Liquid ring vacuum pumps - contvac.com

1 Liquid ring vacuum pumps two stage LPH 45008, LPH 45311, LPH 45316. Pressure range: 33 to 1013 mbar Suction volume flow: 55 to 258 m /h CONSTRUCTION TYPE. Sterling SIHI Liquid ring vacuum pumps are displacement pumps of uncomplicated and robust construction with the following particular features: non polluting due to a nearly isothermal compression oil-free, as no lubrication in the working chamber handling of nearly all gasses and vapours small quantities of entrained Liquid can be handled easy maintenance and reliable operation low noise and nearly free from vibration wide choice of material, therefore applicable nearly anywhere protection against cavitation as standard incorporated dirt drain no metallic contact of the rotating parts The Sterling SIHI Liquid ring vacuum pumps LPH 45008, LPH 45311. and LPH 45316 are two stage pumps . The pumps LPH 45008 and LPH 45316 can be applied without modification as compressors (see catalogue part K).

2 NOTE. During the operation the pump must continuously be supplied with APPLICATION service Liquid , normally water, in order to eliminate the heat resulting from the gas compression and to replenish the Liquid ring , because Handling and exhausting of dry and humid gases; entrained Liquid can part of the Liquid is leaving the pump together with the gas. This Liquid be handled during normal duty. The pumps are applied in all fields can be separated from the gas in a Liquid separator (see catalogue part where a pressure of mbar must be created by robust vacuum accessories). pumps . It is possible to reuse the service Liquid . The pumps are with a device Fields of application are for example: by which the contaminated service Liquid can be drained during chemistry and pharmacy for distilling and degassing, operation (dirt drain), if necessary. electric industry for impregnation and drying The direction of the rotation is clockwise, when looking from the drive plastics industry for degassing etc.

3 On the pump. GENERAL TECHNICAL DATA. Pump type unit LPH 45008 LPH 45311 LPH 45316. Speed 50 Hz 1450. rpm 60 Hz 1740. Max. compression over pressure bar 1,5. Max. admissible difference bar 1,5 1,5 1,2. Hydraulic test (over pressure) bar 4. Moment of inertial of the rotating parts . kg m 0,05 0,063 0,09. and of the water filling Sound pressure level 65. at a suction of 80 mbar dB (A). Min. pulley diameter permissible in case of V-belt drive mm 160. Max. gas temperature dry C 120. saturated C 100. Service Liquid : max. admissible temperature C 100. max. viscosity mm /s 90. max. density kg/m 1200. volume up to shaft liter 4 5,5 7. Max. flow resistance of the heat exchanger bar 0,2. The combination of several limiting values is not admissible. vacuum TECHNOLOGY LPH LII 3. E 10/00. Material design MATERIAL DESIGN. Item COMPONENTS 01 02 42. 0001, 0002 Casing 0035, 0036 Central body 0010, 0011, Guide disk 0012, 0013. 0030, 0031 Vane wheel impeller 0200 Shaft 0500, 0600 mechanical seal Cr-steel / carbon / Perbunan Cr Ni Mo-steel / carbon / Viton 0400 Gland packing soft packing - Sectional drawing LPH 45008, LPH 45311, LPH 45316.

4 * not existing at LPH 45008. 2. Suction volume flow and power absorption LPH 45008. 150. 1740 rpm m /h 1450 rpm suction volume flow 100. 50. LPH 45008. 0. 10 40 60 80 100 200 400 mbar 1000. suction pressure 4. kW 1740 rpm power absorption 3. 1450 rpm 2. 1. LPH 45008. 0. 10 40 60 80100 200 400 mbar 1000. suction pressure The operating data are applicable under the following conditions: pumping medium: - dry air: 20 C. - water vapour saturated air: 20 C. service Liquid : - water: 15 C. Compression pressure 1013 mbar (atmospheric pressure). The suction volume flow is applied to the suction pressure Tolerance of the operating data 10%. Max. fresh water need with lowest suction pressure 3. Suction volume flow and power absorption LPH 45311. 200. m /h 1740 rpm suction volume flow 150. 1450 rpm 100. LPH 45311. 50. 10 40 60 80 100 200 400 mbar 1000. suction pressure 5. kW. 4 1740 rpm power absorption 3. 1450 rpm 2. 1. LPH 45311.

5 0. 10 40 60 80100 200 400 mbar 1000. suction pressure The operating data are applicable under the following conditions: pumping medium: - dry air: 20 C. - water vapour saturated air: 20 C. service Liquid : - water: 15 C. Compression pressure 1013 mbar (atmospheric pressure). The suction volume flow is applied to the suction pressure Tolerance of the operating data 10%. Max. fresh water need with lowest suction pressure 4. Suction volume flow and power absorption LPH 45316. 300. m /h 1740 rpm suction volume flow 200. 1450 rpm 100. LPH 45316. 0. 10 40 60 80 100 200 400 mbar 1000. suction pressure 8. kW. 6. power absorption 1740 rpm 4. 1450 rpm 2. LPH 45316. 0. 10 40 60 80 100 200 400 mbar 1000. suction pressure The operating data are applicable under the following conditions: pumping medium: - dry air: 20 C. - water vapour saturated air: 20 C. service Liquid : - water: 15 C. Compression pressure 1013 mbar (atmospheric pressure).

