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Selecting New Steam Radiator Valves
We have 22 radiators in our single-pipe steam building, and replaced 8 1" radiator valves with new BARVY-1000 Matco-Norca brass angle valves the last few years due to broken/missing handles, stem leaks that kept leaking after packing the nut with graphite string, hairline cracks in the lower valve leaking, etc. That leaves 14 that haven't been updated yet (we also have replacement handles or may want to remove them after making sure they're 100% open so tenants don't throttle them, so may not need to replace as many going forward for that).
The Bluefin RVST-100 is reported to be a matching equivalent from our online supply source, but would there tend to be a small size/fitting of the union difference between them if we prefer to match any new purchases with the ones we already installed? We might want to replace just the valve that goes on the riser and not need to use a spud wrench to remove the tail piece/nipple inside the radiator like we just did recently, so are trying to match the same model/manufacturer if possible.
Or is this not such a big deal if we buy completely new sets of matching valve & tailpieces that go with each other and replace both sections going forward? Not sure how often we'll want to replace just one section (tail piece nipple inside radiator or valve on riser only), so not sure how important it is to have the same model.