SERIES DATA BOOKLET Suction Diffusers Pumps Motors ISO 9001 Company Catalogue 2011 Pumping Solution
CONTENTS INTRODUCTION Page 3 FEATURES AND BENEFITS Page 3 DESIGN FEATURES Page 4 MATERIAL OF CONSTRUCTION Page 4 TYPICAL INSTALLATION Page 5 TYPE KEY Page 6 PRESSURE VS TEMPERATURE RATINGS Page 6 PRESSURE DROP CHART Page 7 TECHNICAL DATA Page 8 FLANGE DIMENSIONS Page 9 2
INTRODUCTION The Lubi LSD Suction Diffuser is a device which directly mounts to the suction side of horizontal or vertical centrifugal pumps. It 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 inlet. The suction diffuser consists of a startup strainer (removable fine mesh filter), permanent strainer, guide vane, body cover and body cover 'O' ring. 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 inbuilt 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 solution. 90 ELBOW Direct 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 position. INLINE STRAINER The inline strainer is divided into a outer cylindrical startup strainer and a starshaped permanent strainer. The startup strainer is a fine mesh strainer which helps in removing unwanted metal and other foreign particles or objects when the pump is first started. This strainer is made out of Galvanized steel and it is preferable to remove it after the first 15 days of service. The permanent strainer is made out of 3 mm perforated stainless steel AISI 304 sheet metal. It will protect the pump against metallic or other foreign particles and objects during the entire service life of the pump. The design of this strainer provide a large free flow area to reduce pressure drop. This feature replaces a conventional 'Y' strainer. GUIDE VANES 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 components. REDUCING ELBOW The 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. STANDARD FEATURES INCLUDE Available in & as per DIN standard EN 10922, with flanged connections. Flanges with & ANSI 2 are available as per ASME B16.1. Grooved end flanged connections are available on request. Available with equal or reduced outlet flanges. Cast on supporting pads for convenient mounting of standard I.D support foot. Drain/purge plugs is used to drain the suction diffuser when required. It has an inbuilt 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 strainer. 3
DESIGN FEATURES INLET FROM SYSTEM METERING PORT Port for gauge connection DIFFUSER BODY Robust construction. Cast iron for / Ductile iron for /ANSI 2 GUIDE VANE Stainless steel AISI 304 Guide vane which reduces flow turbulence & also reduces cost of conventional long pipe installation 'O' RING EPDM 'O' ring for body cover STARTUP STRAINER (DISPOSABLE) Galvanized fine mesh strainer which helps to protect the pump and in particular the mechanical seal during startup PERMANENT STRAINER 3 mm perforated stainless steel AISI 304, starshaped strainer for protection of the pump against foreign particles and objects during the service life of the pump OUTLET TO PUMP BODY COVER Ductile iron cover can be easily removed periodically to clean the strainer without dismantling the pipework BOSS For support pipe installation DRAIN PLUG It is used to drain the suction diffuser when required. It has an inbuilt magnet to trap small metallic particles MATERIAL OF CONSTRUCTION Component Diffuser body Body cover Permanent strainer (3 mm perforations) Startup strainer (fine mesh) Guide vane (flow straightening vane) Body cover 'O' ring Material / /ANSI 2 Cast iron Ductile iron Ductile iron Ductile iron Stainless steel AISI 304 Stainless steel AISI 304 Galvanized steel Galvanized steel Stainless steel AISI 304 Stainless steel AISI 304 EPDM EPDM 4
TYPICAL INSTALLATION Suction Diffuser Suction Diffuser ENDSUCTION CLOSE COUPLED MOTOR PUMP VERTICAL INLINE PUMP Suction Diffuser Suction Diffuser ENDSUCTION PUMP COUPLED WITH MOTOR ON BASE FRAME HORIZONTAL SPLIT CASE PUMP 5
