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2"-12" Series 2500 RW NRS Gate Valves

2"-12" Resilient Wedge NRS Gate Valves with Mechanical Joint Ends

The AMERICAN Series 2500 Ductile Iron 250 psig AWWA Resilient Wedge Gate Valve is designed for use in drinking water, sewage and fire protection systems as well as irrigation and backflow control systems. The Series 2500 Resilient Wedge Gate Valve is furnished in configurations that are UL Listed and FM Approved.

Triple O-ring Stem Seals

Sealing the lubrication chamber is a series of three O-ring stem seals. The O-rings help to isolate the lubrication chamber.

Thrust Washers

Two thrust washers are used. One is located above, and one is located below the thrust collar. These thrust washers provide easy operation.

Ductile Iron Construction

The ductile iron body, bonnet and wedge provide strength and a pressure rating that meets or exceeds the requirements of AWWA C515. The tensile strength of ductile iron is more than twice that of cast iron. This added strength makes the Series 2500 more durable and rated at 250 psig. This strength and higher pressure rating is provided in a compact, lightweight and easy-to-handle ductile iron valve.

Fusion-Bonded Epoxy

The Series 2500 valve is epoxy coated on the interior and the exterior. The fusion-bonded epoxy coating is applied prior to assembly. The bolt holes and body-to-bonnet flange surfaces are fully epoxy coated.

Pressure-Energized Bonnet Gaskets

The body-to-bonnet seals incorporate pressure-energized o-rings which reduces the need for excessive bolt loading required by designs that use flat gaskets. The gaskets are typically reusable, which reduces downtime during any needed repair.

The Series 2500 Ductile Iron Resilient Wedge Gate Valve has these standard features:

  • All Ductile Iron Construction

  • Fully complies with ANSI/AWWA C515 and is rated at 250 psig.

  • UL Listed and FM Approved at 250 psig, in applicable configurations

  • Certified to NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372

  • Fusion-bonded epoxy coating complies with ANSI/AWWA C550

  • Triple O-ring stem seals

  • Thrust washers

  • Smooth waterway design

  • 100% leak-tight closure

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Specifications

Valves 2"-12" in size shall be of a resilient wedge design. The valve shall have a cold water rated working pressure of 250 psig.  All cast ferrous components shall be ductile iron and shall be manufactured in compliance with the latest edition of ANSI/AWWA C515.  The valve shall also be UL Listed and FM Approved, in applicable configurations. All valves shall be certified to NSF/ANSI/CAN 61 and NSF/ANSI/CAN 372.

The valve design shall be lightweight, easy to handle, and constructed with wall thickness per Table 3 of ANSI/AWWA C515. Heavy wall and/or cast gray iron bodies are not acceptable. The valve shall have a smooth and oversize waterway and have the marking "D.I." or "Ductile Iron" cast onto the body. The valve wedge shall be constructed of ductile iron in sizes 4"-12". All 4"-12" wedges shall be fully encapsulated with EPDM rubber and provided with male type guides and polymer guide covers.

Valve stems shall be sealed by three O-rings. Two of the O-rings shall reside above the thrust collar. Thrust collar shall be integral to the valve stem. Multi-piece collars that wrap around stem are not acceptable. O-rings set in a cartridge shall not be allowed.

Valves 2-1/2"-12" shall be furnished with a debris seal above the stuffing box O-rings. This seal shall also be capable of sealing against internal or external pressure equal to the valve's rated working pressure.

The valve shall also be equipped with thrust washers above and below the stem thrust collar for reduced operating torque.

All exterior valve body bolting shall be stainless steel and shall be provided with hexagonal heads with dimensions conforming to ANSI B18.2.1.  Metric size and/or socket head cap screws, or bolts, are not allowed. The operating nut shall be 2" square and shall be constructed of ductile iron fitted to a square tapered stem to help ensure even distribution of input torque.  All body gaskets shall be of the pressure energized O-ring style design. 

All internal and external ferrous surfaces of the valve body and bonnet shall have fusion-bonded epoxy coating, complying with ANSI/AWWA C550.

All valves shall be the AMERICAN Flow Control Series 2500 or 2500-1 Resilient Wedge Gate Valves.

In 4"-12" distribution lines, where pressure ratings may exceed 250 psig, a resilient wedge gate valve exhibiting a 350 psig rating by AWWA, UL and FM shall be furnished. All 350 psig rated valves shall be the AMERICAN Flow Control Series 3500.

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