Gauge shall be bottom outlet, flush mounted style, with %-inch NPT stainless
steel connection. Pressure range shall be 0 to 100 pounds per square inch
gauge (psig).
Provide each pressure gauge with a plug type, isolation valve as indicated on
the Drawings to allow removal of the gauge under operating pressure.
2.3. LEVELSWITCH AND HOLDER
A.
B.
H.
I.
The level switch shall be float type, with reed switch.
Level switch shall indicate discrete fluid level by buoyancy of the float, which
closes the reed switch. Switch shall be installed in normally open position.
Each level switch assembly shall include a single reed switch and single float.
Switch location shall be as indicated on the Drawings.
Float diameter shall be 2 inches. Float shall be buoyant in liquids of specific
gravity greater than 0.70.
Float and guide tube shall be 316 stainless steel.
Extension pipe and fittings shall be stainless steel. Dimensions shall be as
indicated on the Drawings.
Float switch installed inside the Sump Riser Building shall be intrinsically safe.
Circuit shall be rendered intrinsically safe by Zener Barrier in the control
panel.
Support bracket shall be galvanized steel or stainless steel.
Acceptable Manufacturer - Madison M5600-PR or approved equal.
2.4 FLOW METERS
A.
B.
Flow meters shall be as specified on the Drawings.
Acceptable manufacturers — Sparling Instruments, Inc., or approved equal.
2.5 LEVEL TRANSMITTERS
A.
Level transmitters for leachate sump and leachate structures shall be
submersible piezoresistive pressure sensing type, with Type 316 stainless
steel construction, welded stainless steel diaphragm, 24VDC excitation, 2-wire
4-20mA output, and integral sealed signal cable with vent tube.
File No. 3066.09 Instrumentation and Controls 16500 - 2 of 5 Revised January 2019
