The RainEx Rainwater Recovery System shall be designed to collect rainwater in (2) 30,000 gallon storage tank (supplied by others). Water will be re-pressurized from the collection tank to the points of use by (2) booster pumps. The booster pumps will pump through bag filters and a 254nm UV for sanitization on the reclaim water skid. When not feeding the points of use, the pumps will recirculate to the storage tank to keep the water sanitized. Water for flushing fixtures will also be injected with dye. A 55-gallon molded HDPE tank is included with a solenoid driven meter pump to inject dye into the liquid whenever the feed pumps are discharging into the distribution piping. This Rainwater Recovery System shall be controlled via a common PLC driven control panel with touch screen operator interface.
The system shall be a RainEx 15000 series
2.0 EQUIPMENT DESCRIPTION
4-20mA output, NEMA 4X
One for the collection tank and one for the polishing/storage tank
Duplex Basket Strainer
Provided for sump pump discharge
Pressure gauge to indicate strainer cleaning
Sized for 55 gpm
Multi-stage booster pump, T304SS stainless steel/Viton wetted parts
Max. fluid temperature of 180 degrees F
Three phase motor, TEFC 2 HP
Designed for min. 55 gpm @ 75 TDH
Common adjustable pressure switch on output and suction, NEMA 4X, 0-100 psi adjustable
Welded steel construction ASTM rated with bladder
Max. working pressure of 125 psig
Automated flow control valve for control of proper water flow to cooling towers, flushing fixture and storage tank recirculation.
PVC/Viton wetted parts
Pneumatic actuator with flow positioner and feedback control.
Flow paddle wheels sensors for flow control valves control.
PP/Viton wetted parts
Flow range 0.3 to 6 m/s
PVC installation tee
Automated Valve for feed to flushing fixture bladder tank recirculation
PVC/Viton wetted parts
3-Way, true-union ball valve
Pneumatic actuator with limit switch feedback
Double-L port ball
Bag Filter (50 micron)
T304SS construction, sized for #1 filter bag
Swing bolt lid closure
55 gpm flow through capacity
Recirculation pump output
T304SS UV chamber with 254 nm wavelength bulbs. Sized for 55 gpm minimum @ 50% bulb capacity with 186,000 uW/cm2 dosage. Aqua-Azul brand. Includes automatic wiper system.
Plumbing and valves to be sch.80 PVC with Viton seals where applicable. Asahi brand.
55 gallon dye tank. 22” diam. x 36” deep with bolt-down cover and off/on metering pump. Pump is Pulsatron E-Plus series, PVC/Ceramic/Teflon wetted parts, 5gph max. Tank also includes BPE #LSF-130-S low level float switch.
Central system control panel containing the following:
Flange mounted disconnect switch
Motor protectors for recirculation and sump pumps
Allen Bradley Micrologix 1400 processor with required analog input/out as well as discrete inputs/outputs.
Allen Bradley Panel View +1000 HMI
Allen Bradley Stratix 6000 Ethernet Switch
E-Stop with E-stop relay
Long life, low voltage LED indicator lights.
NEMA 4 electrical rating
UL panel labeled
Adjustable alarm horn with silence button
All required controls and accessories for complete system operation
Rainwater Recovery System components other than collection water level transmitter and collection tanks to be factory mounted and plumbed on common epoxy coated carbon steel skid.
Electrical conduit shall be rigid galvanized steel. Final connections to devices will be flexible conduit.
Two days of site assistance to cover start-up and training is included.
3.0 DOCUMENTATION AND OPERATING MANUALS
The equipment supplier shall furnish the following with the system, in duplicate. All documents and prints described below will be contained in the system operating manuals.
Plumbing process and instrumentation diagram (P&ID).
Electrical ladder diagrams for control panel, in accordance with accepted practices.
Complete bill of materials, including system sub components along with major components
Cross-reference between each print and the bill of materials, providing references to system components.
Operating and maintenance manuals containing descriptive information on the operation of the system, operating and troubleshooting information, spare parts, specification sheets and manufacturer’s cut sheets and service manuals.
Complete ladder and logic diagram (program) loaded into PLC
4.0 EQUIPMENT WARRANTY
The equipment shall be warrantied for defects in workmanship for a period of 12 months from the date of startup, or 18 months from the date of delivery, whichever occurs first.
The Direct Storage Rainwater Harvesting Systems shall be designed to collect rainwater in an outside storage tank (supplied by others). Water will be re-pressurized from the collection tank to the points of use by (2) sump pumps through the initial strainer filtration to the interior storage tank. Water will then be recirculated in this tank for chlorination and disinfection. The booster pump pack will then pump through bag filters and the water will be injected with dye. When not feeding the points of use, the recirculation pump will recirculate the interior storage tank to keep the water sanitized. The system shall be controlled via a common PLC driven control panel with touch screen operator interface.Read More
The Cistern Storage Rainwater Purification Systems include filtration and sanitization equipment and controls to filter 56,000 gallon rainwater cistern. It shall be factory skid-mounted including modularization and pre-plumbing and wiring...Read More
The Direct Storage Rainwater Recycling Systems for University shall be designed to collect rainwater in a 4,000 gallon storage tank. Collected water will re-pressurized via one of two pumps to output water at a rate of 35 gpm @ 40psi to the irrigation system. When not feeding the irrigation system, one of the pumps shall recirculate the holding tank through a bank of bag filters and a 254 nm UV for sanitization. The pumps will automatically alternate with each cycle. The system shall be controlled via a common PLC driven control panel with touch screen operator interface.Read More