This Resilient Wedge Gate Valve is available with ALPHA ends in sizes 4” -12” and is designed for use in drinking water, sewage and fire protection water systems as well as irrigation and backflow control systems. Its unique design offers compatible with several pipe materials, including ductile iron, cast iron, HDPE and PVC pipe. The ALPHA uses only one top-mounted stainless steel bolt making it easier to install, which saves time and money.
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Not since the butterfly valve was introduced has a product had as much impact on the waterworks industry as the Resilient Seated Gate Valve. Now we have taken a great product and made it even better through the process of value engineering. The Model AFC-2500 Ductile Iron Gate Valve incorporates the proven features of our cast iron valves and adds all the advantages inherent in ductile iron construction — greater strength, higher pressure rating, increased safety factor, greater durability and lighter weight. The AFC-2500 Ductile Iron Gate Valve is easier to work with during construction due to its lighter weight yet it possesses far greater strength than cast iron valves to resist abuse both during installation and in service.
- Delrin thrust bearings above and below the thrust collar reduce friction and minimize operating torques.
- Two “O”-ring seals are replaceable with the valve fully open and subjected to full-rated working pressure.
- Electro-Plated nuts and bolts provide long-life corrosion protection. Stainless Steel nuts and bolts are available upon request.
- Long, trouble free life with high strength, non-corrosive bronze stem and stem nut.
The QuikValve™ Insertion Valve is perfect when you are under pressure to install a valve in an operating line. It can be used in water lines with up to 150 PSI ambient pressure. Installed valves in 4" thru 8" sizes have the same number of turns to open as any other comparable size valve in your system using modern compression gate technology.
- Tight closing assured - since clapper arm shaft is set slightly back of vertical seat face.
- Bronze bushed ductile or cast iron clapper arm - for added strength and impact resistance.
- Stainless steel clapper arm shaft - can be extended through body when lever with weight or spring is required.
- Removal of clapper arm - assembly with disc can be removed through bonnet opening.
NRS (non rising stem) valves are Resilient Wedge style. Bodies range in sizes 2" thru 24" in ductile iron construction, rated at 250 psi working pressure for AWWA valves. NRS valves are typically used for municipal water systems, fire protection systems and wastewater applications. 2" square nut or wheel handle operators are furnished with valves.
OS&Y (outside stem and yoke) Resilient Wedge Valves are approved at 250 psi for DI. Generally used in pumping stations and fire protection systems where visual indication is required to determine if the valve is open or closed, the OS&Y gate valve is furnished with wheel handle operators
Indicator Posts are used to actuate and indicate the opened or closed status of buried gate valves. Indicator Posts are typi-cally used in areas where water flow is critical and the status of the valve must be known (such as fire protection lines).
Only open left Indicator Posts are listed by Underwrit- ers’ Laboratories, Inc. (UL) and approved by Factory Mutual Research (FM).
High density polyethylene pipe (HDPE) has several properties that make it very different from “traditional” water works pipe materials:
- Coefficient of thermal expansion is over 10 times that of DI and steel and 3 times that of PVC. In practical terms, this means HDPE pipe shrinks 10 times as much as DI and 3 times as much as PVC when it gets cold. This can loosen any fittings installed on it. Also, its length shrinks 1 inch per 100 feet of pipe length with a 10° F temperature drop, making it likely to pull out of unrestrained couplings.
- Yield strength of HDPE is approximately 1⁄50 that of DI or steel and 1⁄5 that of PVC.
- Modulus of Elasticity of HDPE is much lower than other pipe materials, which means it is not as rigid.
