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American-Darling® & Waterous® Hydrants

4-1/2” American-Darling® Mark 73-5

The 4-1/2” American−Darling® Mark 73−5 fire hydrant, by AMERICAN Flow Control, incorporates more than 100 years of experience in design, manufacture and field experience. This means dependable and efficient operation when needed.

Introduced in 1973, the 4 ½” American-Darling Mark 73−5 fire hydrant is AWWA rated at 250 psig and is seat tested at 500 psig. This fire hydrant meets and exceeds all requirements of ANSI/AWWA C502 for dry barrel fire hydrants.

The 4-1/2” Mark 73−5 fire hydrant has all the features you expect from a high-quality fire hydrant. The all-bronze seat and bronze drain ring assure that the fire hydrant is easily repaired by just one person. The epoxy-primed and polyurethane top-coat system on the external surfaces on the upper barrel provides a durable, high-gloss finish that, under normal conditions, should continue to look good for years without repainting.

The American-Darling 4-1/2” Mark 73-5 design has been manufactured for more than 50 years.

UL LISTED AND FM APPROVED

The American-Darling 4-1/2” Mark 73-5 fire hydrant is UL Listed and FM Approved in applicable configurations.

CERTIFIED TO NSF/ANSI/CAN 61 AND NSF/ANSI/CAN 372

The American-Darling 4-1/2” Mark 73-5 fire hydrant is Certified as complying with NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372, which exhibit compliance with the U.S. Safe Drinking Water Act.

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Standard Dimensions

Depth of Trench

Length of Lower Rod

1’-0"

9.50"

1’-6"

15.50"

2’-0"

21.50"

2’-6"

27.50"

3’-0"

33.50"

3’-6"

39.50"

4’-0"

45.50"

4’-6"

51.50"

5’-0"

57.50"

5’-6"

63.50"

6’-0"

69.50"

6’-6"

75.50"

7’-0"

81.50"

7’-6"

87.50"

8’-0"

93.50"

8’-6"

99.50"

9’-0"

105.50"

9’-6"

111.50"

10’-0"

117.50"

10’-6"

123.50"

11’-0"

129.50"

11’-6"

135.50"

12’-0"

141.50"

12’-6"

147.50"

13’-0"

153.50"

13’-6"

159.50"

14’-0"

165.50"

14’-6"

171.50"

15’-0"

177.50"

15’-6"

183.50"

16’-0"

189.50"

16’-6"

195.50"

17’-0"

201.50"

17’-6"

207.50"

18’-0"

213.50"

18’-6"

219.50"

19’-0"

225.50"

19’-6"

231.50"

NOTES

  1. Depth of trench is the nominal distance from groundline to bottom of connecting pipe.

  2. Size and shape of nut on operating nut and cap, threading on nozzles and caps, and the direction of opening made to specifications.

  3. Cap chains are furnished unless specified otherwise.

  4. Working pressure 250 psig; test pressure 500 psig.

  5. Hydrant conforms to AWWA specifications C502.

  6. Upper barrel can be rotated 360°.

  7. FM Approved and UL Listed at 200 psig in allowable configurations.

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