SENTINEL 250™ FIRE HYDRANT
SENTINEL 250™ FIRE HYDRANT
The Sentinel 250 Hydrant is designed around the needs of the people who maintain and repair it. The number of parts has been kept to a minimum and the hydrant designed to be easily repairable.
Features & Benefits:
- Made to comply with the requirements of ANSI/AWWA C502, UL Listed, FM Approved and Certified to ANSI/ NSF 61 & 372 and manufactured in a U.S. ISO 9001 certified factory.
- A Ductile Iron bonnet is securely fastened to the upper standpipe with inter-locking “breech lock” lugs for tamper resistance. It is easily removed for access to the main valve.
- The bonnet locking screw is tamper resistant, assuring security of the bonnet by preventing its rotation.
- The Ductile Iron operating nut with a weather shield weatherproofs the hydrant. Ductile Iron provides durability and wear resistance. A tamper resistant alloy steel locking pin fastens the operating nut to the revolving nut.
- The bronze hold down nut is totally enclosed by the skirt of the weather shield and is locked in the bonnet for extra security. It is O-ring sealed for added protection.
- A stop nut provides a positive halt to movement of the valve rod while opening. The rod cannot be placed in compression if the hydrant is “over-opened.”
- An anti-friction bearing ensures easy operation by reducing friction. It is made of tough, reliable Acetal Polymer for permanence and strength.
- A lubrication chamber is filled with all-temperature grease ensuring positive lubrication each time the hydrant is opened.
- The revolving nut has three channels to allow the grease to move around the rod threads as well as above and below the thrust collar during operation.
- The bronze revolving nut is the direct connection between the operating nut and the rod threads. True dry-top design is double O-ring sealed.
- A bronze rod sheath provides a smooth bronze-to-bronze non-corrodible sealing surface for reliable, positive sealing by O-rings.
- The Ductile Iron upper standpipe resists traffic impact damage.
- The hydrant has streamlined curves. Both the nozzle section and the nozzles have sweeping curves to provide maximum flow and minimum head loss.
- The threaded-in nozzles are O-ring sealed and mechanically secured with stainless steel nozzle locks.
- PROTECTOP™ ground line coupling ensuring reliable fracture and quick repair after traffic impact. The coupling can be easily removed to install an extension section or loosened to rotate the hydrant to any position after installation.
- The stainless steel rod coupling is designed to break with traffic impact, leaving no loose pieces that could drop into the main valve area.
- The upper valve plate is all bronze construction with specially formulated plastic drain valve facings.
- The hydrant has an all bronze drain outlet. To ensure a non-clogging drain way which leads to double drains in the drain ring. Drains are forced flushed during opening and closing of the main valve.
- The compression main valve opens against pressure and is reversible providing a convenient spare in place.
- The Ductile Iron shoe is epoxy coated on the interior for maximum corrosion protection.
DEMONSTRATION VIDEO
Maintenance Manual Brochure Full Line Catalog
Submittal Drawings:
Item # | Part Name | Qty. | Material |
U-1 | Operating Nut with Lubrication Port | 1 | Ductile Iron |
U-2 | Operating Nut Seal | 1 | Rubber |
U-3 | Operating Nut Locking Pin | 1 | Steel |
U-4 | Hydrant Lubricant (in chamber) | 1 | Diana 2100 |
U-5 | Travel Stop Nut | 1 | Steel |
U-6 | Hold Down Nut | 1 | Bronze |
U-7 | Hold Down Nut Screw | 1 | Steel |
U-8 | Bonnet | 1 | Ductile Iron |
U-9 | Bonnet Locking Screw | 1 | Stainless Steel |
U-10 | Bonnet Seal | 1 | Rubber |
U-11 | Hold Down Nut O-ring | 1 | Rubber |
U-12 | Bonnet - Revolving Nut O-rings | 2 | Rubber |
U-13 | Revolving Nut | 1 | Bronze |
U-14 | Inner Revolving Nut O-rings | 2 | Rubber |
U-15 | Pumper Nozzle | 1 | Bronze |
U-16 | Pumper Nozzle Cap Gasket | 1 | Rubber |
U-17 | Pumper Nozzle Cap | 1 | Cast Iron |
U-18 | Pumper Nozzle O-ring | 1 | Rubber |
U-19 | Nozzle Lock | 3 | Stainless Steel |
U-20 | Hose Nozzle | 2 | Bronze |
U-21 | Hose Nozzle Cap Gasket | 2 | Rubber |
U-22 | Hose Nozzle O-ring | 2 | Rubber |
U-23 | Hose Nozzle Cap | 2 | Cast Iron |
U-24 | Valve Rod Upper | 1 | Steel |
U-25 | Standpipe Upper | 1 | Ductile Iron |
U-26 | Safety Coupling | 1 | Stainless Steel |
U-27 | Cotter Pin | 2 | Stainless Steel |
U-28 | Clevis Pins | 2 | Stainless Steel |
U-29 | Safety Flange O-ring | 1 | Rubber |
U-30 | Traffic Standpipe Coupling Halves | 2 | Cast Iron |
U-31 | Standpipe Coupling Nuts & Bolts | 2 | Stainless Steel |
U-32 | Valve Rod Lower | 1 | Steel |
U-33 | Standpipe Lower | 1 | Cast Iron |
U-34 | Top Plate Pin - Shear Proof | 1 | Stainless Steel |
U-35 | Upper Valve Plate | 1 | Bronze |
U-36 | Drain Valve Facing | 2 | Rubber |
U-37 | Drain Valve Facing Screw | 4 | Stainless Steel |
U-38 | Bottom Seat O-ring | 1 | Rubber |
U-39 | Drain Ring | 1 | Bronze |
U-40 | Seat Ring | 1 | Bronze |
U-41 | Drain Ring Housing | 1 | Cast Iron |
U-42 | Drain Ring Housing O-ring | 1 | Rubber |
U-43 | Main Valve | 1 | Rubber |
U-44 | Lower Valve Plate | 1 | Cast Iron |
U-45 | Cap Chains | 3 | Steel |
U-46 | Chain Hooks | 1 | Steel |
U-47 | Upper Rod Pin | 1 | Stainless Steel |
U-48 | Shoe Bolt and Nut |
| Steel** |
U-50 | Shoe | 1 | Ductile Iron |
U-52 | Top Seat O-ring | 1 | Rubber |
U-56 | Anti-Friction Bearing | 1 | Acetal |
U-57 | Sleeve | 1 | Copper |
U-58 | Rod O-ring | 1 | Rubber |