CC PACKET 08111987 - Laserfiche WebLink

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FUND MORE. REIADILY 011"FAINE,11) frame 1.1111 Ilpoll which the Timilliole Cover rests. lr:\act Environmental Proicclion Auencv RcLUIA11011 P.L. field Illeasurcilicills forexistill'-, 1111111hole I'l-milcN WIII he 921-500 requires that the FPA Administrator shall not required d in from the purchaser prior to the approve anv un-ant for treatment work akcrJuiv 1. 1973. prOdLIC11011 of the IIIS.Cll., SpCCIal illStRIC6011S will -he unless the 'applicant ShOWS, to the adillinisirator.s I.lladC aValkll)IC to the I)CII-CILISCr and/or CIl-'IIl&I_ for ItIsfAction.that the ColiectiOn SVSleill Undcl-collsidCra- proper Ilicasurcillcilts. ,on does not have excessive Infiltration or lifflo.w. 4.0 INSTALLXHON Standard Manhole IILIS permit Sl�gIIII)Callt stol'Illwatel, 4.1 entry Into the system. and I'lially C0111111111111IC, idCIl1IfV The manhole franic shall be cleaned of all dirtildebris the openings in manhole lids as the point of excess before placing the SEWER GUARD upon the nill. inflow. 41.2 An effective complement to the manhole cover. The SEWER GUARD Watertiulit Manhole Insert lip SENYER GUARD prohibits excessive Inflow. satisfies with gasket shall he placed in contact with 360' of' the requirements of this' EPA regulation. and CIlC0UI_- ages approval.al ofthe gram. manhole frame rim to retard water seepage between the Insert and frame 6111. 5.0 TESTING MODEL SPECIFICATIONS FOR 5..1 - ' -t* SEWER GUARD: After installation of the SE\VER GUARD \Vaiei ight Manhole Insert. the seal and valves shall be water tested 1.0 SCOPE and shall not allow more than I Lallon ol'inflow dul-11112 a Under this item. the contractor shall furnish to the period of 24 hours. manufacturer's recommendations SEWER GUARD Watertight Manhole Inserts as called for in the MEASURING PROCEDURE FOR specifications. SEWER GUARD: 2.0 MATERIAL AND DESIGN 2.1 General —OD The SEWER GUARD Watertwlit Manhole Insert and B each of Its components. the valve bodies. the valve plugs. the valve springs and the gasket shall be —A manufactured of'plastic. stainless steel. or other corro- sion proof material. 2.2 The Insert Qhe SEWER GUARD \Vatertwht Manhole Insert shall e manufactured of High Density Ethylene Hexene-1 Copolymer equal to Phillips Chemical Company Mar- ID- lex HHM-5502. meeting the requirements of ASTM ID—Inside Frame Diameter(Clear Openm2) D1248 Class A. Category 5. The finish thickness may OD—Outside Frame Diameter vary from ''/t,"to ''fhe Insert shall be manufactured to A—Drop Ring Diameter the dimensions as shown on the contract drawings to B—Drop Rm�, Depth (From Underside Cover) allow easy installation within the manhole frame. I — Remove the manhole cover. 2.3 The Gasket 2 — Clean the manhole rim or flanLe of any dirt or The Gasket shall be manufactured of' closed cell I radiation crosslinked polyethylene foam and meet the debris. to insure accurate measurement. 3—Locate the CLEAR OPENING of the manhole rim. requirements of ASTM b-395. D-1564.- D-624. and This is the INSIDE DIAMETER measurement .D.).' D-1667..The gasket shall be heat welded to the insert. N C shown above. 2.4 The Relief'Valves(2) 4 Take two or three readings along the I.D.. The gas relief valve and the vacuum relief valve shall be designed to release at a pressure differential equivalent circumference and record the smallest measurement to the nearest eighth of an inch. to approximately V2 psi and approximately 2.25 psi 5 —Locate the outer edge of the manhole rim. This is respectively. The valve body shall be manufactured of the OUTSIDE DIAMETER measurement (O.D.).. specially formulated plastic polymers and the valve shown above. The O.D. measurement and the bottom of plug shall be neoprene confined within a stainless steel the manhole cover will have the same dimensions. - spring. 6 — Take two or three readings along the O.D. 2.5 Depth,of Bowl (VALVES) circumference and record the smallest measurement to The depth of the insert shall be such that the manhole the nearest eighth ol'an inch. cover does not come in contact with the valves when 7 — Provide dimensions & B on cover as above. -flipped during removal or replacement. Please indicate the spcclific. type of'manhole frame and 3.0 MEASUREMENT Cover that vou have i.e. standard (heavy or light duty). `17hc.SEWER GUARD Watertight Manhole Insert shall locking'. bolt-down; watertight,. etc., along with the 16c manufactured and finished to fit upon the manhole name of the FoundryAnclude a drawing if'possible.