Table of Contents
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1.
Type identification ........................................................................................................................... 2
1.1
Nameplate ............................................................................................................................................................2
1.2
Type key...............................................................................................................................................................2
2.
Spare parts ....................................................................................................................................... 4
2.1
SR (A), (B), (C) and (F) ........................................................................................................................................4
2.2
SR (D), (E) and (G) ..............................................................................................................................................6
2.3
SF (H) and (I) .......................................................................................................................................................8
3.
Torques and lubricants ................................................................................................................. 10
4.
Dismantling and assembly............................................................................................................ 11
4.1
General information............................................................................................................................................11
4.2
SR (0.75 to 3.0 hp) .............................................................................................................................................11
4.3
SR (5.0 to 25 hp) and SF ...................................................................................................................................12
US
96617764 0406
Service instructions
SR, SF
60 Hz
1/3~
12
1 / 12
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Summary of Contents for Grundfos SR
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Page 1: Table Of Contents
SR (D), (E) and (G) ..............................6 SF (H) and (I) ...............................8 Torques and lubricants ......................... 10 Dismantling and assembly......................11 General information............................11 SR (0.75 to 3.0 hp) .............................11 SR (5.0 to 25 hp) and SF ...........................12 1 / 12 96617764 0406... -
Page 2: Type Identification
Type SR-F-20-16-B-2-60-BBVE-A A 96292383 05 32 Model 3500 GPM H Feet F° max Fig. 1 Example of SR, SF nameplate Pos. Description Pos. Description Type designation Rated rpm Model, material number Rated motor hp and production code Rated flow Max. operating pressure Head in feet at rated flow Max. - Page 3 B Cast iron construction with bronze impeller L Cast iron construction with brass impeller Mechanical seal The code for shaft seal always consists of four letters. Example Principal Grundfos type designation for shaft seal Material, rotating seal face Material, stationary seat Material, secondary seal Pos.
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Page 4: Spare Parts
2. Spare parts 2.1 SR (A), (B), (C) and (F) 2.1.1 Drawing 4 / 12... - Page 5 Flow - head 22-20 15-11, 18-12, 20-16 Pos. Description / kit no. 96591471 96591474 96591471 96591470 96591471 Staybolts Hexagon head screw Impeller kit - SR (A) Cast iron Bronze Flow - head 8-13 8-17 8-23 10-13 10-17 10-21 Impeller size 102 mm...
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Page 6: Sr (D), (E) And (G)
2.2 SR (D), (E) and (G) 2.2.1 Drawing 6 / 12... - Page 7 30-47, 40-60, 40-75 40-90 Pos. Description / kit no. 96591474 96591472 96591474 96591472 96591475 96591476 Staybolts Hexagon head screw Impeller kit - SR (D) Cast iron Bronze Flow - head 40-21 50-27 50-37 50-49 40-21 50-27 50-37 50-49 Impeller size...
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Page 8: Sf (H) And (I)
2.3 SF (H) and (I) 2.3.1 Drawing 8 / 12... - Page 9 2.3.2 Service kits Bolt kit Volute casing size Flow - head 55-15 60-23, 70-27,70-41 60-11 65-20, 75-23, 80-34 Pos. Description / kit no. 96591474 96591472 96591474 96591472 Staybolts Hexagon head screw Impeller kit - SF (H) Cast iron Bronze Flow - head 55-15 60-23 70-27...
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Page 10: Torques And Lubricants
3. Torques and lubricants This section shows the screws and nuts to be tightened to a certain torque, and the lubricants to be used. Pos. Description Number Dim. Torque [lbs/ft] Torque [Nm] Lubricant Impeller nut 7/16" UNF 3/8" UNC Impeller screw 1/2"... -
Page 11: Dismantling And Assembly
During assembly: • Lubricate and tighten screws and nuts to correct torque as stated in section 3. Torques and lubricants. 4.2 SR (0.75 to 3.0 hp) 4.2.1 Dismantling 1. Remove the screws fixing the motor to the foundation. 2. Remove the nuts (pos. 36). -
Page 12: Sr (5.0 To 25 Hp) And Sf
4.3 SR (5.0 to 25 hp) and SF 4.3.1 Dismantling 1. Remove the screws fixing the motor to the foundation. 2. Remove the nuts (pos. 36). 3. Pull out the motor including pump head and impeller out of the pump housing (pos. 6).
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