2.4 | LEACHATE SUMP PUMP CARRIAGE
A.
Pump carriages shall be integral part of the pump assembly provided by the
pump manufacturer.
Carriage shall be constructed of type 304 stainless steel. Furnish a total of
three carriages; a carriage shall be designed for use with each of the leachate
pumps specified, but not the stormwater pump.
Carriages for all pumps shall be equipped with cable lug. Lug shall be welded
to outside bottom surface of carriage, and shall not interfere with movement of
the carriage. Lug may be welded to the carriage in the field.
Carriages for all pumps shall be equipped with low-profile pressure transducer
bracket. Bracket shall be welded to the outside surface of the carriage as low
as possible without interfering with the movement of the carriage or damaging
the inside surface of the HDPE riser. Bracket may be welded to the carriage in
the field.
Carriage wheels shall be constructed of Teflon and angled to match the inside
diameter of the sump riser pipe.
2.5 | LEACHATE PUMP DISCHARGE PIPE, VALVES, AND ACCESSORIES
A.
Unless otherwise noted, the discharge pipe shall be polyethylene, ASTM
D1248, ASTM D2737, 160 psi pressure rating.
Discharge pipe connectors shall be AWWA C-800, Buna-N gasket, “T”
Compression style with stainless steel beveled gripper ring and split clamp,
size to match discharge pipe. A metal insert shall be used inside the end of the
discharge pipe.
Hoist cable shall be 3, -inch diameter stainless steel wire rope.
Cable clamps, couplings, lock nuts, washers, and eye bolts shall be stainless
steel.
PART 3 - EXECUTION
3.1. INSTALLATION OF LEACHATE PUMPS
A.
B.
Secure each leachate pump to pump carriage.
Remove check valve assembly from pump. Drill four evenly spaced %4-inch
diameter holes in check valve disk. Remove burrs, and replace check valve
assembly in pump.
File No. 3066.09 Pumps 11318- 3 of 4 December 2017
