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Radiator Valves: Full Port?
I needed a 1-1/4" radiator valve, so I picked one up at the Home Cheapo, and when I got it home and unscrewed the spud, I was shocked at how small the opening to the valve looked. To make sure I wasn't just imagining it I took out my calipers and measured it. It's 1.16", and there are further restrictions on both sides where the bore enters the valve body. (1-1/4 pipe has a 1.38 I.D.)
To me it looks like they took a 1" valve and put a bigger union on it. The restrictions on the side are caused by the inlet bore not being bored all the way into the body, but they couldn't have made the inlet any deeper without hitting the valve seat.
To me this is totally unacceptable. This is going on a 24-section, 6-tube Arco. That's 72 ft². A 1-1/4" runout is too small to begin with. Am I being to picky here?
Does anybody have any experience with the Matco-Norca valves they sell at PexSupply? The picture of the 1-1/4" looks almost identical to this one. The top of the union nut is about even with the top of the valve body. I'll be really ticked if I order one, pay shipping, and end up with the same valve.
Can anybody recommend a good source for good radiator valves, or do they all suck these days?
1983(?) Peerless G-561-W-S
3" drop header, CG400-1090, VXT-24