Air Vent 1/2″
£1.38 inc VAT (£1.15 ex VAT)
✓ In Stock
Free Click and Collect, no minimum order, from our Glasgow counter at 555 South Street, G14 0QX. Open Mon-Fri 8am-5pm, Sat-Sun 8am-1pm.
Delivery: free UK mainland delivery on orders over £250, or £12 + VAT under £250. In stock orders placed by 2pm Monday to Friday usually go out for next working day delivery. Returns: 14 days. Call 0141 404 5128 for a return number first. Delivery and Returns
Trade and public welcome at 555 South Street, Glasgow G14 0QX. Call 0141 404 5128.
A 1/2″ air vent for a radiator, used to let out trapped air so the rad heats right across the top. Screws into a spare 1/2″ tapping. Plumb Parts in Glasgow can sort you out.
This air vent has a 1/2″ thread and screws into a radiator tapping, giving you a point to release air from the top of the rad. Trapped air is the usual reason a radiator is hot at the bottom and cold at the top.
Fitting a 1/2″ air vent
Radiators normally come with a vent in one top corner. If it is damaged, missing or seized, swap it for a new one. It needs a matching 1/2″ tapping, so check the old part before you buy.
Turn off the heating and isolate the radiator at both valves. Have towels ready, because some water will come out. Remove the old vent, seal the new one with PTFE or its washer, and screw it in firmly.
Open the valves, bleed out the air until water appears, and close it off. On a sealed system, top up the pressure if the gauge has dropped.
Other radiator accessories are in our Flexible range on the site.
Air vents from our Glasgow counter
Our trade counter at Plumb Parts, 555 South Street, Glasgow G14 0QX is open Mon-Fri 8am-5pm and Sat-Sun 8am-1pm, and the online shop takes orders at any hour.
Specification
- Sizes: 1/2″ thread
- Suitable for: Releasing trapped air from a radiator with a 1/2″ top tapping
Common Questions
What are the signs of air in a radiator?
If it is warm at the bottom and cold across the top, there is air trapped inside. Gurgling noises from the radiator point the same way.
Can I change an air vent without draining the system?
Close both radiator valves first, then have towels ready, as some water will still come out. On a sealed system, check the pressure gauge once it is back on.
Why does my radiator keep filling with air?
It can point to a small leak letting air in, or to corrosion inside the system. If you are bleeding the same radiator every week, get the system checked and the inhibitor topped up.
Only logged in customers who have purchased this product may leave a review.
Reviews
There are no reviews yet.