6 The suction volume flow is applied to the suction pressure Tolerance of the operating data 10%. Max. fresh water need with lowest suction pressure 5. Dimension table LPH 45008, LPH 45311, LPH 45316. only in case of LPH 45008. N1 = gas-inlet DN 40. N2 = gas-outlet DN 40. uB = connection for service Liquid G . uc = connection for protection against cavitation G 1/8. ue = drain connection G . ul = connection for vent cock G . um = connection for pressure gauge G . um1 = connection for drain valve G . weight a c f m1 m2 o3 q1 q2 abt. kg LPH 45008 BN 001 239 130 199 353 299 585 169 178 62. 135 184 555 154 163. LPH 45311 BN 001 269 160 199 383 329 615 169 178 77. 135 184 585 154 163. LPH 45316 BN 001 339 210 199 453 399 685 169 178 86. 135 184 655 154 163. flange connection to DIN 2501 PN 10. DN 40. k 110. D 150. number x d2 4 x 18. 6. Arrangement drawing LPH 45008, LPH 45311, LPH 45316 with overhead Liquid separator N1 = gas-inlet DN 40.

7 N2 = gas-outlet DN 50. uA = connection for Liquid drain G 1. uF = connection for fresh Liquid 18. uc = connection for protection against cavitation G 1/8. electric motor 50 Hz weight 2). size kW b d e1 e2 e4 h1 h2 h4 h5 h7 l l1 l2 l3 m m4 o1 * w1* abt. kg IP 55 EEx e ll T3. LPH 100 L 3 - 360 540 140 320 877 820 70 309 127 40 77 363 951 130. 45008 112 M - 3,6 19 385 117 65 592 380 968 140. LPH 112 M 4 - 390 600 160 350 997 920 369 998 165. 45311 132 S - 5 100 129 70 47 1103 205. LPH 132 S 5,5 - 450 24 660 180 400 1012 400 132 80 607 1020 439 485 1173. 45316 132 M - 6,8 240. flange connections to DIN 2501 PN 10. DN 40 50. k 110 125. D 150 165. number x d2 4 x 18 4 x 18. * dimension depend on the motor make 1). not existing at LPH 45008. 2). dimension of design with mechanical seal (design 135) shorter by 30mm 7. Arrangement drawing LPH 45008, LPH 46311, LPH 45316 with upright Liquid separator N1 = gas-inlet DN 40.

8 N2 = gas-outlet DN 50. uA = connection for Liquid drain G 1. uc = connection for protection against cavitation G 1/8. ue1 = drain connection G . uF = connection for fresh Liquid 18. electric motor 50 Hz weight 2). size kW b d e1 e2 e4 h2 h5 l l1 l2 l4 m m4 o1 * w1* w2 abt. kg IP 55 EEx e ll T3. LPH 100 L 3 - 360 540 140 320 820 70 309 134 40 77 363 951 722 150. 45008 112 M - 3,6 19 385 65 380 968 160. LPH 112 M 4 - 390 600 160 350 920 369 164 998 736,5 180. 45311 132 S - 5 100 70 47 1103 220. LPH 132 S 5,5 - 450 24 660 180 400 400 80 1020 439 234 485 1173 766,5. 45316 132 M - 6,8 255. flange connections to DIN 2501 PN 10. DN 40 50. k 110 125. D 150 165. number x d2 4 x 18 4 x 18. * dimensions depend on the motor make 1). not existing at LPH 45008. 2). dimension of design with mechanical seal (design 135) shorter by 30mm 8. Fresh water requirements in [m /h] dependent on suction pressure, speed, mode of operation and difference in temperature suction pressure 33 120 200 400.

9 [mbar]. KB KB KB KB. pump type speed difference in FB difference in FB difference in FB difference in FB. temperature [ C] temperature [ C] temperature [ C] temperature [ C]. [rpm] 10 5 2 10 5 2 10 5 2 10 5 2. LPH 45008 1450 0,17 0,28 0,48 0,17 0,28 0,46 0,18 0,29 0,46 0,18 0,28 0,43. 1750 0,23 0,36 0,56 0,9 0,22 0,35 0,53 0,8 0,22 0,34 0,51 0,75 0,22 0,33 0,46. LPH 45311 1450 0,19 0,31 0,51 0,20 0,32 0,50 0,21 0,33 0,50 0,21 0,31 0,45 0,65. 1750 0,24 0,38 0,59 0,25 0,38 0,55 0,26 0,38 0,54 0,25 0,36 0,49. LPH 45316 1450 0,24 0,38 0,61 1,0 0,25 0,40 0,60 0,9 0,27 0,40 0,59 0,85 0,25 0,36 0,49. 1750 0,30 0,47 0,69 0,31 0,47 0,65 0,32 0,47 0,64 0,30 0,41 0,53. FB = fresh Liquid requirements KB = combined Liquid service water 10 C, 5 C, 2 C warmer than the fresh water. Data regarding the pump size - order hints series +. bearing + direction of rotation shaft sealing material design casing seal size 01 main parts GG.

10 Two grease lubricated 001 single gland packing B antifriction bearing 02 main parts GG. mechanical seal without non-ferrous 0 Liquid seal one shaft end clockwise 135 with built-in flushing metal N rotating O-rings Perbunan 42. main parts Cr Ni Mo-cast steel 45008. LPH 45311 BN 001, 135 01, 02, 42 0. 45316. Design - Motor selection table construction electric motor 50 Hz type pump with free shaft end 01 motor protection IP 55 motor protection EEx e ll T3. pump with couplings, rough-drilled at motor side 04 kW size designation kW size designation as above, but with motor, 3,0 100 L LB 3,6 112 M MK. 4,0 kW three phase motor VB 4,0 112 M MB 5,0 132 S NK. (50 Hz, 400 V ) at 1450 rpm 5,5 132 S NB 6,8 132 M PK. Example for ordering: The pump size LPH 45311 BN 135 02 0 with 4,0 kW three phase motor (50 Hz, 400 V ) 1450 rpm is the complete order number: LPH 45311 BN 135 02 0 MB. Motor: If motors with the other voltage and frequency are required a special information should be given.