Hi, apologies if this has already been discussed--I couldn't find it if so.
I have two older CI steam boilers. I added gorton #1 main vents to each, about 18" back from the end of the lines. At the time I didn't know to add wye strainers. One of the vents got stuck open the other day, and was just spewing steam into the basement. I am assuming some crud just got stuck in the valve preventing it from closing. I tapped it with a wrench and it closed right up.
Seems to be working fine now (a few days later), but now I'm nervous--I want to add wye strainer to each.
I have zero vertical room, (low ceiling vs main line diff), so they would need to be added on the 3/4 or 1" horizontal run before the 90 up to the vents.
1. does material matter for these? I was going to get Watts LF777SI (like these: http://www.supplyhouse.com/Watts-0379112-3-4-LF777SI-Lead-Free-Brass-Wye-Strainer-Threaded)
, but not 100% sure that's correct--any reason to go with another style/material?
2. Does size matter? The vents are gorton #1s, so they are already at 3/4. But the Ts off the main vents are 1" which neck down to 3/4, so I could potentially put 1" wye before the reduction to 3/4. Any reason to do that, since it costs more I'm tempted to stick with 3/4.
thank you! Please let me know if you need more information than I've provided!