅ Key benefits

  • Empties condensate: protects the tank from corrosion.
  • Two threads: 1/4" and 3/8".
  • Inexpensive spare: replaces a drain valve that drips or won't open.
  • Protects your tools: less water in the air line.
  • Instant fitting: screws in with PTFE tape.

🏗️ What it's for

  • Replacing the tank drain valve.
  • Daily compressor maintenance.
  • Fixing drips at the bottom of the tank.
  • Workshop, site and DIY compressors.

📋 Technical specifications

  • Use: manual tank draining
  • Thread sizes: 1/4" · 3/8"
  • Installation: threaded, with PTFE tape or sealant

💡 Vetonek tip: drain the tank at the end of each day with some pressure still inside: the water comes out more easily and you prevent internal rust. If you'd rather not have to remember, a programmable automatic drain does it for you.

Frequently asked questions

What size do I need?

The thread size of your compressor's current drain valve: 1/4" or 3/8".

Do I need to use PTFE tape?

Yes, on tapered male threads apply PTFE tape or thread sealant to prevent leaks.

How often should I drain it?

Ideally at the end of each working day, with some pressure in the tank.

How do I replace it?

With the compressor disconnected and the tank completely empty, unscrew the old drain valve and screw in the new one with PTFE tape.

Is there an automatic option?

Yes, a programmable automatic condensate drain empties the water without you having to remember.

Frequently Asked Questions

What size do I need?

The thread size of your compressor's current drain valve: 1/4" or 3/8".

Do I need to use PTFE tape?

Yes, on tapered male threads apply PTFE tape or thread sealant to prevent leaks.

How often should I drain it?

Ideally at the end of each working day, with some pressure in the tank.

How do I replace it?

With the compressor disconnected and the tank completely empty, unscrew the old drain valve and screw in the new one with PTFE tape.

Is there an automatic option?

Yes, a programmable automatic condensate drain empties the water without you having to remember.