TYPE KEY LSD 65 2A Type range System connection size Pump connection size Pressure rating LSD = Lubi Suction diffuser = mm 65 = 65 mm 80 = 80 mm 100 = 100 mm 1 = 1 mm 1 = 1 mm 200 = 200 mm 2 = 2 mm = mm 3 = 3 mm = mm 65 = 65 mm 80 = 80 mm 100 = 100 mm 1 = 1 mm 1 = 1 mm 200 = 200 mm 2 = 2 mm = mm 3 = 3 mm 1 = (1 psi) 2A = (16 bar) 2B = ( bar) 3 = ANSI 2 (2 psi) PRESSURE vs TEMPERATURE RATINGS Temperature ( C) 3 10 38 66 93 121 149 24 Maximum total working pressure (psi) 2 200 1 100 Class in accordance with DIN standard EN 10922 / Class 2# in accordance with ANSI Standard B16.1 Class in accordance with DIN standard EN 10922 / Class 1# in accordance with ANSI Standard B16.1 21 17 14 10 7 Maximum total working pressure (bar) 0 0 0 100 1 200 2 Temperature ( F) 6
PRESSURE DROP CHART 10000 9000 8000 7000 6000 00 4000 0 2000 x x 2 2 x 2, x 200 2 x 200 200 x 200 200 x 1 1 x 1 1 x 1 Flow rate (USgm) 1000 900 800 700 600 0 400 200 1 x 1, 1 x 100 1 x 100 100 x 100 100 x 80 80 x 80 80 x 65 65 x 65, 80 x 65 x x x 40 100 90 80 70 60 40 30 20 10 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.80.91 2 3 4 5 6 7 8 9 10 Pressure loss (psi) 7
TECHNICAL DATA B FROM SYSTEM E D TO PUMP F J A G C (SPACE TO REMOVE STRAINER) Type Flange size [mm] Flange size [inch] Pump side System side Pump side LSD LSD 65 65 2 LSD 80 80 LSD 6565 65 65 LSD 8065 80 2½ LSD 8080 80 80 LSD 10080 100 3 LSD 100100 100 LSD 1100 100 1 4 LSD 1100 1 LSD 11 1 1 LSD 11 1 5 LSD 11 1 1 LSD 2001 200 6 LSD 200200 200 200 LSD 2200 2 8 LSD 22 2 2 LSD 2 10 LSD LSD 3 3 12 Note: All dimensions in mm unless otherwise noted. See page 9 to 11 for Flange dimensions. System side 2 2½ 3 2½ 3 3 4 4 5 6 5 6 6 8 8 10 10 12 12 14 Strainer free area [sq.inch] 35 35 35 35 35 88 88 88 114 114 162 162 270 270 475 475 780 780 A 228 228 228 241 241 267 267 315 315 315 360 360 448 448 545 545 629 629 762 762 Dimensions [mm] B C D E F 127 127 127 140 140 152 152 178 178 178 204 204 267 267 330 330 368 368 457 457 2 2 2 275 275 3 3 3 375 375 4 4 5 5 600 600 700 700 159 159 159 159 159 178 178 203 203 203 230 230 279 279 330 330 368 368 457 457 110 110 110 110 110 1 1 138 138 138 166 166 188 188 2 2 7.5 7.5 334.5 334.5 1/2" NPT 1/2" NPT 1/2" NPT 1/2" NPT 1/2" NPT 3/4" NPT 3/4" NPT 3/4" NPT 3/4" NPT 3/4" NPT G 32 32 32 32 32 J 161.5 161.5 161.5 174.5 174.5 183.5 183.5 232 232 232 268 268 345 345 441 441 472 472 584 584 Gross weight [kg] 20 21.5 23.5 23 32 34 45 46 48 61 65 85 91 144 1 197 205 342 355 8
FLANGE DIMENSIONS Flange size Figure Rating A B C x Nos. of holes Ø165 Ø1 Ø102 Ø18 x 4 mm (2 inch) Ø165 Ø1 Ø1 Ø121 Ø102 Ø18 x 4 Ø3/4 x 4 ANSI 2 Ø165 Ø127 Ø106 Ø3/4 x 8 Ø185 Ø145 Ø122 Ø18 x 4 65 mm (2½ inch) Ø185 Ø180 Ø145 Ø140 Ø122 Ø18 x 8 Ø3/4 x 4 ANSI 2 Ø190 Ø149 Ø1 Ø200 Ø160 Ø138 Ø18 x 8 80 mm (3 inch) Ø200 Ø190 Ø160 Ø152 Ø138 Ø18 x 8 Ø3/4 x 4 ANSI 2 Ø210 Ø168 Ø144 Ø235 Ø180 Ø158 Ø18 x 8 100 mm (4 inch) Ø235 Ø230 Ø190 Ø191 Ø158 Ø22 x 8 Ø3/4 x 8 ANSI 2 Ø5 Ø200 Ø176 9
FLANGE DIMENSIONS Flange size Figure Rating A B C x Nos. of holes Ø270 Ø210 Ø188 Ø18 x 8 1 mm (5 inch) Ø270 Ø5 Ø220 Ø216 Ø188 Ø x 8 ANSI 2 Ø280 Ø235 Ø211 Ø Ø240 Ø212 Ø22 x 8 1 mm (6 inch) Ø Ø280 Ø2 Ø241 Ø212 Ø x 8 ANSI 2 Ø320 Ø270 Ø246 Ø7/8 x 12 Ø360 Ø295 Ø268 Ø22 x 12 200 mm (8 inch) Ø360 Ø345 Ø310 Ø299 Ø268 Ø x 12 ANSI 2 Ø380 Ø330 Ø303 Ø11/8 x 12 Ø4 Ø355 Ø320 ØX12 2 mm (10 inch) Ø4 Ø405 Ø370 Ø362 Ø320 Ø29X12 Ø1 X12 ANSI 2 Ø445 Ø387 Ø357 Ø11/4 X16 10
FLANGE DIMENSIONS Flange size Figure Rating A B C x Nos. of holes Ø485 Ø410 Ø378 ØX12 mm (12 inch) Ø485 Ø485 Ø430 Ø432 Ø378 Ø29X16 Ø1 X12 ANSI 2 Ø520 Ø451 Ø418 Ø11/4 X16 Note: All dimensions in mm unless otherwise noted. 11
LUBI INDUSTRIES LLP Lubi Industrial Park, VadsarKhatraj Road, Vadsar, TalKalol, Dist.Gandhinagar. 382 721. INDIA. Tel.: # 917930610100, Fax : # 917930610. Sales Enquiries: mktsales@lubipumps.com, expsales@lubipumps.com Product Improvement is a continuous process at LUBI. The data given in this publication is therefore subject to revision. Toll Free Service Hotline : 1800 0 3055