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Please Help Me Choose the Correct Main Vent Valves.
I currently have a 3/8 inch antler with four Gorton #1 's 3/8 inch. My endcap where it is attached has a 1/4 inch bushing with 70 years of rust as the attachment point. I am using a reducing coupler. I have a 70 year old black steel condensate return. I have a vaporstat set at 1oz. cut in and 16 oz. cut out.
The gortons hiss like crazy when pressure starts to get around 1PSI before cut out. I suspect that the return line may be a little clogged with bioslime and the narrow 1/4 inch connection point may be causing condensed steam to build in the antler.
My pro will be replacing my condensate return line with slightly oversized L grade copper and will be putting in tee's and full port ball valves so I can flush the return if it should ever clog, which I am told is unlikely with copper. He will also be replacing my endcap with a new one with a 3/4 inch port for the antler so I am building a new antler with 3/4 inch nipples, tees, elbows and unions.
I originally thought that I would buy 4 of the 3/4 x 1/2 gorton #1's and elevate them on nipples with couplers to try to keep condensed steam away from them and I also hoped that the extra 1/8 inch of inner diameter might help a little. But after partially assembling the 3/4 antler plumbing I see that it is a very heavy and lengthy assembly and I think it would require pipe strap suspended from the beams to reduce the stress on the endcap insertion point.
So I was thinking of instead using one or two Gorton #2 's with 3/4 x 1/2 inch Bell reducer couplings to reduce the length and weight of the antler. But I have been reading user comments that people have been having hissing and spitting from the Gorton #2 's even at 1 psi. Hissing and spitting are the problems I am trying to avoid. I am also uncertain if I have physical clearance, but the Gorton site says the #2's are 6+3/8 inches tall. If that is true, I will just clear the ceiling and I'll have to put some aluminum foil above the gortons on the ceiling to protect the ceiling.
Any guidance and suggestions deeply appreciated.