Side Channel pumps Self-priming, segmental type AO 111 363 Technical data Capacity: from,2 up to 7,5 m³/h Delivery head: from 6 up to 1 m Speed: 15 rpm (max. 18 rpm) Temperature: max. 12 C Casing pressure: PN 1 Shaft sealing: stuffing box Flange connections: British standard pipe thread (BSP) in counter flanges Direction of rotation: clockwise (when seen from the drive end) Application The Sterling SII AO pump is a self-priming side channel pump capable of handling gas along with the medium and operates at a low noise level. The AO is used when clear or turbid liquids without any abrasive particles are to be handled reliably and trouble-free. The performance curve steepness admits a precise regulation of the pressure with a small change in capacity. The AO is used in domestic plants and agriculture for; Irrigation, Drainage, Sprinkling. The AO is well known in all branches of trade or industry for; Boosting pressure, Cooling water, Water circulating, Boiler feeding, Condensate, Cleaning plants, Ship yards. Design Pumps of the series AO have a segmental type construction with open vane wheel impellers. The program comprises sizes with up to stages for the sizes 11/12 and up to 3 stages for the sizes 31/36. The performance curves of the AO are identical for all material designs. The applied hydraulic components are from our Modular Side Channel system (interchangeability of parts). Construction Casing pressure Maximum 1 bar from C up to +12 C. Please observe Technical rules and safety regulations: Casing pressure = inlet pressure + delivery head at minimum pump capacity. Position of branches Suction and delivery branch point radially upwards. Flanges The oval flanges correspond to SII standard PN 1. Counter flanges are provided with female pipe thread. They are supplied together with the pump including joints, screws and nuts. Bearing One grease lubricated ball bearing according to DIN 625 and one liquid surrounded sleeve bearing (design A). The first grease filling is done in the factory. Direction of rotation Clockwise, when looking at the pump from the drive end. Anti-clockwise is possible. Shaft sealing The shaft is sealed by a stuffing box. Mechanical seal design upon request. Sterling Fluid Systems Pumping Technology AO- / 23
Material design AO Pos 16 17 19 11 111 21 235 21 Components Suction casing Discharge casing Intermediate piece Shaft Vane wheel impeller Bearing bush Material design A B 2 3B EN-GJL-25 EN-GJL-25 GC-Cu Sn 12 EN-GJL-25 G-Sn Bz 16 X 2 Cr 13 X 5 CrNiMo 17 12 2 CuZn Al 2 G-X 3 CrNiMoCu 26 6 3 3 G-Cu Sn Chrome plated EK 223 Casing seal The casing can be sealed with a liquid sealing compound or soft Teflon. Drive By electric motor, type of construction IM B3. Up to 1,1 kw - according to requirements - three-phase A.C. or alternating current can be chosen. General comments Side Channel pumps with the same hydraulic construction are manufactured in series as: AK Medium duty pump, PN 16 CE igh duty pump, PN Also available with magnetic coupling CEB Vertical tank mounted pump, PN 25 with magnetic CEV coupling Vertical tank mounted pump, PN 25 with mechanical seal (replacement for CVGP) AE igh duty pump, PN Also available with magnetic coupling Technical documentation about these pump series will be readily supplied on request. Sectional drawing and parts list AO (typical) 723 235 16 11 17 Pos. Components 21 Bearing bush 16 Suction casing 17 Discharge casing 19 Suction intermediate piece 11 Discharge intermediate piece 111 Discharge intermediate piece 21 Shaft 235 Vane wheel impeller 61 Stuffing box 723 Counter flange 21 111 19 61 21 All possible design combinations can be found in the delivery program Sterling Fluid Systems Pumping Technology AO- / 23 Page 2 / 8
Performance range AO General conditions Liquid: Density: Viscosity: Temperature: Atmospheric pressure: Water 1 kg/dm 3 1 cst 2 C 113 mbar Characteristic tolerances Capacity ± 1% - Delivery head ± 1% - Power + 1% Measuring standard According to ISO 5198 n = 15 rpm 1 8 6 11 12 31 36 2,2,5 1 2 3 5 6 7 8 Q Sterling Fluid Systems Pumping Technology AO- / 23 Page 3 / 8
