Steam Radiator Air Vent Sizes

Many air vents are bullet shaped but they can be many different shapes and sizes.

Steam radiator air vent sizes. Maximum operating pressure 6 psig 0 4 bar this vent is shown just above. Plumbing supply now has various radiator valves in all sizes from 1 8 to 1 1 2. Main line air vents in one building were replaced with open pipe orifices of different sizes and the resulting fill characteristics of the main steam lines were observed. A vent port size for every room from the largest size for the coldest rooms to the smallest size for the too hot rooms.

Venting steam systems using a capacity chart a while back steve pajek and i had a reason to question how much air a radiator trap could pass since until steam hits the radiator trap it s an air vent or at least a venting means. Get bronze steam radiator angle valves straight steam vent more. Hoffman steam air vent 40 1 8 angle steam radiator air valve 401440. The radiator air vent or air valve also called a steam vent or steam valve is used only in one pipe steam boiler systems.

1 8 npt angle connection. It is usually located at the end of the radiator opposite the supply pipe about halfway up or higher towards the top. In this video this old house plumbing and heating contractor richard trethewey and host kevin o connor cut threads for a new air vent. We also manufacture and market a.

Single non adjustable port. Enlarge the existing air vent hole in radiator with 7 16 inch diameter high speed steel drill bit. Can radiator covers be used with these. The purpose of the main line air vent is to rapidly vent the relatively large quantity of.

Vertical radiator steam vents. Maid o mist manufactures and markets automatic and manual air elimination valves for hydronic steam and solar applications. Air valve non vacuum float type vent. Put a inch tapered tap onto a ratchet wrench and cut new threads into the 7 16 inch hole.