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Mueller - Albertville
CENTURION Bonnet PARTS
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Centurion-150®
Super Centurion-200®
Super Centurion-250®

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Albertville - CENTURION Series
BONNET PARTS and KITS

Updated 01/26/2009

This page includes the following information:

ORDERING NOTES FOR BONNET PARTS

Some parts require the Direction Of Opening to be stated. 

OPEN, followed by a directional arrow indicates either a Left or Right to open water flow from hydrant

Open LEFT
Counter clockwise

Open RIGHT
   Clockwise

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Bonnet Build Code
   SR, ASR, or BSR

Operating Nut Types
The SHAPE and SIZE of the Operating Nut must be know for certain parts.

The wrench nut ends of the hydrant nozzle CAPS should have the same Shape and Size as the Operating Nut.

Δ When ordering any internal part, it is based on how the hydrant opens and NOT by the way any individual part installs or how it UN-installs from the hydrant.

NOTE**

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Please specify the Size and Shape of the Wrench  Nut when ordering.
National Standard size and shape is 1 1/2" Pentagon, measured from point to opposite flat.

WHEN ORDERING:
L&C supplies the Standard 1-1/2" Pentagon Size unless otherwise noted.

Square, Hexagon, or other types can also be furnished.

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CENTURION-150        (150  WP)     MFG: 1975 -  late 1987

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Has a weather cap and operating nut is threaded for weather cap
Main  Valve Opening Sizes Produced: 4-1/2" and 5-1/4"

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Imp77s
Imp76s
Imp78s
Imp79s
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Ill. #

Description

LC №

Price
 Each

Order

A-1
size**

Operating  Nut Open LEFT
with threads for weather cap

131000

171.60

QTY:

A-1
size**

Operating  Nut Open RIGHT
with threads for weather cap

131001

171.60

QTY:

A-2

Weather  Cap - Open LEFT

131004

26.26

QTY:

A-2

Weather  Cap - Open RIGHT

131005

26.26

QTY:

A-3*

Hold  Down Nut "O" Ring

131006

6.76

QTY:

A-4

Hold  Down Nut Open LEFT

131007

54.52

QTY:

A-4

Hold  Down Nut Open RIGHT

 131008

54.52

QTY:

A-5*

Bonnet  "O" Ring

131010

6.76

QTY:

A-6*

Anti-Friction  Washer

 131011

2.00

QTY:

A-9

Bolt/Nut Set for bonnet, Both VO..8-sets required per bonnet

131018

7.60

QTY:

A-10*

Bonnet  Gasket, Flat,  4 1/2" and  5 1/4" VO    1977-1987

 131019

14.46

QTY:

A-12*

Stem  "O" Ring (2-per hyd)

131030

6.76

QTY:

A-11

Upper  Stem

see  below

  NOTE*   These parts are included in the Mueller BONNET REBUILD KIT     See below or click here

OIL for Mueller Bonnets

Mueller Oil

Ill. #

Description

LC №

Price
 Each

Order

A-51S*

Bonnet Oil 10.5 Oz Container

 131170

14.75

QTY:

A-51P

12-Pack of above 10.5 Oz size

131171

184.15

QTY:

A-51G

Bonnet Oil Gallon Container

131172

39.02

QTY:

  NOTE*   This part is included in the Mueller BONNET REBUILD KIT     See below or click here

Use only genuine Mueller oil for protection of O-ring seals and complete operation in a temperature range of minus -60 to plus 150 degrees.

