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Air vent threads
Tesla
Member Posts: 4
Hoffman, Gorton, Maid O' Mist or whatever the manufacturer, in N.P.T 1/8 are the threads 1/8-27 or 1/8-28? I have two taps in the same kit 27 & 28 tpi, strange huh? Both in N.P.T.
I have made a list of some old valves I will be replacing:
Barnes & Jones Vent-Rite #51
USAV 1949
Hoffman Ventor #45
what would be the modern day replacement with Gorton vent's
Thank You!
I have made a list of some old valves I will be replacing:
Barnes & Jones Vent-Rite #51
USAV 1949
Hoffman Ventor #45
what would be the modern day replacement with Gorton vent's
Thank You!
0
Comments
-
according to the following...
http://www.engineeringtoolbox.com/npt-national-pipe-taper-threads-d_750.html
1/8th NPT is 27tpi1-pipe Homeowner - Queens, NYC
NEW: SlantFin Intrepid TR-30 + Tankless + Riello 40-F5 @ 0.85gph | OLD: Fitzgibbons 402 boiler + Beckett "SR" Oil Gun @ 1.75gph
installed: 0-20oz/si gauge | vaporstat | hour-meter | gortons on all rads | 1pc G#2 + 1pc G#1 on each of 2 mains
Connected EDR load: 371 sf venting load: 2.95cfm vent capacity: 4.62cfm
my NEW system pics | my OLD system pics0
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