- Shells: 304 stainless steel MIG welded, fully passivated
- Lugs: 304 stainless steel
- Bolts, Nuts, and Washers: Teflon coated, NC rolled threads, plastic lubricating washer
- Gaskets: Virgin SBR compounded for water service
- Flange: Ductile Iron meeting ASTM 536-80, Grade 65-45-12 welded to neck, coated gasket glued
The FTS and FTSC Fabricated Tapping Sleeves are used to make a branch outlet from a main supply line on Ductile Iron, Cast Iron and Asbestos-Cement pipes, (the FTS can be ordered for use on PVC and Steel pipes). The FTS is furnished with shopcoat paint and high strength, low alloy steel trackhead bolts. The FTSC is furnished with approximately12 mils of fusion-applied epoxy and stainless steel nuts and bolts for areas where greater cor-rosion protection is required. The unique sealing gasket eliminates the need for a groove in the sleeve, making the shell “full-strength”.
All butterfly valves shall be of the tight-closing, rubberseat type, conforming to the design standards of ANSI/AWWA C504 latest revision, except where noted herein. Valves shall be bubble-tight at the rated pressure in either direction and shall be suitable for throttling service and/or operation after long periods of inactivity. Manufacturer shall be ISO 9001 Certified and have manufactured tight closing, rubber-seat type butterfly valves for a period of at least five (5) years. All butterfly valves shall be from the same manufacturer
Plug valves are designed for throttling and open/close operation. The valves handle stringy slurries, abrasive liquids, fluids with heavy suspended solids and wastewater sludges, without concern for clogging.
- Water treatment
- Wastewater treatment
- Chemical processing
- Pulp and Paper manufacturing
- Cement manufacturing
- Industrial water handling
Air Release Valves are used to automatically vent the air that can become trapped in any pipeline conveying fluid. They should be placed at strategic high points along the pipeline, where trapped air can accumulate. Purging air from the pipeline is important because trapped air significantly reduces pump and/or pipeline efficiency and life. The opening in the outlet of the air valve should be sized to adequately release the projected amount of air build up. Air Release Valves should be installed with an isolation valve to facilitate removal from the pipeline (should the valve fail or require maintenance) without having to shut the pipeline down.
Air & Vacuum Valves, like Air Release Valves automatically vent trapped air from the pipeline. They also allow large amounts of air to reenter the line in the event of a rapid, large scale fluid discharge (such as a major break in the line or rapid discharge thru the use of hydrants). The Air & Vacuum Valve prevents a vacuum from occurring by using a large orifice in the top of the valve to let an adequate amount of air to enter the pipeline.
Air Release and Air & Vacuum Valves for pressurized sewer applications serve the same purpose and operate the same way as pressurized water Air Release and Air & Vacuum Valves. The only difference is that the working components of the sewerage valves are removed from the liquid area by using a longer body and a stem on the float. This design difference prevents contamination and mechanical fouling due to solids entering the valve.
Automatic Control Valves that function off in-line pressure sensing have been used in varying forms for almost one hundred years.
The two main types of control valves are the diaphragm valve and the piston valve. The diaphragm valve is simpler in operation and contains fewer moving parts, making it easier and less costly to maintain. The same basic diaphragm valve (in either body style) can be manufactured to perform a wide variety of operations. The valve body will remain the same, with changes only to the auxiliary piping. A major advantage to this arrangement is that a valve that is performing one operation can be reconfigured to perform a completely different function without ever removing it from the system.
Valving has allowed man to regulate and control fluid flow for hundreds of years, but only in the last century has the design and manufacture of valves kept pace with the demands of the industry. The first such valve was the Double Disc Gate Valve which served the industry well for many years and is still being used in special applications.
The next breakthrough was the Butterfly Valve which has dominated the large diameter valve market because of its ease of operation. This was followed by the Resilient Wedge Gate Valve, a significant improvement over the double disc valve.
The latest development is the lightweight ductile iron Resilient Wedge Gate Valve which incorporates the superior sealing characteristics of the Resilient Wedge Valve and the proven strength and lighter weight of ductile iron. It is the valve of choice in sizes 2" to 30".
We have a continuing commitment to always be on the leading edge of our industry's technology. Accordingly, we were the first distributor to introduce this newest valve innovation to both our customers and engineers.
When you visit one of our locations you will notice our dedication to industry tradition, as well as our commitment to its future.