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1.4 Rev. 10-15 Shaded area indicates change M-94 FIRE HYDRANTS M-94 Fire Hydrant Features & Benefits TheMETROPOLITAN/M-94isdesignedaroundtheneeds of the people who maintain and repair it. That’s why we’ve kept the number of parts to a minimum and designed the hydrant so it is easily repairable by one person. ❏ MadetocomplywiththerequirementsofANSI/AWWA C502,UL246,FM1510,andmadeinaU.S.ISO 9001certifiedfactory. ❏ ADuctileIronbonnetissecurelyfastenedtotheupper standpipe with inter-locking “breech lock” lugs for tamperresistance.Itiseasilyremovedforaccessto the main valve. ❏ Thebonnetlockingscrewistamperresistant,assuring security of the bonnet by preventing its rotation. ❏ TheDuctileIronoperatingnutwithaweathershield weatherproofsthehydrant.DuctileIronprovides durabilityandwearresistance.Atamperresistant alloy steel locking pin fastens the operating nut to the revolving nut. ❏ Thebronzeholddownnutistotallyenclosedbytheskirt of the weather shield and is locked in the bonnet for extrasecurity.ItisO-ringsealedforaddedprotection. ❏ Astopnutprovidesapositivehalttomovementofthe valve rod while opening. The rod cannot be placed in compression if the hydrant is “over-opened.” ❏ Ananti-frictionbearingensureseasyoperationby reducingfriction.Itismadeoftough,reliableAcetal Polymer for strength and wear resistance. ❏ Alubricationchamberisfilledwithall-temperature grease ensuring positive lubrication each time the hydrant is opened. ❏ Therevolvingnuthasthreechannelstoallowthe grease to move around the rod threads as well as above and below the thrust collar during operation. ❏ Thebronzerevolvingnutisthedirectconnection between the operating nut and the rod threads. True dry-topdesignisdoubleO-ringsealed. ❏ Abronzerodsheathprovidesasmoothbronze-tobronzenoncorrodiblesealingsurfaceforreliable, positivesealingbyO-rings. ❏ TheDuctileIronupperstandpiperesiststrafficimpact damage. ❏ Thehydranthasstreamlinedcurves.Boththenozzle sectionandthenozzleshavesweepingcurvesto providemaximumflowandminimumheadloss. ❏ Thethreaded-innozzlesareO-ringsealedand mechanicallysecuredwithstainlesssteelnozzle locks. ❏ PROTECTOP™ ground line coupling ensuring reliable fractureandquickrepairaftertrafficimpact.The coupling can be easily removed to install an extension section or loosened to rotate the hydrant to any position after installation. ❏ Thecastironrod coupling is designed to break with trafficimpact,leavingnoloosepiecesthatcoulddrop into the main valve area. ❏ Theuppervalveplateisallbronzeconstructionwith specially formulated rubber drain valve facings. ❏ Thehydranthasabronzedrainoutlet.Toensurea non clogging drain way which leads to double drains inthesidesoftheshoe.Drainsareforcedflushed during opening and closing of the main valve. ❏ Thecompressionmainvalveopensagainstpressure. ❏ TheDuctileIronshoeisepoxycoatedonboththe interior and exterior surfaces for maximum corrosion protection.

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M-94 FIRE HYDRANTS PARTS 1.5 Shaded area indicates change Rev. 10-15 Part Name OperatingNutwithLubricationPort OperatingNutSeal OperatingNutLockingPin Hydrant Lubricant (in chamber) TravelStopNut HoldDownNut HoldDownNutScrew Bonnet BonnetLockingScrew BonnetSeal HoldDownNutO-ring Bonnet-RevolvingNutO-rings RevolvingNut InnerRevolvingNutO-rings PumperNozzle PumperNozzleCapGasket PumperNozzleCap PumperNozzleO-ring HoseNozzle† HoseNozzleCapGasket HoseNozzleCap HoseNozzleO-ring ChainAssembly ValveRodUpper,IncludingCopper SheathwithO-ringandShear Proof Rod Pin 25 Standpipe Upper 26 Valve Rod Coupling (Frangible) 27 Coupling Retaining Rings 28 Rod Coupling Pins 29 Standpipe Coupling Seal 30 Standpipe Coupling Halves (Frangible) 31 StandpipeCouplingBoltandNut 32 Standpipe Lower 33 Valve Rod Lower 34 Top Plate Pin - Shear Proof 35 Valve Top Plate 37 Shoe Locking Key 38 O-ringGasket 39 DrainValveFacing 42 Seat Ring 43 SeatRingO-ring 44 MainValve 45 ValveBottomPlate 46 Shoe,IncludingBronzeSub-Seat 47 Anti-FrictionBearing *Notshown NozzleWedgeLock **Notshown Dampener Item # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Qty, 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 1 1 1 2 2 2 2 1 1 1 1 2 2 1 2 2 1 1 1 1 4 1 2 1 2 1 1 1 1 3 1 Material DuctileIron Rubber Steel Diana2100 Steel Bronze Steel DuctileIron Stainless Steel Rubber Rubber Rubber Bronze Rubber Bronze Rubber CastIron Rubber Bronze Rubber CastIron Rubber Steel Steel DuctileIron GrayIron Stainless Steel Stainless Steel Rubber GrayIron Stainless Steel DuctileIron Steel Steel Bronze Stainless Steel Rubber Rubber Bronze Rubber Rubber DuctileIron DuctileIron Acetal Bronze Rubber †Hydrants dated 2008 and prior use the original U.S. Pipe hydrant style nozzles and caps; those dated 2009 and after use Mueller® style nozzles, nozzle locks and caps which are not interchangeable with the original style.

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