Title & Back Page - Lubi Pumps

1 ISO 9001 CompanyPumps MotorsSuction DiffusersLSD SERIESP umping Solution DATA BOOKLETC atalogue 3 INTRODUCTIONPage 3 FEATURES AND BENEFITS Page 4 DESIGN FEATURESPage 4 MATERIAL OF CONSTRUCTIONPage 5 TYPICAL INSTALLATIONPage 6 TYPE KEYPage 8 TECHNICAL DATAPage 9 FLANGE DIMENSIONSPage 6 PRESSURE VS TEMPERATURE RATINGSPage 7 PRESSURE DROP CHARTSUCTION DIFFUSERS3 LSDINTRODUCTIONThe Lubi LSD suction Diffuser is a device which directly mounts to the suction side of horizontal or vertical centrifugal is designed to reduce space and installation cost by replacing a conventional 90 elbow, 'Y' strainer and flow stabilizing piping on the suction side of the pump. It may also be used as a reducing elbow, should the suction piping be larger than the pump suction diffuser consists of a start-up strainer (removable fine mesh filter), permanent strainer, guide vane, body cover and body cover 'O' ring.

2 The suction strainer helps to remove foreign materials that may be hazardous to the pump or other system components, while providing the proper flow conditions to the pump. The water flow is passed through an in-built strainer to remove suspended solids and then guided to the pump suction through flow stabilizing guide vane. Guide vanes reduces turbulence and resulting stress and vibration. Fine mesh filter is provided to prevent seal failure and instrumentation damage during commissioning. FEATURES AND BENEFITS It's multi functional design saves space and installation costs by incorporating all conventional devices into a single device mounting to the suction flange of any pump which turn the piping 90 , this feature replacing a conventional elbow. In addition, suction diffuser can be mount on a pump suction flange either horizontal or vertical in-line strainer is divided into a outer cylindrical start-up strainer and a star-shaped permanent start-up strainer is a fine mesh strainer which helps in removing unwanted metal and other foreign particles orobjects when the pump is first started.

3 This strainer is made out of Galvanized steel and it is preferable to removeit after the first 15 days of permanent strainer is made out of 3 mm perforated stainless steel AISI 304 sheet metal. It will protect the pumpagainst metallic or other foreign particles and objects during the entire service life of the pump. The design of thisstrainer provide a large free flow area to reduce pressure drop. This feature replaces a conventional 'Y' strainer. Flow stabilizing vanes on the outlet of suction diffuser allow the suction diffuser to bolt directly to the pump. This feature saves space and also reduces cost of a conventional long straight pipe. Integrally straightening guide vanes also reduces flow turbulence, thereby creating optimum flow conditions and minimize stress on pump suction diffuser connects same size piping to the pump suction , but can also connect to inlet piping one size larger than the pump suction , eliminating a reducing elbow.

4 Available in PN 16 & PN 25 as per DIN standard EN 1092-2, with flanged connections. Flanges with ANSI 125 & ANSI 250 are available as per ASME Grooved end flanged connections are available on request. Available with equal or reduced outlet flanges. Cast on supporting pads for convenient mounting of standard support foot. Drain/purge plugs is used to drain the suction diffuser when required. It has an in-built magnet to trap small metallic particles. Available suction gauge port. 'O' ring seals body cover. Quick opening bolted body cover minimize down time while cleaning the ELBOWIN-LINE STRAINER GUIDE VANESREDUCING ELBOWSTANDARD FEATURES DIFFUSERSLSD4 DESIGN FEATURESMATERIAL OF CONSTRUCTIONC omponentMaterialDuctile ironDuctile ironStainless steel AISI 304 Galvanized steelStainless steel AISI 304 EPDMPN 16/ANSI 125PN 25/ANSI 250 Cast iron Ductile ironStainless steel AISI 304 Galvanized steelStainless steel AISI 304 EPDMD iffuser bodyBody coverPermanent strainer (3 mm perforations)Start-up strainer (fine mesh)Guide vane (flow straightening vane)Body cover 'O' ringINLET FROM SYSTEM'O' RING EPDM 'O' ring for body coverBODY COVER Ductile iron cover can beeasily removed periodicallyto clean the strainer withoutdismantling the pipeworkSTART-UP STRAINER (DISPOSABLE)

5 Galvanized fine mesh strainer which helps to protect the pump and in particular the mechanical seal during start-upPERMANENT STRAINER 3 mm perforated stainless steel AISI 304, star-shaped strainer for protection of the pump against foreign particles and objects during the service life of the pumpOUTLET TOPUMPDIFFUSER BODYR obust iron for PN 16/ANSI 125 Ductile iron for PN 25/ANSI 250 GUIDE VANES tainless steel AISI 304 Guide vanewhich reduces flow turbulence &also reduces cost of conventionallong pipe installation METERING PORTPort for gauge connectionDRAIN PLUGIt is used to drain the suction diffuserwhen required. It has an in-built magnet to trap small metallic particlesBOSS For support pipe installation DIFFUSERSLSD5 SuctionDiffuserEND- suction CLOSE COUPLED MOTOR PUMPVERTICAL IN-LINE PUMPHORIZONTAL SPLIT CASE PUMPEND- suction PUMP COUPLED WITH MOTOR ON BASE FRAMETYPICAL DIFFUSERSLSDLSDType rangeLSD = Lubi suction diffuser65 System connection size==========50 mm65 mm80 mm100 mm125 mm150 mm200 mm250 mm300 mm350 mm5065801001251502002503003502 APressure rating12A 2B3= ANSI 125 (125 psi)= PN 16 (16 bar)= PN 25 (25 bar)= ANSI 250 (250 psi)TYPE KEY50 Pump connection size==========50 mm65 mm80 mm100 mm125 mm150 mm200 mm250 mm300 mm350 mm506580100125150200250300350 PRESSURE vs TEMPERATURE RATINGSM aximum total working pressure (psi)03002502001501003500502503002001501 00 Temperature ( F)Temperature ( C)

