McNab & Harlin Mfg. Co. - NYC
Dresser Industries - Bradford, PA.
M&H Valve & Fitting Co. - Anniston Alabama
Part 2

  300 & 500 models
The 300 model and very similar 500 model were each made in two V.O. sizes; 4½" and 5¼". The breakaway traffic feature is achieved by virtue of a breakable cast lug on each bolt that draws up against a snap ring in the top of the lower barrel; and bottoms against the bottom of the upper barrel.
  • These models have only the "Dresser" name cast onto the upper barrel; with no mention of M&H.
  • The V.O. size and model number are cast onto the barrel.
  • 202163 is also cast onto the barrel; this refers to a (design) patent. Another patent, 3,505,027 was taken out for this hydrant design but is not referenced on the hydrant itself.

    This is the Traffic 300 model.
    • 0181
    Nozzles: 2x 2½"
    Size: 4½" V.O.
    Dated: 75
    Location: John A. collection
    Photo: © 1999, J. Anderson    		 1287
    Nozzle: 2x 2½", 1x 4½"
    Size: 4½" V.O.
    Dated: 73
    Location: Ed M. collection
    Photo: © 2001, Ed Masminster    		 1894
    Nozzle: 2x 2½", 1x 4½"
    Size: 5¼" V.O.
    Dated: 67
    Location: John A. collection
    Photo: © 2003, J. Anderson

    And this is the Traffic 500 model.
    1787
    Nozzles: 2x 2½"
    Size: 4½" V.O.
    Dated: 71
    Location: John A. collection
    Photo: © 2002, J. Anderson    		 0260
    Nozzles: 2x 2½",1x ~4½"
    Size: 4½" V.O.
    Dated: 69
    Location: Maine
    Photo: © 2001, S. Miller    		 1421
    Nozzles: 2x 2½"
    Size: 5¼" V.O.
    Dated: 74
    Location: Massachusetts
    Photo: © 2001, J. Kaminski    		 1422
    Nozzles: 2x 2½", 1x 5"
    Size: 5¼" V.O.
    Dated: 81
    Location: Massachusetts
    Photo: © 2001, J. Kaminski

      Model 929 "Reliant"
    This is a traffic model with the breakable cast lugs on each bolt similar to that found on the 300 and 500 models.
  • Examples can be found with just M&H or both M&H and Dresser cast onto the barrel. This is indicated below with each photo when known.
  • The V.O. size and model number are cast onto the barrel. They are made in two V.O. sizes; 4½" and 5¼".
  • 5¼" V.O. hydrants of two different heights (approx. 3" different) are documented below.
    • 1295 Dresser / M&H
    Nozzles: 2x 2½", 1x 4"
    Size: 5¼" VO, short
    Dated: 84
    Location: Ed M. collection
    Photo: © 2001, Ed Masminster    		 2259 M&H
    Nozzles: 2x 2½", 1x 5"
    Size: 5¼" VO, short
    Dated: 1985
    Location: Jeff K. collection
    Photo: © 2004, J. Kaminski    		 1423 M&H
    Nozzles: 2x 2½", 1x 5"
    Size: 5¼" VO, tall
    Dated: 1987
    Location: Massachusetts
    Photo: © 2001, J. Kaminski

      Tropical Hydrant - Panama Canal Hydrant - ca. 1958 - ?
    This hydrant is for warm climates and is sometimes called a wet riser type hydrant. On M&H drawings dated November 26, 1958, it is called a Tropical Hydrant on one drawing, and Panama Canal Hydrant on another. Both examples below are from Panama.
  • Note the unusual chain rings on the caps.
  • Note the unusual operating nut assembly.
    • 0271
    Location: Panama Canal Zone
    Nozzles: 2x 2½", 1x 4"
    ©2000 Bruce A. Thale    		 side view
    1977
    Location: Bocas del Toro, Panama
    Nozzle: 2x 2½", 1x 4"
    Dated: 1968
    © 2003, Debbie Silverstein

      City Spec Models
    0034
    Model: N.Y.C. spec.
    Nozzles: 2x 2½", 1x ?"
    Note: similar to Dresser 500 hydrant
    Location: Brooklyn, NY
    Photo: © 1999, E. Kennedy    		 1119
    Model: Milw. MWW spec
    Nozzle: 1x 4½"
    Size: 5¼" V.O.
    Dated: 1955
    Location: Milwaukee, WI
    Photo: © 2001, J. Anderson    		 0553
    Model: Milw. M-III spec
    Nozzle: 1x 4½"
    Size: 5¼" V.O.
    Dated: 1967
    Location: Milwaukee, WI
    Photo: © 2000, J. Anderson    		 1282
    Model: Milw. M-V spec
    Nozzle: 1x 4½"
    Size: 5¼" V.O.
    Dated: 1971
    Location: Milwaukee, WI
    Photo: © MWW Archives    		 2531
    Model: Puerto Rico spec
    Nozzle: 2x 2½", 1x 4½"
    Size: 4½" V.O.
    Dated: 2005
    Location: Dorado, PR
    Photo: © 2010, J. Anderson
    Contact Information
    PO Box 2088
    Anniston, Alabama 36202
    Phone: 256-237-3521    		 www.mh-valve.com
    FH.O Catalog Library:
    M&H Valve No. 52
    Dresser 300 Promotional Catalog
    Dresser 500 Promotional Catalog
    Dresser 500 Operating Manual

    Part 1 , Part 2
    Back to Hydrant Pictures

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