It has a shut off cap that can be used to stop auto venting if so required.
Auto air vent 1 2 bsp.
Hv30 aladdin self bleeding automatic radiator valve 1 2 bsp single valve 5 81.
Sold by plumbing4home and sent from amazon fulfillment.
Operated via a float mechanism and is designed for the removal of air from systems.
Can discharge large quantities of air.
Air vents automatically remove air and other incondensable gases from steam systems reducing heat transfer and affecting steam temperature.
Product has got 3 operating modes.
Suitable for heating cooling or sanitary.
Maximum working pressure 10 bar.
Middle knob unscrewed vent closed.
Operated via a float mechanism and is designed for the removal of air from systems.
Check valve allows service and maintenance without draining system.
Suitable for heating cooling or sanitary.
1 2 automatic air vent 6 bar.
Automatic air venting during operation.
By installing them in places where air tends to accumulate it is possible to prevent issues caused by air trapped in water supply pipes.
Can discharge large quantities of air.
Automatic air vents feature a relatively small orifice and are suitable for discharging air and other gases during normal operation.
Middle knob partially screwed in vent open.
Automatic air vent 6 bar 1 2 bsp.
Automatic air venting during operation.
1 2 bsp automatic air vent auto cut off self bleeding radiator valve 9 99.
Middle knob fully screwed in automatic venting it will shut off automaticaly when there is no more air in the radiator.