Topic: Experience Re-Tapping a Steam Radiator Air Vent Hole?
Experience Re-Tapping a Steam Radiator Air Vent Hole?
I have hot water steam radiators with 1/8″ air vent valves. Upon going to replace one of the air vents I discovered that the threads on the the famlae portion of the radiator itself are stripped and it subsequently stripped my new vent upon trying to install. I would assume the threads need to re-tapped and am looking for any guidance on the process. I think that drilling out with a 7/16″ bit and then re-tapping with a 1/4″ x 18 NPT tap woiuld create appropriate new threads. I think I could then insert a 1/4″ to 1/8″ reducer bushing to fit the 1/8″ air vent. Does this sound appropriate? Appreciate any guidance!