SU0014609 - Laserfiche WebLink

Home Browse Search

SPECIFICATIONS FOR SEWAGE LIFT STATION - (Con't) SUMP PUMP i There shall be installed in the sump well a submersible sump pump with 1/3 HP motor mounted directly above the impeller. It shall have a min- imum capacity of 780 G.P.H . at 20' T.D.H . The pump shall be controlled by a float switch. The sump discharge line shall be connected from sump well to the wet well. It shall discharge back into the wet well through a I!,." schedule 40 steel pipe with two check valves and a gate valve within the pump chamber. EQUIPMENT CHAMBER It shall be a vertical cylinder with sidewalls of 14" steel rolled to have an inside diameter of 7'. The clear inside height shall be 8' . The top and bottom of the chamber shall be 3/8" flanged plate. The bottom shall be reinforced by 8" 1 beams 18.4# extending 1' outside the chamber diameter both directions. The top shall be reinforced by 8" channels 13.75# in both directions to support over burden or if necessary these sections should further be reinforced by a more heavier section. ENTRANCE TUBE The entrance tube with access ladder and cover shall be a vertical cylinder constructed of 14" steel place with an inside diameter of 36". It shall be stiffened at the top by z" x 3" bar and at the bottom by a 2" x 2" x 1411 angle. This angle should rest on a 21" x 214" x 14" angle welded to the top on the pump chamber. DUPLEX PUMP CONTROL A NEMA Type I or approved equivalent, with dead front enclosure fabricated of steel shall house all control equipment. The high voltage section of the panel including all circuit breakers and motor starters shall have a remov- able cover with 14 turn latching devices. Circuit breakers, motor starters, reset buttons and pump control H .O.A. switches will be surface mounted for accessible operation without opening the high voltage panel. The low voltage and pneumatic pump control section shall be enclosed in a hinged section of the panel and isolated from the high voltage section. All pneumatic control equipment sl--1 P. 99W.letetly adjustable from exterior of panel . All low voltage cont ,ol wiring and pneumaWit. 0 ha ac i le by a hinged drop shelf c yering the control sectron. yA1,g',ou cl ht. t nvenience out- let shall be provided for operation of-•1'45 volt A.d. d shall be protected by a 15 AMP breaker.-, r,.)7a _ rBY:. i4Y'ia Public Agancy ...................... Owner ............ .................................. Engineer ..................................................,...,.... .....,........... ..................... Architect ............. ...................... ..... ..........t..,.,.........t. Oth Y ..... . • u•'�• �• •uy��Y�Ve.M.u.c�e..ne�l