The Office of Parks, Recreation and Historic Preservation (OPRHP) is seeking quotes for a new grit washer. A system is needed to do the separation and removal of sand and grit from our wastewater treatments plants. The system will be fully operational in both manual and automatic modes. The following specifications are required for this RFQ. Please submit your spec sheet along with the completed RFQ.
Grit Washer:
Influent: Municipal Waste
Application Peak Flow: 152,640 GPD
Inlet Flange: 6”
Outlet Flange: 8”
Screw Incline 25°
Screw Type: Shaftless
Screw Diameter: 9”
Screw Length: 13’ 2”
Trough Diameter: 9.5”
Trough Type: U trough
Inspection Covers: Bolted to Trough
Liner: 1/3” stainless steel liner bars
Shaft, Paddles, Body: Stainless Steel 304L
Drive: ½ hp, 460v, 3 phase 60 Hz C1D2
Control Panel:
Control panel will operate the grit classifier, auger, and all ancillary equipment. Control panel
will be a stainless-steel enclosure, and will
contain all electrical controls, wires, starters, terminals, relays, overloads, fuses and labels
required for operation of the grit classifier and ancillary equipment. The system will be fully
operational in both manual and automatic modes.
1. Provide complete panel assembly, wiring, and testing services.
2. Stainless Steel Enclosure
3. Inner Swing Panel for HMI, Pilots, and Disconnect
4. Non-Fused disconnect switch with thru the door handle
5. Motor Starters with fusing and overloads
6. Control transformer with fusing
7. 1 lot terminal blocks and related accessories
8. Electronic Over Current Relays
9. Elapsed time meter
10. Lot, control relays, terminal blocks and related accessories
11. C1D2 local E-Stop switch
12. UL 508 rated enclosure suitable for wall mounting
13. Dry contact outputs for Run, General Fault, Over Current
E-Stop:
A push button E-stop will be provided for installation adjacent to the grit system. E-Stop will
be Class 1, Div 2.
Start-Up Services and Training
Full documented QC with photos provided to customers
Detailed video specific to this application showing equipment and controls functions and
operation
Full startup and training on site for 1-2 days
Warranty
12 months or 18 months from delivery, whichever comes first.
Business enterprises awarded an identical or substantially similar procurement contract within the past five years:
NONE.