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.


Parts List     Catalog

 

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