Orange County NC Website
DocuSign Envelope ID:81 E05E8E-EED7-43D3-8B8A-0811 OE72140A <br /> SECTION 33 34 00 - FORCE MAINS <br /> 2.7 JOINT MATERIAL <br /> A. Gaskets for pipe and fittings shall be continuous ring of rubber material compounded to <br /> resist deterioration and of a texture to assure a permanent and watertight seal. They <br /> shall have smooth surfaces, free from pitting, blisters, porosity or any other defects. <br /> Gaskets shall conform to the requirements of AWWA Specification C301 and Federal <br /> Specification WW-P-421 b. <br /> B. Gasket lubricant shall be a potable hydrogenated vegetable oil, insoluble in cold water, <br /> non-toxic and shall not support the growth of bacteria. It shall contain no deleterious <br /> ingredients and shall have no deteriorating effects on the gaskets. The lubricant shall be <br /> semi-paste, easily applicable, readily adherent to the inside of the bell and shall remain in <br /> a usable state throughout the range of temperature in which pipe is normally installed. <br /> Lubricant shall be delivered to the job site in unopened containers bearing the <br /> manufacturer's name and trade name or trademark. <br /> 2.8 RESTRAINED JOINT PIPE AND FITTINGS <br /> Restrained joint pipe and fittings shall be ductile iron manufactured in accordance with AWWA <br /> C151 and C153. The restraining method shall be by a snap in place flexing restraining ring at the <br /> joint. The pipe and fittings shall be American Flex-Ring, Griffin Snap-Lok, US, T.R. Flex, or <br /> equal. <br /> 2.9 BALL AND SOCKET JOINT PIPE <br /> Ball and socket joint pipe shall be ductile iron manufactured in accordance with AWWA C151 and <br /> C110. The ball and socket shall be boltless, flexible joint with a locking retainer gland. <br /> 2.10 GATE VALVES <br /> A. Gate valves, larger than 2" shall be iron body, resilient seat non-rising stem and provided <br /> with suitable stem seals. They shall comply with AWWA C-509, designed for a minimum <br /> operating pressure of 150 psi. <br /> B. Gate valves 2" and smaller shall be standard all brass valves with inside screw, rising <br /> stem and handwheel operator, suitable for 125 psi. <br /> 2.11 PLUG VALVES <br /> A. Plug valves shall be of the non-lubricated, eccentric type with resilient faced plugs, with <br /> flanged ends for installation within structures and mechanical joint ends for buried <br /> service. Port areas shall be at least 80% of full pipe area for pipes 6" to 16" in diameter <br /> and 70% of full pipe area for valves larger than 16" diameter. Valves smaller than 6" in <br /> diameter shall have 100% full pipe area. Bodies shall be semi-steel, gray cast iron, or <br /> ductile iron. Seats in 3" and larger valves shall have a welded in overlay of not less than <br /> 90% pure nickel on all surfaces containing the plug face. Valves shall have stainless <br /> steel permanently lubricated upper and lower plug stem bushings. All 4" and larger <br /> valves shall be of the bolted bonnet design. All nuts, bolts, springs, and washers shall be <br /> cadmium plated. <br /> B. Plug valves 4" and smaller for non-buried service shall be equipped with (true) manual <br /> gear type operators with position indicators. Plug valves 6" and larger for non-buried <br /> service and all sizes for buried services shall be equipped with manual gear actuators. <br /> All gearing shall be enclosed, submersible with seals provided on all shafts to prevent <br /> entry of water into actuator. All shaft bearing shall be furnished with permanently <br /> lubricated bronze bearing bushings. Actuators of nonburied service shall clearly indicate <br /> Orange County DAA PN R00592-225N2 <br /> Walnut Grove Wastewater System January, 2021 <br /> 33 34 00-5 <br />