Product has got 3 operating modes.
Auto air vent 1 2 bsp.
Automatic air vent 6 bar 1 2 bsp.
Hv30 aladdin self bleeding automatic radiator valve 1 2 bsp single valve 5 81.
Operated via a float mechanism and is designed for the removal of air from systems.
By installing them in places where air tends to accumulate it is possible to prevent issues caused by air trapped in water supply pipes.
Middle knob fully screwed in automatic venting it will shut off automaticaly when there is no more air in the radiator.
Automatic air venting during operation.
Sold by plumbing4home and sent from amazon fulfillment.
Automatic air vents feature a relatively small orifice and are suitable for discharging air and other gases during normal operation.
1 2 automatic air vent 6 bar.
Spirax sarco air vent av13 1 2 in bspp description.
Operated via a float mechanism and is designed for the removal of air from systems.
Can discharge large quantities of air.
Check valve allows service and maintenance without draining system.
Air vents automatically remove air and other incondensable gases from steam systems reducing heat transfer and affecting steam temperature.
Middle knob partially screwed in vent open.
Can discharge large quantities of air.
Suitable for heating cooling or sanitary.
1 2 bsp automatic air vent auto cut off self bleeding radiator valve 9 99.
Middle knob unscrewed vent closed.
It has a shut off cap that can be used to stop auto venting if so required.
Automatic air venting during operation.
Maximum working pressure 10 bar.