Mueller® Super Centurion 250(tm) Fire Hydrant...

From bonnet to shoe, performance is built in

Performance is the real test of a fire hydrant. Proven flow characteristics, 250 psig rating, and easy operation and maintenance are among the features of the Mueller Super Centurion 250 3-Way Fire Hydrant. Plus, the hydrant is backed by a 10-year limited warranty on materials and workmanship -- and our plant is ISO 9001 certified, the highest level available.

Dry-top design ...

with unique, self-oiling system, provides automatic, positive lubrication for easy operation, even after years of service. All stem threads and bearing surfaces in the operating mechanism are force lubricated each time the hydrant is operated. Dual O-ring seals prevent lubricant loss during shipping, storage, or installation, and keep water away from stem threads and bearing surfaces when the hydrant is in use. An anti-friction washer adds to easy operation.

Hose and pumper nozzles ...

are threaded-in for easy field replacement if damaged, or for changeover to different thread style. A special locking method makes installation simple and secure. The nozzles can be faced in any direction by loosening the safety flange bolts and rotating the upper barrel assembly.

Improved safety flange and stainless steel stem coupling ...

perform more predictably to protect the main connection from traffic induced damage and minimize damage to the hydrant. If struck by a vehicle, the safety flange breaks away below the ground flange area and the safety stem coupling pulls apart. No loose pieces can fall into the lower barrel where they could affect main valve or drain openings. The high strength stainless steel safety coupling resists corrosion and assures a tight connection between the stem sections during normal hydrant operation. Upon traffic impact, the coupling tears away, leaving the lower stem below ground level where it cannot be depressed by a vehicle tire, and the main valve remains closed. Service is restored quickly and easily without excavation by replacing the safety flange and coupling using a convenient repair kit.

Reversible, compression-type main valve ...

closes with water pressure for positive sealing. Easy maintenance or repair of the entire barrel assembly can be accomplished from above ground without water shutoff. Double drain valves are force flushed each time the hydrant is operated and provide drainage of the barrel. A special wrench allows removal of the patented reversible main valve and seat ring from either bonnet or ground level flange. The main valve is made of durable rubber which provides a long service life, yet is reversible, providing a convenient spare in place.

Shoe is designed for maximun flow and easy connection...

with its smooth transitional contours, extended neck and integral anti-rotational pads, allowing use of standard tee-head bolts. The shoe has large blocking pads for easier setting and two lugs for stapping. (Strapping lugs are not provided on flanged connections.) The inside of the shoe is covered with Mueller HP(R) Epoxy Coating. This thermosetting epoxy forms a tough, corrosion-resistant barrier to chemicals, physical impact and electric currents.

O-ring sealed flanges ...

at the bonnet, ground line and shoe simplify maintenance by eliminating gasket adhesion at these points, making disassembly easier. The O-rings are eaier than flat gasketts to position during reassembly, and provide superior pressure handling.
 
 

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