Sewage Treatment Industry

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2 Index ommitment to Quality Sure low quipment Inc. is ISO 9001:2000 Registered and also holds an ISO 9001:2000 ertificate of Registration from the lobal ertification Network. Sure low quipment Inc., for many years, has provided industry with USTOM NINR RIT STRINRS to many design codes. ll custom products are designed and manufactured to SM STION VIII, IV 1, urrent dition. SM U ode Stamp and SM UM ode Stamp available on certain products as specified in this brochure. Sure low quipment Inc. is National oard ertified and is authorized to apply the N Mark for pressure vessels and/or pressure retaining items. Many design codes are available. Index ommitment to Quality...1 Service pplications...1 The Web utomatic Self-leaning Strainers - Sequence of Operation...2 The Web utomatic Self-leaning Strainers...3 pplication and eatures...3 Wedge Wire Straining lement - eatures and dvantages...3 Straining lement Selection...4 Model Information...4 The Spyder-lean utomatic Self-leaning Strainers...5 Spyder-lean dvantage...5 pplication and eatures...5 Specifications / imensions / Weights Specifications and Options...8 The Web utomatic ast Self-leaning Strainers...9 Sequence ontrollers...10 Warranty...ack over Service pplications Sure low s initial focus was to supply the marketplace with an extensive line of Y-Type Strainers, Simplex Strainers, uplex and abricated Strainers. The product line provides a solution to every filtration problem in every industry and if we haven t already solved your problem, our ngineers will develop the best answer. In addition to Pipeline Strainers, Sure low offers Wafer ouble oor heck Valves, Silent heck Valves, utterfly Valves 2 to 48, Knife ate Valves and xpansion Joints, utomatic Strainers and Valve ctuators. Sure low products are available in ast Iron, Steel, Stainless, ronze and any exotic lloy, in sizes from 1/4 to 60, lass 125 to 2500, in NPT, langed, utt Weld and Socket Weld. Pulp and Paper Sewage Treatment Industry hemical Plants ood Processing acilities Steel Mills Mining Operations ement Manufacturing Petrochemical 1

3 SM Section VIII, iv 1, urrent dition: U and UM O STMP vailable The Web utomatic Self-leaning Strainers 1 igure ut-away of Web showing fluid flow during operation Port/straining element interface during backwashing cycle. 6 8 The Web The Web, Motorized, utomatic, Self-leaning Strainer, provides continuous debris removal from fluid piping systems that demand full time uninterrupted flow. The Web is particularly effective in fluid applications where unattended service, high solids loading and/or uninterrupted flow requirements deem a basket strainer and its attendant maintenance problems impractical. ny of the Model S Strainers, applied correctly, will prove efficient and cost effective compared to simplex/duplex strainers or other automatic straining systems. Sequence of Operation 1. ebris laden fluid enters through inlet to inner chamber. (ig. 1) 2. irty fluid flows upward and outward through the strainer element (). 3. ebris is retained on the flat face of the strainer element, while strained fluid continues to outer chamber and exits through strainer outlet. (See inset) 4. uring backwash or cleaning cycle, the motor/ gear reducer () is engaged and drives the hollow drive shaft () and hollow port () around the inner circumference of the strainer element. 5. The backwash assembly,, and are opened to atmospheric pressure by opening the backwash control valve (not shown). 6. low reversal occurs at the port/straining element () interface because of the pressure differential described in 5. (See Inset) 7. ebris is effectively vacuumed from the full length of the straining element by a vigorous reverse fluid flow and into the hollow port; down the hollow drive shaft and out the backwash outlet (). 8. The hollow port continues to sweep the full length of the strainer element until the cleaning cycle has ended. 9. The strainer will provide continuous uninterrupted fluid flow during the cleaning operation. 10. The cleaning cycle can be set for continuous or intermittent backwash. 2

