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HD Fowler Company Submittal-Bid Item#27 <br /> RECOMMENDED SPECIFICATIONS <br /> FOR C-515 RESILIENT <br /> WEDGE GATE VALVES <br /> KENNEDY VALVE <br /> RESILIENT SEATED GATE VALVE 4"-24" <br /> C-515 <br /> 1. Valves shall conform to the latest version of AWWA Standard C-515 covering Resilient <br /> Seated gate Valves for Water Supply Service. <br /> 2. The valves shall have a ductile iron body and bonnet.The wedge shall be totally encap- <br /> sulated with rubber. <br /> 3. The sealing rubber shall be permanently bonded to the wedge to meet ASTM tests for <br /> rubber metal bond ATSM D249. <br /> 4. Valves shall be supplied with 0-Ring seals at all joints. No flat gaskets shall be allowed. <br /> 5. The valves shall be either non-rising or rising stem,opening by turning left to right,and <br /> provided with 2"square operating nut or a handwheel with the"Open"and an arrow cast <br /> in the metal to indicate the direction to open. <br /> 6. Stems for NRS assemblies shall be cast bronze with integral collars in full compliance <br /> with AWWA.OS&Y(rising stems)shall be of bronze.All stems shall operate with bronze <br /> stem nuts,independent of stem(in NRS valves).NRS stems shall have(2)0-Rings located <br /> above thrust collar and (1)0-Ring below.All stem 0-Rings shall be replaceable with valve <br /> fully opened and subjected to full pressure.The NRS stems shall also have(2)low torque <br /> thrust bearings located above and below stem collar to reduce friction during operation. <br /> 7. Waterway shall be smooth, unobstructed and free of all pockets,cavities and depres- <br /> sions in the seat area.Valves shall accept a full size tapping cutter. <br /> 8. The body, bonnet and stuffing plate shall be coated with fusion bonded epoxy,both inte- <br /> rior and exterior on body and bonnet. Epoxy shall be applied in accordance with AWWA <br /> C550 and be NSF 61 certified*(2"-12"certified to NSF 61-G). PIV plates shall be painted black. <br /> 9. Each valve shall have a maker's name, pressure rating,and year in which it was manu- <br /> factured cast in the body.Prior to shipment from the factory,each valve shall be tested <br /> by hydrostatic pressure equal to requirements of AWWA. <br /> 10. Valves shall have all brass components cast and assembled in the USA and shall be <br /> manufactured by Kennedy Valve Company or equal. <br /> Certified to NSF/ANSI 61 Annex G(low lead compliance<=.25%Pb) <br /> Updated 01/31/13 <br /> 8-2 Kennedy Valve/RSGV Submittal Sheets <br />