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CENTURION-200      (200  PSI)
3-Way Nozzles... 4 1/2" and 5 1/4" MFG. : Late 1987 – March 1997
2-Way Nozzles... 4 1/2" and 5 1/4" MFG.  Late 1987 - PRESENT
1-Way Nozzle..... 4 1/2"  MFG.  Late 1987 - PRESENT

CENTURION-250      (250  PSI)   [ AWWA and UL/FM ]
3-Way Nozzles: 4 1/2" and 5 1/4" MFG.  April 1997 – PRESENT

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Ill. #

Description

LC №

Price
 Each

Order

A-1
size**

Operating  Nut, Open LEFT

131002

171.60

QTY:

A-1
size**

Operating  Nut, Open RIGHT

131003

171.60

QTY:

A-85 *

Weather  Seal

131148

3.71

QTY:

A-3*

Hold  Down Nut "O" Ring

131006

6.76

QTY:

A-84

Hold  Down Nut Open LEFT

131145

54.52

QTY:

A-84

Hold  Down Nut Open RIGHT

131146

54.52

QTY:

A-5*

Bonnet  "O" Ring

131010

4.85

QTY:

A-6*

Anti-Friction  Washer

 131011

2.00

QTY:

A-9

Bolt/Nut Set for bonnet, Both VO..8-sets required per bonnet

131018

7.60

QTY:

A-10*

Bonnet  Flat Gasket 4 1/2" & 5-1/4" sizes for 200 PSI Centurion-200

131019

14.46

QTY:

A-10*

Bonnet  O-Ring Seal,  4 1/2" & 5-1/4" sizes for 250 PSI Centurion-250

131020

11.60

QTY:

A-12*

Stem  "O" Ring (2-per hyd)

131030

6.76

QTY:

A-11

Upper  Stem

see  below

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  NOTE*   These parts are included in the Mueller BONNET REBUILD KIT     See below or click here

OIL for Mueller Bonnets

Ill. #

Description

LC №

Price
 Each

Order

A-51S*

Bonnet Oil 10.5 Oz Container

 131170

14.75

QTY:

A-51P

12-Pack of above 10.5 Oz size

131171

184.15

QTY:

A-51G

Bonnet Oil Gallon Container

131172

39.02

QTY:

  NOTE*   This part is included in the Mueller BONNET REBUILD KIT     See below or click here

Use only genuine Mueller oil for protection of O-ring seals and complete operation in a temperature range of minus -60 to plus 150 degrees.

Replacement BONNETS for Centurion series

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4 1/2" VO

Hydrants Dated: 1976 or Older.  Bonnet casting is no longer available. Upper Barrel casting must be replaced, new style bonnet, and a 5-1/4" Bonnet Gasket. All other parts can be reused. For pricing purposes, use the following listed "Common Bonnet", along with a replacement upper barrel casting.

Hydrants dated 1977 or later use the "Common Bonnet" (marked BSR) and common bonnet gasket/Oring combo.

Ill. #

Description

LC №

Price
 Each

Order

A-11

Bonnet Casting, BSR Common
fits 1977 - Present years.  Open LEFT

 131015

271.27

QTY:

A-11

Bonnet Casting, BSR common
fits 1977 - Present years,  Open RIGHT

131016

271.27

QTY:

A-10CG

Bonnet Gasket/Oring for above
fits 1977 - newer

131019

14.46

QTY:

A-9s

8-pair of Bolt/Nut Set for bonnet

131014

60.77

QTY:

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5-1/4" VO

Hydrants dated 1975 - Present:
Use the "Common Bonnet" (marked BSR) and common bonnet gasket/Oring combo.

Ill. #

Description

LC №

Price
 Each

Order

A-11

Bonnet Casting, BSR Common
fits 1977 - Present years.  Open LEFT

 131015

271.27

QTY:

A-11

Bonnet Casting, BSR common
fits 1977 - Present years,  Open RIGHT

131016

271.27

QTY:

A-10CG

Bonnet Gasket/Oring for above
fits 1977 - newer

131019

14.46

QTY:

A-9s

8-pair of Bolt/Nut Set for bonnet

131014

60.77

QTY:

A-11        UPPER STEMS For     CENTURION Series

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upper stems improved5
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The Upper Stems for Mueller Centurion series all include the cross pin for seat removal tool, listed below under tools.

Note On 5-1/4" VO Size: The upper barrel casting changed heights 3-times over the years, thus the 3 lengths of stems available.