4 SM Section VIII, iv 1, urrent dition: U and UM O STMP vailable The Web utomatic Self-leaning Strainers igure 2 - Wedge Wire Straining lement ross-section pplication The Web s unique strainer element design permits installation in virtually any piping system operating at a positive pressure. The Web can operate through a wide range of operating pressures (5 psig minimum) and solids loading with effective debris removal and backwashing across the entire pressure range. dditionally, only one drain/ backwash connection is required for installation, effectively eliminating the expense of a separate backwash pressure connection. Strainers are used to protect equipment such as valves, pumps, meters, heat exchangers or spray nozzles, as well as in-feed water and process water applications or virtually any similar application. The Web Model S utomatic Self-leaning Strainers are fabricated in pipe sizes ranging from 1" to 48" to suit most application requirements. Straining lement The Webs feature a revolutionary reverse rolled wedge-wire straining element (ig. 2) that is extremely rugged and more clog-resistant than conventional strainer elements that use perforated plate or wire mesh screens. This proven state-of-the-art straining media is fabricated by wrapping vertical rods with wedge shaped profile wire. ach intersection of rod and wire is welded to produce an extremely rugged one-piece element. This forms a continuous slot that allows only two point contact with debris particles to reduce clogging. The wedge shaped profile wire reduces the possibility of retaining debris smaller than the screen opening which historically has been the cause of premature clogging or failure of competitive screen designs. Proven eatures Include: Patented rugged screen and mechanical assist backwash mechanism extends useful service life. Unique clog-resistant straining element reduces maintenance downtime. Unique adjustable accelerator plate aids cleaning in difficult applications. ll internal replacement parts supplied in corrosion resistant material. fficient new design reduces maintenance requirements; requires fewer parts. lats for manual operation in case of power failure. Low rpm backwash mechanism provides more efficient cleaning, less wear of internals. dvantages of Wedge Wire Straining lement Maximum effective flow area and maximum operating efficiency are maintained throughout service life. Maintenance costs are reduced drastically due to reduced clogging and stapling of fibrous material. Long-lived straining element provides reduced operating costs over entire service life. Rigid element prevents flexing which can cause premature element failure. fficient, effective debris collection at media/screen interface. 3

5 Straining lement Selection/Model Information igure 3 - Wedge-Wire Straining lements Straining lement Selection The Model S Straining lement (ig. 3) is an extremely rugged, single-piece unit available in a variety of standard and custom openings and materials. Screen opening should be selected based on the amount of protection necessary, and not on the smallest opening available. y specifying a smaller opening than needed, more debris will be retained and subsequently result in longer cleaning durations and increased backwash fluid loss. lso, smaller than necessary screen openings will reduce open screen area and increase pressure loss. The screen opening should be approximately one-third (1/3) to one half (1/2) the largest size particle that can safely pass downstream. xample: strainer protecting spray nozzles with a 1/16" orifice would be supplied with a 1/32" screen opening. Slot Opening (inches) Straining lement Selection uide raction quivalent inches (mm) Standard Mesh quivalent Micron quivalent % Open rea (0.08) (0.15) (0.25) /64 (0.4) (0.5) /32 (0.8) /16 (1.6) /8 (3.2) /16 (4.8) /4 (6.4) Other slot openings are available upon request. Standard screen material is 304 Stainless Steel. 316 Stainless Steel, 316L Stainless Steel, Monel and other materials are available upon request. Model Information The W ase Unit The W With Spyder lean Model ody Material Size Range Model ody Material Size Range S10 ast Iron 2-10 S11 ast Iron 2-10 S20 arbon Steel 1-10 S31 arbon Steel 1 1/2-36 S30 arbon Steel

