Automatic Drains
Timer-controlled condensate drains, solenoid valves and strainer accessories for automatically removing collected water from air receivers, filters, dryers and compressed-air pipework.
Automatic Condensate Drain Products
Automatic drains discharge collected condensate without relying on somebody remembering to open a manual drain valve.
The current range includes two complete timer-drain options, a normally-open 1/8" solenoid valve and a strainer ball-valve accessory for protecting compatible drain installations from debris.
Correct selection depends on thread size, electrical supply, valve function, operating pressure and the equipment the drain is being fitted to.
Shop Automatic Drains & Accessories
The 1/2" TAN-OPT-A drain is shown first, followed by the 3/8" EZ1 / HTD1, then the compatible solenoid valve and finally the strainer accessory. Live price and stock information are pulled directly from WooCommerce.
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Automatic DrainsAN01BB12T | 1/8 Solenoid Valve – Two Way Normally Open – Multiple Options Available
£101.65 exc vat. Select options This product has multiple variants. The options may be chosen on the product page1/8 Solenoid Valve – Two Way Normally Open – Multiple Options Available – a two-way normally open solenoid valve for compatible compressed air control and drain applications.
In Stock£101.65 exc vat. -
Automatic DrainsTanair EZ1/ HTD1 | 3/8 Automatic Solenoid Timer Controlled Drain 230 V Ref: EZ1/ HTD1
£71.00 exc vat. Add to basketTanair EZ1 / HTD1 3/8″ Automatic Solenoid Timer Controlled Drain 230V automatically removes condensate from compressed air systems, helping prevent corrosion, reduce maintenance and improve air quality. Suitable for compressors, dryers, filters and air receivers.
In Stock£71.00 exc vat. -
Automatic DrainsSBV | 1/2″ Inlet x 3/8″ Outlet Strainer Ball Valve (supplied with 3/8″ – 1/4″ reducing nipple)
£11.00 exc vat. Add to basket1/2″ Inlet x 3/8″ Outlet Strainer Ball Valve (supplied with 3/8″ – 1/4″ reducing nipple) is a strainer ball valve assembly for compatible compressed-air and condensate-management installations. It combines isolation with inlet protection to support reliable downstream equipment operation. Check connection sizes, pressure rating and application compatibility before ordering.
In Stock£11.00 exc vat. -
Automatic DrainsTAN-OPT-A | 3/8 or 1/2″ Automatic Solenoid Timer Controlled Drain (Bush and Strainer Included)
£69.00 exc vat. Add to basketA Tanair component for compatible compressed air installation, repair or maintenance work.
In Stock£69.00 exc vat.
Automatic Drain Range
Tanair EZ1 / HTD1
3/8" 230 V automatic solenoid timer drain for routine condensate removal from compatible compressors, receivers, filters and refrigerated dryers.
TAN-OPT-A
3/8" or 1/2" timer-controlled drain package supplied with bush and strainer for convenient installation on compatible systems.
AN01BB12T Solenoid Valve
1/8" two-way normally-open solenoid valve with selectable electrical options for compatible pneumatic and condensate-control applications.
SBV Strainer Ball Valve
1/2" inlet x 3/8" outlet strainer ball valve supplied with a 3/8" to 1/4" reducing nipple for compatible drain installations.
Why Automatic Condensate Drains Matter
- Reduce condensate build-up inside air receivers and pipework
- Help reduce corrosion and moisture-related equipment problems
- Protect filters, dryers, air tools and production equipment
- Reduce reliance on routine manual drain checks
- Support more consistent compressed-air system operation
How a Timer-Controlled Drain Works
A timer drain energises the solenoid valve for a short adjustable period at regular intervals. This releases accumulated condensate from the receiver, filter, dryer or pipework location.
What to Check Before Ordering
Thread Size
Confirm inlet and outlet connection sizes and thread type before ordering.
Electrical Supply
Check the required coil voltage and whether the installation uses AC or DC power.
Valve Function
Confirm whether the replacement valve must be normally open or normally closed.
Pressure & Flow
Check operating pressure, valve flow direction and whether the orifice or capacity suits the installation.
Why Fit a Strainer Before an Automatic Drain?
Rust, pipe scale and other debris can reach the drain valve with the condensate. A suitable upstream strainer helps stop contamination blocking the valve orifice and interfering with reliable operation.
The SBV accessory provides an isolating ball valve and strainer arrangement for compatible automatic-drain installations.
Automatic Drain Installation Guidance
- Isolate and fully depressurise the compressed-air system before installation
- Disconnect the electrical supply before wiring or servicing
- Confirm voltage, valve function and flow direction
- Fit a suitable strainer where required to protect the valve
- Use appropriate thread sealing without allowing material into the valve
- Test the drain operation and check for leaks before returning the system to service
- Inspect the drain routinely for blocked orifices, damaged seals and electrical faults
Why Might an Automatic Drain Stop Working?
Blocked Valve or Strainer
Dirt, rust or condensate contamination can obstruct the orifice or strainer.
Electrical Fault
Incorrect voltage, failed coils, poor wiring or damaged electrical connections can stop operation.
Seal or Valve Damage
Worn seals or internal valve damage can cause leakage or failure to open and close correctly.
Incorrect Installation
Wrong flow direction, unsuitable pressure or incorrect valve function can prevent reliable operation.
Automatic Drain FAQs
What does an automatic drain do?
It automatically releases condensate collected in air receivers, compressed-air filters, dryers or pipework.
How does a timer-controlled drain work?
It opens the solenoid valve for a set duration at regular intervals. The interval and opening time should suit the amount of condensate being produced.
What is the EZ1 / HTD1?
It is a Tanair 3/8" 230 V automatic solenoid timer-controlled drain suitable for compatible compressors, receivers, filters and refrigeration dryers.
What is included with TAN-OPT-A?
The current listing describes a 3/8" or 1/2" automatic timer drain supplied with bush and strainer.
Why is a strainer useful?
It helps stop dirt and debris reaching and blocking the small valve orifice.
Can I choose a drain from the thread size alone?
No. Also confirm voltage, AC or DC supply, valve function, pressure rating, flow direction and application.
Where can an automatic drain be fitted?
Common locations include air receivers, compressed-air filters, refrigerated dryers and low points in pipework, subject to product suitability.
Need Help Identifying the Correct Automatic Drain?
Send us the equipment model, existing drain or valve reference, thread size and electrical supply and our team can help check compatibility.
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