Automatic Brass Air Vent Valve DN10–DN25 | Radiator Heating

Automatic Brass Exhaust Valve – DN10 / DN15 / DN20 / DN25

Keep your central heating system running at peak efficiency with this Automatic Brass Air Release Valve. Available in DN10, DN15, DN20, and DN25 thread sizes, this high-precision valve automatically purges trapped air from radiator systems — no tools, electricity, or manual intervention required. Made in Mainland China.

Why Choose This Air Vent Valve?

• Premium Brass Construction: Solid brass body delivers outstanding corrosion resistance and long-lasting durability, even in high-temperature, high-humidity heating environments.
• High-Temperature & Rust Resistant: Engineered to withstand the demanding conditions of central heating systems, ensuring a reliable, leak-free seal season after season.
• Precision-Cast Components: Every internal part is cast with high precision for a consistently reliable exhaust mechanism — no air lock, no fuss.
• Standard Thread Sizing: DN10, DN15, DN20, and DN25 thread sizes conform to standard pipe fittings for quick, straightforward installation — no specialist plumber required.
• Electricity-Free Operation: Fully automatic and passive — no power source needed. The valve self-regulates to vent air as it accumulates.
• Ideal Replacement Part: A perfect drop-in replacement for worn or damaged control valves on radiator systems, keeping your heating performing optimally.
• Gold Finish: Classic gold-toned brass aesthetic that suits both modern and traditional radiator setups.

Product Specifications

Installation Notes

Please allow 2–3% dimensional variance due to manual measurement — refer to size charts and product images for guidance. Screen colour calibration may cause slight colour variations between the image and the actual product.

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Frequently Asked Questions

Q: What thread sizes does this automatic brass exhaust valve come in?

A: This automatic air release valve is available in four standard thread sizes: DN10, DN15, DN20, and DN25 — covering the most common radiator and central heating pipe fittings for a versatile, compatible fit.

Q: Does this air vent valve require electricity or batteries to operate?

A: No — this valve is completely electricity-free. It operates automatically and passively, venting trapped air from your heating system without any power source, wiring, or manual adjustment.

Q: Is this valve suitable as a replacement for a damaged radiator air vent?

A: Yes. This automatic exhaust valve is designed as a direct replacement for worn or damaged air vent valves on central heating radiator systems. The standard thread sizing ensures compatibility with most existing installations for a straightforward swap.

Q: How durable is the brass construction in a central heating environment?

A: Solid brass is an ideal material for heating applications — it is highly resistant to corrosion and rust, handles elevated temperatures with ease, and provides a reliable, long-lasting seal. Precision-cast internal components further ensure consistent performance over time.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.