6 SM Section VIII, iv 1, urrent dition: U and UM O STMP vailable The Spyder-lean dvantage The Spyder-lean The Spyder-lean is a line of Motorized,utomatic Self-leaning Strainers. On fluid piping systems, which demand added cleaning abilities due to application requirements, the Spyder-lean provides continuous uninterrupted debris removal. It is very effective in system applications where operating pressure is low (under 5 psig) or where the debris is difficult to remove. The Model S31 Strainer provides unattended service with the addition of external backwash to enhance the self-cleaning attribute over other automatic strainers. pplication The Spyder-lean s unique backwash system permits installation in a broader range of applications. This range includes from relatively low pressure to very high pressure and from coarse, easily removed debris to fine, sticky debris. In a low pressure mode (such as on the suction side of a pumping system), the Spyder-lean system is mounted on the leading edge of the strainer backwash arm. xternal fluid is directed at an incident angle over the inside surface of the straining element through the high pressure nozzle assembly. The high velocity of this spray assists the cleaning of the wedge-wire straining element. xternal source backwash pressure must be a minimum of 30 psi over operating pressure. Spyder-lean Strainers are used to protect equipment such as pumps, motors, heat exchangers or spray nozzles, as well as process applications such as cooling towers or virtually any similar application. The Model S31 Spyder-lean Self-leaning Strainers are fabricated in pipe sizes ranging from 1" to 36" to suit most applications requirements. The Spyder-lean system can also easily and economically be field installed in any Sure low quipment Self-leaning Strainer (6" size and larger) in service as a retrofit installation. The Unique Spyder-lean dvantage The external source of backwash fluid is introduced by opening the control valve (not shown) connecting the spray nozzles () at the leading edge () of the backwash assembly. Jet spray action occurs at the straining element inside surface (see insert) in addition to the flow reversal at the port/straining element interface. ebris is effectively removed from the full-length of the straining element by a vigorous Spyder- lean fluid flow into the hollow port; down the hollow drive shaft and out the backwash outlet. ross-sectional View of Port/Straining lement uring ackwash ycle igure 2 - The innovative internals of the Spyder-lean showing ease of maintenance. Proven eatures Include unique patented spray assisted/ mechanical backwash mechanism for extended service life. clog-resistant straining element (wedge-wire configuration) to reduce maintenance downtime and operator assisted attention. ll internal replacement parts supplied in corrosion resistant materials (special material available on request). n efficient, effective cleaning mechanism which reduces annual maintenance, requiring fewer parts. low rpm backwash cycle provides more efficient cleaning, less wear (no contact between rotating parts) and longer duty cycle on motors and speed reducers. ny existing Web (6 and up) can be converted to Spyder-lean. Strainer Size 1, 1-1/2 2 or 3 The W c/w The Spyder-lean Model S31 utomatic Self-leaning Strainer Typical ackwash low and xternal Source Requirement /12 14/16 18/ ackwash Line Size /2 1-1/ ackwash low in PM xternal ackwash Source PM xternal Line Size 3/4 3/4 3/ /4 1-1/2 1-1/2 2 5

7 SM Section VIII, iv 1, urrent dition: U and UM O STMP vailable Specifications / imensions / Weights Model S20 & S arbon Steel " 1 4 NPT istance Req'd for Screen Removal OUTLT 1/2" ia. Mounting ole (4 Req'd) on a ia. INLT SIZ VNT VLV Model No. Size SIZ ack-wash Port 6" pprox. Wts. (Lbs.) ry Wet ov S /2 14 1/ /2 1 NPT 1 NPT 11 7/ / S20 1 1/ /2 14 1/ /2 1 NPT 1 NPT 11 7/ / S /2 14 1/ /2 1 NPT 1 NPT 11 7/ / S20 2 1/ /2 14 1/ /2 1 NPT 1 NPT 11 7/ / S /2 14 1/ /2 1 NPT 1 NPT 11 7/ / S /2 14 1/ /2 1 NPT 1 NPT 11 7/ / S20/ / /2 NPT 1 NPT / S20/ /2 1 1/2 NPT 1 NPT 21 1/ / S20/ /2 1 1/2 NPT 1 NPT 21 1/ /4 rain Threaded (NPT) Inlet/Outlet connections available. Model S30 & S arbon Steel VNT Motor.P. istance Req'd for Screen Removal OUTLT SIZ INLT J Size ackwash onnection 45 NPT rain / lowoff 7" 8 ia. I ia... Model No. Size I J pprox. Wts. (Lbs.) ry Wet ov S30/ /2 14 1/ /2 2 NPT 1 1/2 NPT / / S30/ /2 14 1/ /2 2 NPT 1 1/2 NPT / / S30/ /2 19 1/2 15 1/ /2 NPT / / S30/ /2 19 1/2 15 1/ /2 NPT / / S30/ / NPT / / S30/ / NPT / /4 imensions subject to change without notice. pply for certified drawings. Motor.P. 6

