Improved
Improved
Mueller/Chattanooga, Tenn, year of manufacture and main valve opening size is cast on barrel between groundline flange and bonnet. Also manufactured in Brea, CA.
Features:
- 150 psig pressure rating
- Oil filler plug on side of bonnet.
- Safety flange protection.
- Hose and pumper nozzles are caulked.
- Stem coupling
- Originally called the Mueller® Columbian Improved when introduced.
- Approximately 15 1/2 turns to open.
Year of Manufacture | Main Valve Opening Size | Catalog Number | Hydrant Styles | |
new | old | |||
1934 - 1980 | 4-1/4” | A-416 | A-24009 | 3-way |
4-1/4” | A-416 | A-24010 | 2-way | |
4-1/2” | A-416 | A-24012 | 3-way | |
4-1/2” | A-416 | A-24013 | 2-way | |
5-1/4” | A-416 | A-24015 | 3-way | |
5-1/4” | A-416 | A-24016 | 2-way | |
5-1/4” | A-416 | A-24017 | 3-way | |
6-1/4” | A-416 | A-24018 | 3-way | |
6-1/4” | A-416 | A-24019 | 2-way | |
Date | Plug Location |
1934 - 1947 | Hydrant has conventional packing and has no external oil filler plug on bonnet (4 bolt bonnet needs to be removed to rill oil reservoir). |
1948 - 1953 | Bonnet has o-ring seals and no filler plug. O-rings are used in lieu of “conventional” packing. |
1954 | External oil filler plug. (bonnet does not have to be removed). |
1962 | Sealed reservoir bonnet. S.R. is cast on bonnet. |
1934 - 1971 | Brass safety stem coupling |
1972 - 1980 | Steel safety stem coupling |
1934 - 1971 | Threaded |
1972 - 1980 | Drilled |