Orange County NC Website
DocuSign Envelope ID:81 E05E8E-EED7-43D3-8B8A-0811 OE72140A <br /> SECTION 33 34 00 - FORCE MAINS <br /> frames shall be suitable for traffic service. Minimum opening shall be 22" in diameter; <br /> minimum weight of cover shall be 120 lbs.; and minimum weight of frame shall be 230 <br /> lbs. <br /> C. Special frames and covers shall be provided for sealing manholes water tight at location <br /> shown on the Plans. These frames and covers shall conform to the above specifications <br /> and shall be provided with a one piece rubber gasket seated into the manhole frame. <br /> Covers shall be secured with 4 minimum '/2' lug bolts. Such frames and covers shall be <br /> manufactured by Neenah Foundry, Dewey Brothers, Inc., or equal. <br /> 2.22 AIR RELEASE VALVES <br /> A. Air release valves shall be the long stem and body type designed to keep the valve <br /> operating mechanism as free from contract with the sewage as possible. Valves shall <br /> have 2" threaded inlet, with 1" blow off connection with 1" blow off valve (gate valve), '/2" <br /> back flushing attachments with '/2' outlet. Outlet and back flushing connections shall be <br /> quick couplings. Valve shall have a minimum of/" diameter orifice. <br /> B. Valve body shall be cast iron; mechanism and seat, bronze; lever pins, stainless steel; <br /> and float, stainless steel. Valves shall be suitable for 150 psi working pressure. Valves <br /> shall be as manufactured by the Multiplex Manufacturing Company, the Valve and Primer <br /> Company, Val-Matic Manufacturing Corporation, or equal. <br /> 2.23 AIR AND VACUUM SEWER VALVES <br /> A. Air and vacuum sewer valves shall be the long stem and body type designed to keep the <br /> valve operating mechanism as free from contact with the sewage as possible. Valves <br /> shall have 2" threaded inlet; 1" blow off connection with 1" blow off valve (gate valve); <br /> and _" back flushing attachments with outlet. Outlet and back flushing connections <br /> shall be quick couplings. Valve shall have a minimum of 1" diameter orifice. <br /> B. Valve body shall be cast iron. Valve and float shall be stainless steel. Valves shall be <br /> suitable for 150 psi working pressure. Valves shall be as manufactured by the Multiplex <br /> Manufacturing Company, the Valve and Primer Company, Val-Matic Manufacturing <br /> Corporation, or equal. <br /> 2.24 STEEL ENCASEMENT PIPE <br /> Steel encasement pipe shall bituminous coated inside and outside. Bituminous coating shall be 6 <br /> mil. minimum thickness. Steel encasement pipe shall have a minimum thickness as indicated in <br /> the plans for bores under highways and shall meet ASTM Specifications A252 with a minimum <br /> yield strength of 35,000 psi. <br /> PART 3 - MATERIAL TESTING <br /> Material shall be tested in accordance with the General Conditions of these Specifications and the <br /> following: <br /> 3.1 PIPE <br /> A. Each joint of pipe shall be subjected to and successfully meet hydrostatic proof test in <br /> accordance with ANSI requirements for each type. Cast iron pipe shall be tested prior to <br /> lining. Certified test results shall be furnished to the Engineer, for each shipment of pipe. <br /> B. PVC pipe shall be given the Quick Burst Test in accordance with ASTM D1599; <br /> Sustained Pressure Test in accordance with ASTM D1598; Acetone Immersion Test in <br /> Orange County DAA PN R00592-225N2 <br /> Walnut Grove Wastewater System January, 2021 <br /> 33 34 00-8 <br />