Order by the Valve Open Size, Direction Of Opening, and casting date from upper barrel.

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VO SIZE

Description

Hydrant Opening Direction

Stem
 Length

LC №

Price
 Each

Order

4-1/2"

Upper Stem  All Years

Open LEFT

27 9/16"

131021

151.99

QTY:

4-1/2"

Upper Stem  All Years

Open RIGHT

27 9/16"

131022

151.99

QTY:

x

5-1/4"

Upper Stem  1975-1976

Open LEFT

29 1/32"

131023

151.99

QTY:

5-1/4"

Upper Stem  1975-1976

Open RIGHT

29 1/32"

131024

151.99

QTY:

5-1/4"

Upper Stem  1977-1986

Open LEFT

28 13/32"

131025

158.88

QTY:

5-1/4"

Upper Stem  1977-1986

Open RIGHT

28 13/32"

131026

158.88

QTY:

5-1/4"

Upper Stem  1987 to Present

Open LEFT

27 9/16"

131021

151.99

QTY:

5-1/4"

Upper Stem  1987 to Present

Open RIGHT

27 9/16"

131022

151.99

QTY:

BONNET KIT  Mueller Centurion  Series
Used on All Years and All Valve Opening Sizes

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Complete  Bonnet rebuild kit contains all Gaskets, O-Rings and Lubricant required.
This one Kit fits ALL VERSIONS of Mueller CENTURION Series Hydrants and Both Valve Opening Sizes made.
Illustrated instructions are included.

Description

LC №

Each

Order

Contains The Following Items illustrated in color  above:
(2)-A3 , (2)-A5 , (1)-A6 , (1)-A10  Flat Gasket , (1)-A10 O-Ring , (3)-A12 O-Rings , (1)-A85 Seal,
and (1)- 10.5 oz Can Mueller Bonnet  Oil

131189

$  59.71

QTY:

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SPECIAL TOOLS Required For CENTURION BONNET  Rebuilding

For Centurion Bonnet repairs, the following special tools are recommended.  Their use is illustrated on our Centurion Bonnet Maintenance procedures page.  The link is listed below.

  Hydrant Head Maintenance WRENCH

MH06

The large end is used to remove and install the  Hold Down Nut [in red] from all Mueller Hydrants. 

hydrant head with operating nut colored

The middle of the wrench removes the weather cap and operates both rocker and pin lug adapters that are attached to the nozzles.

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MH06b

The Small end is called a Wrench Nut. The wrench nut ends of the hydrant nozzle CAPS should have the same Shape and Size as the Operating Nut.

MH06d
MH06c

NOTE**

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Please specify the Size and Shape of the Wrench  Nut when ordering.
National Standard size and shape is 1 1/2" Pentagon, measured from point to opposite flat.

WHEN ORDERING:
L&C supplies the Standard 1-1/2" Pentagon Size unless otherwise noted.

Square, Hexagon, or other types can also be furnished.

Description

LC №

Each

Order

Mueller Hydrant Head Maintenance Wrench

131173

$  29.41

QTY:

  BRASS SLEEVE   for bonnet removal     

A367 Brass Sleeve

The bonnet removal Brass Sleeve is used to protect the Bonnet O-rings and stem threads from being damaged when removing and/or replacing the Bonnet Assembly back onto the upper barrel.  For Centurion and Improved design dry-top hydrants. The sleeve is 14" long and includes a detent inside of sleeve. This detent makes the sleeve a threaded On and Off design.
This holds the Brass Sleeve onto the stem threads while you are removing and reinstalling the bonnet.

Description

LC №

Each

Order

14" Brass Sleeve with Detent for Mueller Bonnet repairs

131177

$  68.00

QTY:

131175

The sleeve is 11" long.  For Centurion and Improved design dry-top hydrants.  No detent inside of sleeve.

Description

LC №

Each

Order

11" Brass Sleeve for Mueller Bonnet repairs

131175

$  38.50

QTY:

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Maintenance Procedures

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