8 SM Section VIII, iv 1, urrent dition: U and UM O STMP vailable Specifications / imensions / Weights Model S30 & S arbon Steel VNT J istance Req'd for Screen Removal OUTLT SIZ INLT Size ackwash onnection 45 Model No. Water low PM 200, ,000 90,000 80,000 70,000 60,000 50,000 40,000 30,000 20,000 10,000 9,000 8,000 7,000 6,000 5,000 4,000 3,000 2,000 Size NPT rain / lowoff 1" 1 ia. 8 Mounting oles I ia... Water low PM 6,000 5,000 4,000 3,000 2,000 1, I J pprox. Wts. (Lbs.) ry Wet ov S30/ NPT ,500 8, / S30/ / NPT ,525 13,625 1,275 1/ S30/ / NPT ,050 26,975 1,650 1/2 Strainer Size Larger sizes available upon request. imensions subject to change without notice. pply for certified drawings. 1, 1-1/2 2 or 3 Model S30 & S31 Typical ackwash low Requirement Model S10 / S20 (1-8 ) Model S30 (10-36 ) /12 14/16 18/ ackwash Line Size /2 1-1/ ackwash low in PM Specifications - Pressure rop harts Model S / /2 1 Motor.P. NOT: 1, Pressure rop PSI 10"- 48" with 1/32" or larger screen opening Pressure rop PSI 2"-10" with 1/32" or larger screen opening These charts are for theoretical calculations ONLY. Please contact our office with your exact specifications and you will be provided with factory calculations. 7

9 Specif ications and Options Typical Strainer Specifications The strainer shall be Model S20/S30/ S31 Self-leaning, Motorized Type. (ig. 4) The body and cover shall be fabricated (carbon steel), designed, manufactured and tested generally to SM Section VIII Standards, using qualified SM Section IX welders. ousing to be suitable for a design pressure of (150) psig. Inlet and outlet connections shall be flanged and conform to NSI 16.5 standards. The strainer shall have a single backwash connection and drain connections. Unit to be complete with factory supplied steel support legs for bolting to concrete or steel base. Strainer shall be size capable of handling gpm of fluid at a psig pressure loss with clean straining elements. The straining element will be manufactured from corrosion resistant (304 Stainless Steel) reverse rolled slotted wedge wire screen designed with inch openings. The wide or flat cross section of the wedge wire shall face the direction of flow providing for a continuous smooth flat surface to trap debris. The straining media shall be free of pockets, tubes, collector bars, etc. that accumulate and trap debris permanently. ll internal parts will be of corrosion resistant (304 Stainless Steel). The strainer shall be provided with drive shaft and hollow port assembly fitted with all necessary bearings and seals. The drive arm and hollow port assembly including the adjustable accelerator plate will be free running at a maximum speed of two (2) rpm and not contact with screen surface. Port assembly shall be factory and field adjustable for positive effective cleaning and shear capability. Note: Sizes 1" thru 16" have (1) backwash hollow port. Sizes 18" and up will have (2) backwash hollow ports. rive shaft will be supported at the top with roller bearings located in a double reduction gear reducer and at the bottom with a water lubricated guide bearing. The gear reducer shall be driven by a hp, v, Ph, 50/60 z, T motor. ig. 4 Strainer Options vailable over Lift Recommended for remote locations. ssemblies - SM - SM Section VIII, ivision R 50 ppendix. SM Section II, lass 3. Materials of onsult factory for stainless steel, copper, onstruction - nickel, monel, or other requirements. ontrol Package - esign - ontrol Panel with Nema 4 nclosure, ackwash Valve with lectric Operator, Single lement ifferential Pressure Switch. igh Pressure applications - onsult factory. Spyder-lean - Low Pressure and Special pplication. Skid Packages - ll equipment desired, including strainers, valves, controls, wiring, piping and skids may be combined as a complete, custom package. Size of the project has no limitation. 8