6 Class PN 25 Class 250# in accordance with ANSI Standard accordance with DIN standard EN 1092-2 / Class PN 16 in accordance with DIN standard EN 1092-2 / Class 125# in accordance with ANSI Standard total working pressure (bar) DIFFUSERSPRESSURE DROP loss (psi)50 x 40 50 x 50 65 x 50 65 x 65, 80 x 5080 x 6580 x 80100 x 80100 x 100125 x 100125 x 125, 150 x 100150 x 150200 x 150200 x 200250 x 200250 x 250, 300 x 200300 x 250300 x 300150 x 12510 Flow rate (USgm) DIFFUSERSTECHNICAL (SPACE TO REMOVE STRAINER)AJGFEFROM SYSTEMTOPUMPSUCTION DIFFUSERSCJGADBEFG ross weight [kg]Dimensions [mm]Strainerfreearea[ ]TypeFlange size[mm]SystemsidePumpsidePumpsideSystem sideFlange size[inch]LSD 5050 LSD 6550 LSD 8050 LSD 6565 LSD 8065 LSD 8080 LSD 10080 LSD 100100 LSD 125100 LSD 150100 LSD 125125 LSD 150125 LSD 150150 LSD 200150 LSD 200200 LSD 250200 LSD 250250 LSD 300250 LSD 300300 LSD 3503005065806580801001001251501251501502 0020025025030030035022 32 3344565668810101212145065801001251502002 5030022822822824124126726731531531536036 0448448545545629629762762127127127140140 1521521781781782042042672673303303683684 574571/2" NPT 1/2" NPT1/2" NPT1/2" NPT1/2" NPT3/4" NPT3/4" NPT3/4" NPT3/4" NPT3/4" NPT1" NPT1" NPT1" NPT1" NPT1" NPT1" NPT1" NPT1" NPT1" NPT1" : All dimensions in mm unless otherwise noted.

7 See page 9 to 11 for Flange 345681012 D C B AFLANGE DIMENSIONSLSDF igureFlangesizeABC D x Nos. of holes D C B A65 mm(2 inch) D C B A80 mm(3 inch)Rating9PN 16PN 25 ANSI 125 ANSI 250PN 16PN 25 ANSI 125 ANSI 250PN 16PN 25 ANSI 125 ANSI 250PN 16PN 25 ANSI 125 ANSI 250 165 165 150 165 185 185 180 190 200 200 190 210 235 235 230 255 125 125 121 127 145 145 140 149 160 160 152 168 180 190 191 200 102 102- 106 122 122- 125 138 138- 144 158 158- 176 18 x 4 18 x 4 3/4 x 4 3/4 x 8 18 x 4 18 x 8 3/4 x 4 7/8 x 8 18 x 8 18 x 8 3/4 x 4 7/8 x 8 18 x 8 22 x 8 3/4 x 8 7/8 x 8 D C B A100 mm(4 inch) mm(2 inch) suction DIFFUSERSFLANGE D x Nos. of holes RatingPN 16PN 25 ANSI 125 ANSI 250PN 16PN 25 ANSI 125 ANSI 250PN 16PN 25 ANSI 125 ANSI 250PN 16PN 25 ANSI 125 ANSI 250 270 270 255 280 300 300 280 320 360 360 345 380 425 425 405 445 210 220 216 235 240 250 241 270 295 310 299 330 355 370 362 387 188 188- 211 212 212- 246 268 268- 303 320 320- 357 18 x 8 25 x 8 7/8 x 8 7/8 x 8 22 x 8 25 x 8 7/8 x 8 7/8 x 12 22 x 12 25 x 12 7/8 x 8 1-1/8 x 12 25X12 29X12 1 X12 1-1/4 X16 D C B A D C B A D C B A D C B A125 mm(5 inch)150 mm(6 inch)200 mm(8 inch)250 mm(10 inch) suction DIFFUSERSF igureFlangesizeABC D x Nos.

8 Of holes RatingPN 16PN 25 ANSI 125 ANSI 250 485 485 485 520 410 430 432 451 378 378- 418 25X12 29X16 1 X12 1-1/4 X16300 mm(12 inch)FLANGE D C B ANote: All dimensions in mm unless otherwise noted. suction DIFFUSERSLUBI INDUSTRIES LLPS ales Industrial Park, Vadsar-Khatraj Road, Vadsar, Tal-Kalol, 382 721. : # 91-79-30610100, Fax : # Improvement is a continuous process at LUBI . The data given in this publication is therefore subject to Free Service Hotline : 1800 3000 3055