Centurion Break Flange Help File


	Centurion® Super Centurion-200® Super Centurion-250®

When rebuilding the Break Flange the Mueller hydrant BONNET
must be disassembled and then reversed as the head is put back
together. Refer to the Centurion Bonnet link above.


	If you have ordered a Mueller boxed Break Flange Repair KIT from L&C, included are detailed instructions for installing the KIT ordered. Most Kits include illustrations for removing old assemblies. The following LC HELP Files answer many questions that the instruction list may not easily explain.

If the Mueller Fire Hydrant was properly installed, when something hits and
breaks the Break Flange(s) and internal Rod Coupling the results should look
like the picture to the left. The grooves on the Break Flanges will shear-off
and the internal rod coupling will rip apart. The rest of the old Break Flanges
will still be attached to the hydrant head base.

The water is still on to the hydrant with the Main Valve Assembly holding
closed due to the inlet water pressure behind it as shown. If the Main Valve
is holding closed tightly with no water filling the barrel, leave the water
supply ahead of the hydrant inlet shoe turned on for Break Flange and
hydrant head rebuilding. If the water supply to the hydrant is turned off,
the Main Valve Assembly and lower stem will drop down to the open position.
The top of the Lower Stem will now be too low for connection of new break
coupling and upper barrel reinstall.

Follow installation instructions that are supplied with each Mueller
Hydrant Kit ordered or download the Albertville-Centurion manual.


	Mueller Stainless Steel Break Coupling Designs

1997 - CURRENT Illustrated at left:
This is a Stainless Steel material [ASTM A890]
The Safety Stem Coupling must be installed with
notches towards the Lower Stem.
NOTE: One side is cast "This End Up" with an arrow.

1975 - 1996 Illustrated at right:
This design was made of steel with zinc plating as
standard and optionally with a black nylon coating.
One end of the coupling is clearly stamped Safety Stem
Coupling This End Up. The other end (towards the
lower stem) has a notch below the lower pin. If you
have a bunch of spare Mueller rod couplings, make
sure the coupling is a Break Coupling and not a
hydrant extension rod coupling.
THEY ARE NOT INTERCHANGEABLE.


	Mueller Break Flange Castings



				The Mueller Safety Break Flange Halves have a recess groove area that breaks in pieces when hit. The Safety Break Flange Halves are identified with a cast wording of "SAFETY" as illustrated left. When installing, the cast lettering must be facing DOWN.

						This 2-piece break flange set started out as a one piece casting with parallel break lines for breaking the casting into two pieces. The factory fractures this casting in half, As such these 2-pieces are a matched pair and should be used or stored as so. Do not split up a Mueller break flange pair. If you have accumulated spare Mueller Flanges, remember that hydrant extension flanges should never be used or assume that they serve the same design purpose. Make sure the Flange Halves are cast "SAFETY" and include the groove.






	MINIMUM CREDIT CARD ORDER IS $25.00


	Our order desk and technical support phone lines are available Monday - Friday 7:30 AM - 4:00 PM (EST) call 518-762-7024 OR Fax us 518-762-7032


	sales@landcsales.com service@landcsales.com

		All Content Copyrighted © 1986-2008 - landcsales.com L&C MUNICIPAL SALES, Inc. All Rights Reserved. All trademarks/brands property of respective owners