10 SM Section VIII, iv 1, urrent dition: U and UM O STMP vailable The Web utomatic ast Self-leaning Strainers ngineered or xcellence When utomatic ast Self-leaning Strainers were designed, the priority to make quality and economy inherent in the Model S10 ast Self-leaning Strainers was our obligation to meet our customers' growing needs. Quality The utomatic Self-leaning Strainers have always been meticulously manufactured with quality in mind. The utomatic Model S10 Self-leaning Strainers will continue that important tradition of providing consistent and troublefree service. They are designed and constructed to be in compliance with NSI and SM Section VIII, ivision 1. The SM ode U Stamp is also available. Model S10 & S ast Iron VNT istance Req'd or Screen Removal 1/4" NPT OUTLT LOW INLT NPT rain SIZ 6" NPT ackwash onnection ia... (3) 1/2" ia. Mounting oles on a ia... Model No. Size imensions subject to change without notice. pply for certified drawings. pproximate Wts. (Lbs.) ry Wet over 0200-S10/ / / / NPT 1 NPT 13 1/ / S10/11 2 1/2-125/ / / NPT 1 NPT 13 1/ / S10/ / / / NPT 1 NPT 13 1/ / S10/ / / / NPT 1 NPT 13 1/ / S10/ / /8 15 7/8 11 1/ /2 NPT 1 NPT 16 1/ / S10/ / /8 20 3/ /2 1 1/2 NPT 1 NPT 21 1/ / S10/ / /8 20 3/ /2 1 1/2 NPT 1 NPT 21 1/ /4 Motor.P. 9

11 esign and onstruction The Sequence ontroller is designed with the ustomers specific requirements in mind. The Sequence ontroller provides an automatic, effective backwashing cycle with a minimum loss of water. The Sequence ontrollers are constructed with state-of-the-art industrial type components which permits replacing individual components without having to replace an entire circuit board. The industrial type components are more durable and reliable and adjustments can be made with ease. Standard eatures nclosure - Nema 4 djustable ycle Timer Off-delay Timer Motor Starters with uxiliary contact and overload relay Selector Switch Indicating Lights uses Terminal lock Modes of Operation There are basically two modes of operation - intermittent and continuous. y turning the selector switch, the mode of operation can be selected. utomatic Intermittent Position With the selector in the uto position, the drive motor will start and the backwash valve opens as determined by the adjustable cycle timer or by the differential pressure switch. The differential pressure switch is normally factory set at 1-1-1/2 psig over the anticipated clean pressure drop. Should a high differential pressure occur during the timed off period, the differential pressure switch will override the cycle timer and start or continue the backwash until the differential pressure is satisfied. fter the differential pressure has been satisfied, the strainer will continue to backwash for an additional 60 seconds (time delay relay). The automatic self-cleaning strainer would start a backwash cycle based on the timed sequence selected on the adjustable cycle timer. The timed sequence should be determined by each installation and the conditions experienced. The adjustable cycle timer can be programmed from 15 minutes to a 10-hour cycle (off) and for 1 to 10 minutes duration (on). djustments can be made as conditions warrant them. The default factory settings for timers are 2 hours O and 2 minutes ON. Sequence ontroller ontinuous Operation The selector switch is adjusted to Manual thus permitting the continuous mode. In the continuous mode, the automatic self-cleaning strainer will be backwashing continuously with the backwash valve open and the drive motor running. This mode of operation may be necessary if the installation experiences high solid loadings. In either Mode of Operation, the backwash assembly is specifically designed to rotate at 2 RPM to allow for effective backwashing in less time, thus decreasing the amount of backwash water lost. Standard ontrol Package The Sequence ontroller ontrol Package consists of: ontrol Panel with Nema 4 nclosure ackwash Valve with lectric Operator Single lement ifferential Pressure Switch Options 230V, 380V, 460V, 575V 50 or 60 hertz ual lement ifferential Pressure Switch Nema 4X (ibreglass or Stainless Steel), Nema 7 or 9 (xplosion Proof), Nema 12, Nema 3 nclosures ircuit reakers, isconnect Switch, Transformer Reset uttons larms PL Interface and/or Pump Interlock xtra ontact and Relays ackwash valve can be supplied with Pneumatic Operator ackwash Valve available in numerous materials ifferential Pressure Switches available with Mercury, Snap ction, iaphragm or piston contacts. odes / Standards The Sequence ontroller can be manufactured to UL Listings, S pproval, JI, NM Standards. 10

