Tablet Feeder Selection Guide
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STEP #1
Determine the appropriate SERIES for your application (LF Series, 2000 Series, 4000 Series), based on the write-up below.
STEP #2
a) Scroll to Tablet Feeder Selection table to meet your application requirements.
b) From this table note a MODEL selection based on Inlet/Outlet Diameter, Minimum Flow, Maximum Flow, Fixed Weir or Adjustable Sluice.
STEP #3
a) You should now have the appropriate MODEL for your application.
b) To complete the selection process, click on the MODEL link you have chosen (in the table below). This link will direct you to the tablet feeder webpage. Note: there are tablet feeder manuals, drawings and specifications available for download.
LF SERIES, Tablet Feeder
Flow surges are common in any treatment system. This variation in flow rate can cause major problems for conventional tablet feeders and manually adjusted gas or liquid chemical feed systems. The tiered flow deck will enhance the fluid dynamics of the liquids passing through the system. During low flow, usually at night, liquids are directed through the inert drainage tier, the lowest tier of the feeder. It forms a narrow hydraulic channel that increases the velocity of the flow for uniform tablet exposure. When flow increases during the morning hours, the liquid flow rises to the intermediate flow tier. It creates a flume to accelerate the flow passing the tablets. When the flow rate is greater than the capacity of this intermediate tier, liquids rise to the upper flow tier. That tier causes the liquid to lose velocity, preventing excessive tablet consumption. The LF Series tablet feeders provide a chemical dose that is ideal for potable water and wastewater systems subject to high organic loading. Manufactured from ABS for durability and easy installation, integral inlet and outlet hubs accept four or eight inch piping. LF Series feeders are typically used for residential or small commercial onsite application, stormwater treatment of remote potable water systems. Four different models are available to accommodate flows from a minimum of 75 GPD with the LF1000, through to a maximum of 400,000 GPD with the LF4800. LF Series feeders range in length from 16 to 22 inches, and 7 to 12 inches in width. The 24 inch tall, one piece feed tubes are designed to fit inside standard 4” PVC piping, allowing all LF Series feeders to be surface installed or direct buried. For deeper installations, our optional remote feed tube removal system allows convenient feeder maintenance from grade.
2000 SERIES, Tablet Feeder
For flows ranging from 200 GPD through 100,000 GPD, Series 2000 tablet feeders can treat gravity influent up to 70 GPM. 25 ½ inches in length, 10 ½ inches in width and ranging in body height from 12 inches through 48 inches, five different models of Series 2000 feeders are available for different installation conditions. Choose between interchangeable weirs or an outlet sluice, for desired dosage control.
4000 SERIES, Tablet Feeder
Treatment capacities from 20,000 GPD through 200,000 GPD with a maximum flow of 150 GPM, give Series 4000 feeders the capability to treat flow from a wide range of facilities. With a length of 35 ¾ inches, a width of 14 ½ inches and body heights ranging from 12 inches through 48 inches, five different models of Series 4000 feeders are available for different installation conditions. Interchangeable weirs and an adjustable outlet sluice are available to maximize your feeder’s performance.
The above information is from Norweco.
Tablet Feeder Selection Table
| Model | Inlet/Outlet Diameter |
Minimum Flow (GPD) |
Maximum Flow (GPD) |
Number of Tablet Feed Tubes |
Fixed Weir |
Adjustable Sluice |
Drawing Number |
| LF 1000 | 4" | 75 | 1,500 | 1 | Uses Three Tiered Flow Deck | PC-5-9902 | |
| LF 2000 | 4" | 500 | 10,000 | 2 | Uses Three Tiered Flow Deck | PC-5-9923 | |
| LF 3000 | 4" | 500 | 20,000 | 3 | Uses Three Tiered Flow Deck | PC-5-9924 | |
| LF 4600 | 6" | 20,000 | 200,000 | 4 | Uses Three Tiered Flow Deck | PC-5-9931 | |
| LF 4800 | 8" | 40,000 | 400,000 | 4 | Uses Three Tiered Flow Deck | PC-5-9925 | |
| XT 2000 | 4" | 200 | 100,000 | 2 | Yes | No | PC-5-9501 |
| XT 2000-S | 4" | 200 | 100,000 | 2 | No | Yes | PC-5-9501 |
| IT 2000 | 4" | 200 | 100,000 | 2 | Yes | No | PC-5-9500 |
| IT 2000-S | 4" | 200 | 100,000 | 2 | No | Yes | PC-5-9500 |
| ITR 2000-S | 4" | 200 | 100,000 | 2 | Not Available | Yes | PC-5-9502 |
| XT 4000 | 6" | 20,000 | 200,000 | 4 | Yes | No | PC-5-9503 |
| XT 4000-S | 6" | 20,000 | 200,000 | 4 | No | Yes | PC-5-9503 |
| IT 4000 | 6" | 20,000 | 200,000 | 4 | Yes | No | PC-5-9504 |
| IT 4000-S | 6" | 20,000 | 200,000 | 4 | No | Yes | PC-5-9504 |
| ITR 4000-S | 6" | 20,000 | 200,000 | 4 | Not Available | Yes | PC-5-9505 |
Tablet Feeder Facts
- Norweco tablet feeders provide effective treatment without the use of mechanical components or electrical connections.
- All Norweco tablet feeders automatically adjust chemical dose in response to changes in daily influent rates and velocity.
- By directing and controlling the velocity of the incoming flow, our exclusive tiered flow deck provides consistent chemical application at sustained, variable and intermittent flow rates.
- Fall built into the floor of the feeders allows the units to drain during no flow conditions. This stabilizes the chemical dose and minimizes the chemical usage.
- Inlet hubs in 4”, 6” and 8” diameters simplify installation and eliminate the use of costly drop boxes and couplings.
- Norweco tablet feeders have much smaller footprint than any other means of disinfection or dechlorination. This will result in significant design and installation savings.
- All tablet feeders provide multiple installation options including direct burial, in-line and contact chamber mounting with aluminum mounting brackets.
- The LF Series of tablet feeders are produced from ABS for unmatched durability and ease of installation.
- A variety of optional extension risers and accessories allow Norweco tablet feeders to be direct buried but still be accessible and maintainable from grade, eliminating confined space entry requirements.
- Our moulded one-piece ClearCheck feed tubes are extremely durable and have twist-lock caps for safe handling of tablets and dependable performance.
- In the Series 2000 and 4000 tablet feeders, chemical dose is precisely regulated by an adjustable inlet baffle, interchangeable weir plates or optional outlet sluice.
- All Bio-Dynamic tablet feeders are listed under NSF Standard 46, Section 11 test criteria.
- To insure complete chemical mixing, all outflow passes through the feeder’s hydrodynamic mixing chamber.
- Our tablet feeder customers are protected by a ten year limited warranty.
- Norweco tablet feeders have the lowest initial cost of any commercially available disinfection or dechlorination system.
- All models of Bio-Dynamic tablet feeders are used for wastewater, potable water, process water and cooling tower water treatment.
The above information is from Norweco.
Warranty
Norweco Tablet Feeder owners are protected from defects in material and workmanship under normal use and service for a full ten year period. A warranty registration card is included with every new tablet feeder Installation and Operation Manual. The above information is from Norweco.