Dimension chart, Pump set drawing and Performance curves AO 11 1 8 6 11 113 15 rpm o a 15 3 w 112 111 2 86 5 P (kw) 1, 11 f1 v e1 w1 G1'',8 113,6, 112 111 9 12j5,2 NPS 2, 1,8 1,6 1,,2,,6,8 1, 1,2 1, 1,6 Q h3 d 36 12 156 e2 b2 13 12 9 c 15 General: Characteristic tolerance: Values are valid for water ρ = 1 kg/dm 3 and ν = 1 cst. Capacity ± 1% - Delivery head ± 1% - Power + 1%. Pump Motor Base Coupling Weight size kw size plate pump set a b2 c d e1 e2 v f1 h3 o w* w1 111.37 71 P3 B68 9 26 78 262 2 15 27 23 1 18 125 118 56 7.37 71 27 5 112 P3 B68 1 112 262 2 15 27 23 1 18 125 152 7.55 8 3 57.55 8 32 P3 262 27 23 68 7.75 8 33 113 B68 12 16 2 15 1 18 125 186 1.1 9S P6 39 312 32 28 666 52 1.5 9L 1.75 8 P3 35 262 27 23 62 7 11 1.1 9S B68 1 1 18 2 15 1 18 125 22 P6 312 32 28 7 52 1.5 9L 3 * Dimensions depend upon the motor brand. The weight of the pump will be approximately 13% higher when using Bronze. Sterling Fluid Systems Pumping Technology AO- / 23 Page / 8
Dimension chart, Pump set drawing and Performance curves AO 12 1 8 123 12 15 rpm o a 15 3 w 6 122 121 86 2 5 P (kw) 1,2 123 12 f1 v e1 w1 G1'',8, 122 121 9 12j5 NPS 3 2 1,,8 1,2 1,6 1,8 Q 2, h3 d 36 12 156 e2 b2 13 12 9 c 15 General: Characteristic tolerance: Values are valid for water ρ = 1 kg/dm 3 and ν = 1 cst. Capacity ± 1% - Delivery head ± 1% - Power + 1%. Pump Motor Base Coupling Weight size kw size plate pump set a b2 c d e1 e2 v f1 h3 o w* w1.37 71 26 56 121 P3 B68 9 78 262 2 15 23 27 1 18 125 118 7.55 8 29 5.55 8 3 122 P3 B68 1 112 262 2 15 23 27 1 18 125 152 57 7.75 8 31.75 8 P3 33 262 23 27 68 7 123 1.1 9S P6 B68 12 39 16 312 2 15 28 32 1 18 125 186 666 52 1.1 9S 1 12 P6 B68 1 18 312 2 15 28 32 1 18 125 22 7 52 1.5 9L 6 * Dimensions depend upon the motor brand. The weight of the pump will be approximately 13% higher when using Bronze. Sterling Fluid Systems Pumping Technology AO- / 23 Page 5 / 8
Dimension chart, Pump set drawing and Performance curves AO 31 1 8 312 313 15 rpm o a 167 w 6 311 16 2 7 P (kw) 2, 312 313 f1 v e1 w1 G1¼'' 1,5 1,,5 311 112 16j5 5 NPS 2, 1,5 h3 d 13 15 112 18 1,,5 1, 1, 1,8 2,2 2,6 3, 3, 3,8,2,6 Q 36 16 196 e2 b2 c General: Characteristic tolerance: Values are valid for water ρ = 1 kg/dm 3 and ν = 1 cst. Capacity ± 1% - Delivery head ± 1% - Power + 1%. Pump Motor Base Coupling Weight size kw size plate pump set a b2 c d e1 e2 v f1 h3 o w* w1 311.75 8 P5 3 282 27 25 58 7 B68 13 83 2 15 1 6 17 1 1.1 9S P6 1 312 32 28 62 52 312 1.1 9S P6 B68 1.5 9L 16 7 123 312 2 15 32 28 1 6 17 18 682 52 2.2 1L P7 B8 56 317 35 285 11 723 57 313 2.2 1L P7 B8 19 59 163 317 2 15 35 285 11 6 17 22 763 57 * Dimensions depend upon the motor brand. The weight of the pump will be approximately 13% higher when using Bronze. Sterling Fluid Systems Pumping Technology AO- / 23 Page 6 / 8
Dimension chart, Pump set drawing and Performance curves AO 36 8 6 363 362 15 rpm o a 167 w 361 2 16 7 P (kw) 3, 363 f1 v e1 w1 G1¼'' 2, 1, 362 361 112 16j5 5 NPS 3 2 1 3,5,,5 5, 5,5 6, 6,5 7, 7,5 8, Q h3 d 36 16 196 e2 b2 13 15 112 c 18 General: Characteristic tolerance: Values are valid for water ρ = 1 kg/dm 3 and ν = 1 cst. Capacity ± 1% - Delivery head ± 1% - Power + 1%. Pump Motor Base Coupling Weight size kw size plate pump set a b2 c d e1 e2 v f1 h3 o w* w1 361.75 8 P5 B68 13 3 83 282 2 15 27 25 1 6 17 1 58 7 1.1 9S P6 1 312 32 28 62 52 1.5 9L P6 B68 7 312 32 28 1 682 52 362 2.2 1L P7 16 123 2 15 6 17 18 B8 56 317 35 285 1 723 57 2.2 1L 59 763 363 3 1L P7 B8 19 6 163 317 2 15 35 285 1 6 17 22 57 112M 78 78 * Dimensions depend upon the motor brand. The weight of the pump will be approximately 13% higher when using Bronze. It is the policy of Sterling Fluid Systems to seek continually for ways to improve its products and the right is reserved to alter specifications at anytime without prior notice. Sterling Fluid Systems Pumping Technology AO- / 23 Page 7 / 8
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