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Condensate Drains
Internal Float Auto Drain Valve for Filter Housings
An internal auto drain valve removes condensate from compressed air filter bowls without electricity. The float-operated design opens when accumulated liquid lifts the float, releasing water and debris, and can also be operated manually.
- Float-operated, no electricity required
- Automatic and semi-automatic operation
- Manual operation possible
- O-ring and lock nut included for installation
- Suits industrial filter housings

Application-first selection
Tell us the medium, range and conditions — we match the product type to the duty.
Multi-category sourcing
Instruments, valves, filters, pneumatics and pumps on one enquiry.
Quotation against your specs
Every quote references the parameters you sent, so comparisons are like-for-like.
Engineer-to-engineer support
Ask a technical question before you commit to a model.
Condensate Drains
Range, specifications & options
Normally closed types are automatic; normally open types are semi-automatic and drain when the line is depressurised. The page notes it as a replacement for float drains in many filter housings. Flotronics supplies these drains and helps confirm fit. Send your filter housing details for a quotation. Confirm specifications against the datasheet for your exact model before ordering.
Need a quote for Internal Auto Drain Valve?
Send the model or your operating parameters — unsure of a value? Mark it unknown and we will help. Monday to Saturday, 10:00 AM – 5:30 PM.
Product Details:
Flotronics supplies the Internal Float-Operated Drain Valves are a universal replacement for most Manufacturer’s Filter Housings float type drain. The internal auto drain also operates in manual mode.
A Normally Closed drain valve is Automatic, which works when the buoy ascends because of amassed fluid, releasing condensate and trash from inside the channel bowl. Typically Open channels are Semi-Automatic, which works when the carrier is depressurized, for instance toward the finish of a move. At the point when the framework is compressed, it will stay shut however the channel might be worked physically by turning the detour.
a) Easy Installation & Maintenance (Include O-ring & Lock nut)
b) Industrial Filter Housings
c) No Electricity required
d) Automatic & Semi Automatic Operation
e) Normal Open & close Concept
Selection guide
What to specify for an accurate quotation
These parameters decide which variant suits your duty. Send what you know — unknown values can be marked for engineering assistance.
Typical applications
- Compressed air filter housings
- Compressor lines
- Air receivers
- Pneumatic systems
- Workshop air supply
FAQ
Frequently asked questions
Answers to the questions buyers most often ask before requesting a quotation.
Does an internal float drain need power?
No. It is mechanical and operates by float movement as condensate collects.
What is the difference between normally open and normally closed?
Normally closed drains open automatically when the float rises. Normally open drains are semi-automatic and drain when pressure drops.
Will it fit my filter housing?
The page describes it as a universal replacement for many float drains. Send your housing details and we will confirm.
Related
Related products & guides
Need an auto drain for your filter housing?
Send the housing make, model, thread and operating pressure. We will confirm fit and quote.