12 rochures vailable from Sure low quipment Inc. Sure low quipment Inc. Limited Warranty ll products are warranted to be free of defects in material and workmanship for a period of one year from the date of shipment, subject to below. ll custom products are not subject to return, credit or refund. If the purchaser believes a product to be defective, the purchaser shall: (a) Notify the manufacturer within ten(10) days after receipt of merchandise, state the alleged defect and request permission to return the product. Merchandise will not be accepted for return without a Return ode clearly marked on the outside of the package. ontact the office to obtain a return code. Merchandise will not be accepted for return or credit later than six (6) months after invoicing. (b) If permission is given, return the product with the transportation prepaid. ollect shipments will not be accepted. oods must be returned prepaid. If a shipment is received in a damaged or deficient condition, a claim must be filed with the delivering carrier and noted on the freight bill before you accept the merchandise. ll other claims must be made in writing and received by Sure low quipment Inc. within ten (10) days after receipt of merchandise. If the product is accepted for return and found to be defective, the manufacturer will, at its discretion, either repair or replace the product,.o.. factory, within 60 days of receipt, or issue credit for the purchase price. Sure low quipment Inc. shall not be liable for failure to deliver or delays in delivering occasioned by acts of od, war, labor difficulties, inability to obtain materials or any other causes whatsoever beyond our control. Other than to repair, replace or credit as described above, purchaser agrees that manufacturer shall not be liable for any loss, costs, expenses, or damages of any kind arising out of the product, its use, installation or replacements, labeling, instructions, information or technical data of any kind, description of product use, sample or model, warnings or lack of any of the foregoing. NO OTR WRRNTIS, WRITTN OR ORL, XPRSS OR IMPLI, INLUIN T WRRNTIS O ITNSS OR PRTIULR PURPOS N MRNTILITY, R M OR UTORIZ. NO IRMTION O T, PROMIS, SRIPTION O PROUT OR US OR SMPL OR MOL SLL RT NY WRRNTY ROM MNUTURR, UNLSS SIN Y T PRSINT O MNUTURR. NLLTIONS: ancelled orders will be subject to a charge of at least 35%. MINIMUM ILLIN: $ NT ancelled custom orders will be subject to a charge of 100% of quoted price. SPIL OUMNTTION: charge will apply for non-standard, special documentation requests such as Material Test Reports (MTR s) and ertificates of onformance (O s). March 2009 U.S..: P.O. ox 321, Tonawanda, New York Toll ree ax anada: 5010 North Service Road, urlington ON L7L 5R5 Tel: ax: mail: info@sureflowequipment.com Web Site: