DEIONIZER / CUSTOMER:
DATE:
1.0 SCOPE
1.1 Provide as indicated a vertical pressure type deionization system complete with pressure vessels and deionizing resin. The system will be of an approved design as fabricated by a manufacturer regularly engaged in the production of water treatment equipment. All equipment and material will be supplied in compliance with the specifications as intended for a complete and operational system.
¨ (Open Bidding Arrangement)
1.2 Qualified manufacturers of water treatment equipment of the type specified are Culligan International Company or the Engineer’s approved equal.
¨ (Closed Bidding Arrangement)
1.2 Qualified manufacturers of deionization equipment must be engaged in the manufacture of this equipment for a period of not less than fifteen (15) years. Acceptable manufacturers are Culligan International Company or the Engineer’s approved equal.
2.0 GENERAL DESCRIPTION
¨ (Selection for statement of specific model)
2.1 The system specifications are based on Culligan International Portable Exchange
¨ Weak Base deionization system.
¨ Strong Base deionization system.
¨ Mixed-Bed deionization system.
¨ Strong Base with Mixed-Bed polisher deionization system.
¨ Carboxylic deionization system.
The purpose of the Culligan International Portable Exchange deionizer will be to reduce the total dissolved solids from a known water supply so that the specific resistance of the water is not less than ______K ohmcm, when the system is operated at ______gpm and in accordance with the operating instructions. The system will be capable of supplying ______gallons of deionized water between regenerations based on the influent water analysis listed in Section 3.1 of this equipment specification.
The systems performance is rated at a design flow rate of ______gpm with a rated pressure drop of ______psi, and will be capable of a peak flow rate of ______gpm for sustained periods of _____ minutes with a pressure drop of ______psi.
There shall be a quantity of ______of the above-described systems.
¨ (Selection for general statement)
2.1 The system, in compliance with the equipment specification, is described as a portable exchange ______deionization system meeting the performance and design data requirements as hereinafter specified.
3.0 PERFORMANCE AND DESIGN DATA
3.1 INFLUENT WATER ANALYSIS
Calcium, Ca: Chloride, Cl:
Magnesium, Mg: Nitrate, N:
Sodium, Na: Sulfate, SO4:
Potassium, K: Bicarbonate, HCO3:
Strontium, Sr: Carbonate, CO3:
Barium, Ba: Fluoride, F:
(Constituents above are expressed in ppm or mg/l as CaCO3 or as otherwise specified.)
Silica, SiO2: TOC (total organic carbon):
Iron, Fe: Total Dissolved Solids, TDS:
Manganese, Mn:
(Constituents above are expressed in ppm or mg/l.)
Turbidity, NTU: Color: pH:
3.2 DESIGN PARAMETERS
Normal System Flow & Pressure Drop: gpm @ ______PSI
Daily Water Usage: gallons per day (gpd)
Daily Hours of Water Demand:
Operating Temperature Range: 45°–105°F
Operating Pressure Range (System): 10–75 PSI
Electrical Requirements: None (Voltage may be required for instrumentation)
System Dimension (L x W x H): ”L x ”W x ”H
3.3 EFFLUENT WATER QUALITY MG/L TDS as CaCO3
K OHM/CM
4.0 EQUIPMENT SPECIFICATIONS
4.1 DEIONIZER TANKS
Each system shall include _____ tank(s). There shall be ______banks of tanks in parallel with ______tanks in each bank.
¨ Cation Tank(s)
Each cation tank shall be _____ inches in diameter. The sideshell height shall be _____ inches.
¨ Anion Tanks(s)
Each anion tank shall be _____ inches in diameter. The sideshell height shall be _____ inches.
¨ Mixed-Bed/Polisher Tank(s)
Each mixed-bed tank shall be _____ inches in diameter. The sideshell height shall be _____ inches.
4.1.0 Tank Construction
¨ Tripl-Hull™
Tank(s) shall be electrical welded pressure vessel quality low carbon steel construction rated for 100 psig working pressure. Tank(s) will be of the Culligan Tripl-Hull™ construction.
¨ Fiberglass
Tank(s) shall be manufactured of blow molded ABS reinforced by a continuous roving glass filament overwrap. The tank bottom will be supported on a molded structural base.
¨ Dubl-Hull™ Galvanized
Tank(s) shall be electrical welded pressure vessel quality low carbon steel construction rated for 100 psig working pressure. Tank(s) will be of the Culligan Dubl-Hull™ construction.
¨ Stainless Steel
Tank(s) shall be electrical welded pressure vessel quality 316 stainless steel construction rated for 100 psig working pressure.
4.1.1 Access Openings
Each tank will be equipped with openings for mineral filling and periodic inspection.
4.1.2 Tank Finish – Exterior
¨ Tripl-Hull™
The tank exterior will be protected by a molded plastic jacket for corrosion resistance. The jacket will also act as an insulator to minimize condensation on the surface of the tank.
¨ Dubl-Hull™ Galvanized
Tank finish shall be zinc-hot dipped galvanized inside and out per ASTM standard A-123-89. Zinc-hot gavanized coating must be NSF approved.
4.1.3 Tank Finish – Interior
¨ Tripl-Hull™ and Dubl-Hull™ Galvanized
The tank interior will consist of a 20 mil thick vinyl bag liner, hermetically sealed within the steel tank to protect against internal corrosion.
4.2 INTERNAL DISTRIBUTION
4.2.1 The upper distribution system shall be of the single point distributor type, constructed of a fine slotted strainer to dispense water evenly over the resin bed.
4.2.2 The lower distribution system shall be of the single point distributor type, constructed of a fine slotted strainer to provide even flow distribution through the resin bed.
4.3 pipe and fittings
The tanks shall be connected via a <hose/header> distribution system with quick disconnect fittings.
4.4 EXCHANGE RESIN
¨ Cation Resin
The cation exchange resin shall be high capacity “standard mesh” of sulfonated polystyrene type stable over the entire pH range with good resistance to bead fracture from attrition or osmotic shock. Each cubic foot of cation resin will be capable of removing 36,600* grains as calcium carbonate when regenerated with 9 lbs. of HCl.
The system shall include _____ cubic feet of cation exchange resin per tank.
¨ Anion Resin
The anion exchange resin shall be a
¨ strongly basic gel (strong base units)
¨ macroporous weak base (weak base units)
type based on a styrene divinylbenzene matrix stable over the entire pH range with good resistance to bead fracture from attrition or osmotic shock. Each cubic foot of anion resin will be capable of removing <23,500*/23,000*> grains as calcium carbonate when regenerated with <8.0/4.0> lbs of NaOH.
The system shall include _____ cubic feet of <strong base/weak base> anion exchange resin per tank.
¨ Mixed-Bed Resin
The mixed-bed resin shall be high capacity consisting of a 2:1 by volume mixture of a Type II strong base anion exchange resin and a strong acid cation exchange resin. It shall be stable of the entire pH range with good resistance to bead fracture from attrition or osmotic shock. Each cubic foot of resin will be capable of removing 36,600* grains as calcium carbonate.
The system shall include _____ cubic feet of mixed-bed exchange resin per tank.
¨ Carboxylic Resin
The carboxylic resin shall be high capacity weakly acidic cation exchange resin based on an acrylic/divinylbenzene polymer stable over the entire pH range with good resistance to bead fracture from attrition or osmotic shock. Each cubic foot of carboxylic resin will be capable of removing 60,000* grains as calcium carbonate when regenerated with 6 lbs. of HCl.
The system shall include _____ cubic feet of carboxylic exchange resin per tank.
¨ All
All resins shall be solid, of the proper particle size, and will contain no agglomerates, shells, plates or other shapes that might interfere with the normal function of the deionizer. The resins shall be manufactured to comply with the food additive regulation 21 CFR 173.25 as set forth by the USFDA.
The system shall include a total of _____ cubic feet of resin for the system.
*Note: All resin capacities are based on new resin.
4.5 Accessories
(All Optional selections)
4.5.1 ¨ A quality indicator light, which will remain lit as long as the water quality is above the rating of the light.
4.5.2 ¨ A temperature-compensated resistivity cell and monitor which gives a direct reading of water quality on a continuous basis.
4.5.3 ¨ A temperature-compensated resistivity cell and controller which measures the water quality and will indicate and activate internal relay to send signal when water quality is no longer at the preset level.
4.5.4 ¨ A recirculation kit can be provided for the purpose of maintaining high quality water within the resin bed during periods of low use. The recirculation system will include a pump with sufficient capacity to recirculate water through the bed at not less than 2 gpm/ft2. The system will include an isolation valve, check valve, and diaphragm shut-off valve.
4.5.5 ¨ A safety shut-off valve to shut off the deionized water supply when water quality drops below preset level.
4.5.6 ¨ An alarm bell to signal that the quality of deionized water is below the preset level.
4.5.7 ¨ An automatic bank switchover system to place standby system in service and take exhausted system off line when water quality drops below preset level.
4.5.8 ¨ A telemetry device to check various operation parameters and report their condition to the Culligan dealership when service is required; also monitors flow rate and total gallonage.
4.5.9 ¨ Vacuum Breaker for protecting Fiberglass tanks from vacuum.
5.0 INSTRUCTIONS
_____ complete sets of installation, operating and maintenance manuals shall be provided.
6.0 FIELD SERVICE
The services of a factory authorized service representative can be made available to supervise, inspect and provide operator training as required for initial start-up and system operation. Contact your local Culligan dealer for service rates and scheduling.
7.0 WARRANTY
A single written warranty must be provided from the manufacturer of the deionization system covering workmanship and materials.
Culligan Portable Exchange Deionizer Engineer’s Specification Page 4