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Section RAIL SYSTEMS Page 501 Specifications — VIM METAL-TO-METAL - GUIDE RAIL STATION GENERAL Contractor shall furnish all labor, materials, equipment and incidentals required to provide a complete pumping system as specified herein. The MTM Rail System shall include (Qty.) submersible solids handling sewage pump(s),discharge base elbow, sealing flange with rail guide, upper guide bracket, lifting chain or cable, access frame and hatch cover, float mounting bracket, control equipment,guide rails(2"galvanized or stainless steel pipe)and discharge piping. DISCHARGE BASE ELBOW A discharge base elbow,designed to mount directly on the sump floor, shall be supplied for each pump. It shall have a standard 125 pound flange faced and drilled on the outlet side,with a machined mating inlet connection.The design shall be such that the pump to discharge connection is made without the need for any nuts,bolts or gaskets.The base elbow shall also anchor and align the two,2" guide rails.The elbow shall be painted with waterborne hybrid acrylic/alkyd paint.This custom engineered,quick dry paint shall provide superior levels of corrosion and chemical protection. SEALING FLANGE WITH RAIL GUIDE A sealing flange/rail guide bracket shall be mounted on each pump discharge.It shall have a machined mating flange which matches the base elbow discharge connection.Sealing of this discharge connection shall be accomplished by a simple linear downward motion of the pump culminating with the entire weight of the pumping unit supported entirely by the base elbow. UPPER GUIDE BRACKET The upper guide bracket shall align and support the two guide rails at the top of the sump.It shall bolt directly to the hatch frame and incorporate an expandable rubber grommet for secure rail installation. LIFTING CHAIN/CABLE Each pumping unit shall be provided with a lifting chain or cable,and be of sufficient length to extend from the pump to the top of the wet-well.The access frame shall provide a hook to attach the chain or cable when not in use.The lifting chain or cable shall be sized according to the pump weight. ACCESS FRAME AND DOOR A separate access frame assembly shall be supplied with a separate hinged door for removal of each pump.The frame assembly and door shall be aluminum with 300 series stainless steel hinges and hardware.The aluminum door shall be raised tread plate to provide a skid- proof surface.As a safety precaution,each pump shall be provided with a separate door so as to limit access to the wet-well.The frame shall support the float mounting bracket.A recessed handle shall be provided with each door,as well as a safety latch to hold the door in an open position. FLOAT MOUNTING BRACKET A float mounting bracket shall be provided with strain reliefs that support and hold the level control cords.Continuous cords are to run from pumps) and level controls to a control panel or junction box. No splices shall be made in the wiring. The bracket shall be fabricated from steel, coated for corrosion resistance, and attached to the access frame with 300 series stainless steel fasteners. A dielectric spacer should be installed when bolting to an aluminum access frame. 411 PENTAIR HYDROMATIC' October ©2014 Pentair Ltd.