Re: CONX 14
Posted by Jim Courtney on
URL: http://c-sng-discussion-forum.254.s1.nabble.com/CONX-14-tp18668p18677.html
Hey Keith,
The "Siamese twin" dome safety valves were known as twin L-mount valves. I found some nice HO brass castings for these guys at Owl Mountain Models https://www.owlmtmodels.com/detail_parts/detail_parts.html
They are perhaps a bit undersized for S scale, but seem to look okay on smaller TOTC tank cars:
Unfortunately, they are currently out of stock. Info from Owl Mountain:
"This vent model represents the Master Car Builders design from 1904 for a double (or "twin") "L-shaped" manifold 5" safety vent for tank cars over 8,000 US Gal. These vents were commonly seen on 8K, 10K, and 12.5K tank cars in general service. The distinctive manifold is easily picked out in photos. These vents had an L-shaped manifold connecting the vent to the expansion dome of the tank car part way up. They were used on all general service tank cars until about 1918 when the standard recommended design was changed to mounting the same 5" vent head on a flange in the top of the dome. This prevented the L-shape manifold from expelling the commodity out of the vent instead of air. Cars built and rebuilt after about 1918 were fitted with the top vent style."
URL: http://c-sng-discussion-forum.254.s1.nabble.com/CONX-14-tp18668p18677.html
Hey Keith,
The "Siamese twin" dome safety valves were known as twin L-mount valves. I found some nice HO brass castings for these guys at Owl Mountain Models https://www.owlmtmodels.com/detail_parts/detail_parts.html
They are perhaps a bit undersized for S scale, but seem to look okay on smaller TOTC tank cars:
Unfortunately, they are currently out of stock. Info from Owl Mountain:
"This vent model represents the Master Car Builders design from 1904 for a double (or "twin") "L-shaped" manifold 5" safety vent for tank cars over 8,000 US Gal. These vents were commonly seen on 8K, 10K, and 12.5K tank cars in general service. The distinctive manifold is easily picked out in photos. These vents had an L-shaped manifold connecting the vent to the expansion dome of the tank car part way up. They were used on all general service tank cars until about 1918 when the standard recommended design was changed to mounting the same 5" vent head on a flange in the top of the dome. This prevented the L-shape manifold from expelling the commodity out of the vent instead of air. Cars built and rebuilt after about 1918 were fitted with the top vent style."
Jim Courtney
Poulsbo, WA
Poulsbo, WA
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