Reflex Exvoid T 1/2 automatic air vent, DN15, G 1/2", PN 10
- Application: automatic air/gas removal from closed heating and cooling systems
- Connection: IG 1/2" internal thread (mounting), G 1/2" external thread (vent outlet)
- Nominal pressure: PN 10 (10 bar)
- Operating temperature range: 0-110 °C
Where Exvoid T 1/2 is used
The Exvoid T 1/2 is designed for the high points of closed, liquid-filled heating and cooling systems — manifold tops, highest points of circulation loops, substation piping. It works by float principle: when liquid rises to the set level, the float closes the opening; when gas accumulates, the float drops, gas escapes, and liquid closes the opening again. No electrical supply required — fully autonomous operation.
Technical specifications
| Parameter | Value |
|---|---|
| Code | 9250000 |
| Series | Reflex Exvoid |
| Model | Exvoid T 1/2 |
| Venting mechanism | Float-type, automatic |
| Nominal size (DN) | DN15 |
| Connection (mounting) | IG 1/2" internal thread |
| Connection (vent outlet) | G 1/2" external thread |
| Max working pressure | 10 bar (PN 10) |
| Operating temperature range | 0-110 °C |
| Body material | Brass |
| Installation position | Vertical |
| Media | Water, water/glycol mixtures up to 50/50 % |
| Dimensions (∅ × H × W) | 63 × 122 × 78 mm |
| Weight | 0.63 kg |
When to choose Exvoid T 1/2
- Highest point of closed heating systems — manifolds, top of circulation loops
- Cooling systems requiring continuous gas removal
- Substation piping systems requiring higher venting throughput than a standard 3/8" vent
- Systems with glycol mixtures up to 50 % — Exvoid T body and seals are compatible
B2B delivery and logistics via Amegata.lt
- 24-hour delivery across Lithuania (from our warehouse in Vilnius)
- Competitive B2B pricing — often below market average
- 30-day payment terms for companies (per contract)
- Free technical consultation for vent point selection
Official Reflex catalogue: reflex-winkelmann.com/9250000
Frequently asked questions
How to verify the vent is working?
Briefly loosen the vent cap on the G 1/2" outlet — if only gas is released and no liquid appears, the float mechanism is working. Continuous liquid leakage indicates float sealing failure (usually a clogged seat or debris).
Is it suitable for potable water systems?
No. The Exvoid T is intended for closed heating and cooling loops. For potable water systems, select vents with dedicated DVGW or WRAS certification.
Can it be mounted horizontally?
No. The float mechanism only works vertically — connection downward. Horizontal position disrupts the float and may cause leakage.
When to replace the vent?
Typical service life is 10-15 years in systems with clean, chemically treated liquid. Leakage or slow venting signals maintenance need — replacing the entire module is usually more economical than repair.
