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Water Management Systems
Filtration and Separation Systems
SGM-250A Sand and Gravel Filter
CSM Centri Separator
BFS Bag Filter
SWF Full Flow Strainers
Product Manual
Sterling, Inc.
th
2900 S. 160 Street
New Berlin, WI 53151
Tel [262] 641-8610
Fax [262] 641-8653
Part Number A0568850 Revision C Bulletin No. SC7-600.4
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Sterling/Sterlco is committed to a continuing program of product improvement. Specifications, appearance, and dimensions described in this manual are subject to change without notice. © Copyright Sterling/Sterlco 2008 All rights reserved. Effective 4/14/2008 Part No. A0568850 Revision C Bulletin No. SC7-600.3 Page 2 Water Management Systems and Products
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Safety Considerations Sterling/Sterlco water management systems products are designed to provide safe and reliable operation when installed and operated within design specifications, following national and local safety codes. To avoid possible personnel injury or equipment damage when installing, operating, or maintaining this equipment, use good judgment and follow these safe practices: Follow all SAFETY CODES. Wear SAFETY GLASSES and WORK GLOVES. Disconnect and/or lock out pow
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Table of Contents 1 Introduction...............................................................5 1-1 General Description 1-2 Sand and Gravel Automatic Backwash Filters 1-3 Centri-Separator Filter Systems 1-4 BFS Series Bag Filters 1-5 SWF Series Full Flow Stainless Steel Filters 2 Shipping Information...............................................8 2-1 Unpacking and Inspection 2-2 In the Event of Shipping Damages 2-3 If the Shipment is Not Complete 2-4 If the Shipment is Not Correct
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1 Introduction 1-1 General Description Filtration is used on cooling tower systems or chilled water systems requiring removal of large, heavy-duty suspended solids. Four filtration systems are available; sand and gravel filters, centrifugal separators, bag filters, and strainers. Sand and gravel filters use two layers of gravel and one layer of sand for filtration. It is piped in a by-pass configuration. A timer can be preset at any interval to automatically back wash the sand and gr
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1-2 Sand and Gravel Automatic Backwash Filters Sterling/Sterlco sand and gravel filters are shipped complete with: • Tank • Valve manifold • Gauges • Initial charge of sand and gravel The system switches valves automatically. Two backwash control mechanisms are available. Backwash cycles can be based on a time cycle (SGM-250A) or pressure differential across the unit (SGM- 250P). SGM-250A sand and gravel automatic backwash filters are available in a 250-ton (756,000 Kcal/hr) mode
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Note: Centrifugal separation systems must not be used for closed- loop or chilled water systems; back flushing eliminates chemicals added to the system. 1-4 BFS Series Bag Filters BFS Series bag filters can be used for full flow or bypass applications. BFS Series filters feature single cell 25-micron polyester filter bags, and include pressure gauges. BFS bag filters are available for tower systems up to 150 tons and chiller systems up to 200 tons. 1-5 SWF Series Full Flow Stainless St
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2 Shipping Information 2-1 Unpacking and Inspection You should inspect your Sterling/Sterlco water management systems and products for possible shipping damage. Thoroughly check the equipment for any damage that might have occurred in transit, such as broken or loose wiring and components, loose hardware and mounting screws, etc. In case of breakage, damage, shortage, or incorrect shipment, refer to the following sections. 2-2 In the Event of Shipping Damages Important! Accor
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2-3 If the Shipment is Not Complete Check the packing list. The apparent shortage may be intentional. Back-ordered items are noted on the packing list. You should have: Sterling/Sterlco water management system equipment or chemical treatment products Bill of lading Packing list Operating and Installation packet Electrical schematic and panel layout drawings Component instruction manuals Re-inspect the container and packing material to see if you missed any smaller items duri
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3 Installation 3-1 Installing the Sand and Gravel Backwash Filter Selecting an Installation Site Place the unit on a suitable and level foundation, preferably a concrete floor or pad and near the pump for best operation. The location you select must also have an open drain to a sewer for backwash, a hookup to city water, and a 110-volt electrical source. Use a fork lift truck when moving the unit to avoid damage. Installing the Unit Be sure that piping to the unit has a bypass cir
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Filling the Unit Fill the water tank with water by opening valves and . Valves , , , and are automatically controlled by a timer. After you open valves and , water flows and is filtered in the normal direction. Take a moment now, while the filter is clean, to record pressure gauge readings at the inlet and outlet of the filter. You’ll use these readings later to determine the cleanliness of the filter media. Complete the installation of the sand and gravel filter by plugging
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Complete the installation of your Centri-Separator system by plugging the unit into a 110-volt source of electricity. The Centri- Separator system is now ready to use. 3-3 Installing the BFS Series Bag Filter Selecting an Installation Site Place the unit on a suitable and level foundation, preferably a concrete floor or pad and near the pump for best operation. Use a fork lift truck when moving the larger units to avoid damage. Installing Piping Be sure that piping to the unit h
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4 Specifications Sand and Gravel Automatic Backwash Filters • Model SGM-250A is equipped with automatic valves operated from a time device so that backwash is accomplished periodically on an automatic basis. Dimensions in. (cm) Shipping Pressure Model L W H weight differential number in. cm in. cm in. cm lbs. Kg backwash SGM-250A 40 101 48 122 39 99 1,800 818 SG-250P Model SGM-250P. Automatic valves are operated from pressure switch. Pressure switch monitors the pressure drop in the f
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E M I T N AY D O I 5 Operation 5-1 Sand and Gravel Automatic Backwash Filter Adjusting Timer Adjust the time control of the SGM-250A if desired. The factory set timer is set to backwash four minutes every 24 hours. Frequency and duration may be reset as required. See diagram below to adjust timer. MANUAL For manual regeneration, move lever in direction of arrow as far REGENERATION as it will go - then release. Red 1. Set skipper wheel so that Dial "TO-DAY" or number one is op
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The Model SGM-250P backwashes based upon pressure differential across the filter media. Additionally, an adjustable timer allows back washing for up to five minutes. The factory setting is four minutes. The pressure differential switch is adjustable for pressure drop and dead band. Backwash will start when the pressure differential reaches set point plus the dead band. For example, if the pressure differential is set for 6 psi, the dead band for 4 psi, and the backwash timer for 4 minu
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5-3 BFS Series Bag Filters Bags are easily removed from the top of the filter housing. Before removing the bag filter be sure that pressure has been relieved and that the filter housing has been isolated to prevent spill over. ! CAUTION SEVERE INJURY WILL RESULT IF HOUSING COVER IS REMOVED UNDER PRESSURE. RELIEVE PRESSURE AND ISOLATE HOUSING BEFORE REMOVING COVER. Loosen and unlatch the V-clamps or swing type bolts that fasten down the top of the filter housing. The top is hinged on
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preferably a garden hose if possible. Return it to the filter housing ensuring that the U-shaped gasket fits securely to the bottom of the strainer. Make sure that the strainer head gasket is secure. Reposition the strainer cover on top of the filter housing. On those models with a band clamp, replace the band clamp around the strainer cover and housing latching the T-bolt. Then push the latch handle towards the filter housing. The T-bolt latch does not need adjustment when installed. I
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Parts Department [ ] [262] Call toll-free 7am–5pm CST 800 423-3183 or call 641-8610 or fax [262] 641-8653 The ACS Customer Service Group will provide your company with genuine OEM quality parts manufactured to engineering design specifications, which will maximize your equipment’s performance and efficiency. To assist in expediting your phone or fax order, please have the model and serial number of your unit when you contact us. ACS welcomes inquiries on all your parts needs an is d
