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2014 EDITION 

Reciprocating metering pump  

with hydraulic diaphragm 

US

E AND 

MAINTE

NANCE M

AN

UAL 

 

PU

MPING 

HE

ADS

 

 
 
 

ATTENTION:  

Industrial machinery for professional use.  
These instructions are for qualified personnel 

 

Translation of the 
original instructions

 

EN 

METERING PUMP  
WITH SPRING RETURN

 

SR Series 

mod. B  HYDRAULIC 

DIAPHRAGM 

 

B 125N 

 

B 175N 

 

B 250N

 

 

 
 
 
 
 
 

Summary of Contents for B 125N-12

Page 1: ... AND MAINTENANCE MANUAL PUMPING HEADS ATTENTION Industrial machinery for professional use These instructions are for qualified personnel Translation of the original instructions EN METERING PUMP WITH SPRING RETURN SR Series mod B HYDRAULIC DIAPHRAGM B 125N B 175N B 250N ...

Page 2: ...CHNICAL DATA 4 2 1 Technical data of pump 4 2 2 Sound vibration emitted by the pump 6 3 OPERATIONS TO BE PERFORMED ON THE HEAD 6 3 1 Periodical check of head 6 3 2 Troubleshooting 7 3 3 Head disassembly and diaphragm replacement 8 3 4 Piston disassembly and re assembly 9 3 5 Filling of oil chamber 9 3 6 Routine maintenance 10 ...

Page 3: ...ance of the heads hydraulic part of the hydraulic diaphragm spring return metering pumps model B 125N B 175N B250 N This manual is supplied together with the SR series pumps model A B BR SD D use and maintenance manual to be consulted for any further information and which contains the CE declaration of conformity 1 1 1 ...

Page 4: ...l h B 125N 8 1 5 1 8 2 4 3 3 20 10 50 AB 3 AC 3 1 2 B 125N 12 2 7 3 2 4 5 5 4 7 4 9 9 AB 3 AC 3 1 2 B 125N 18 6 6 7 9 11 13 2 18 22 22 70 AB 5 AC 4 1 2 B 125N 25 12 6 15 1 21 25 2 34 42 42 AB 5 AC 5 1 2 B 125N 30 18 21 6 30 36 49 60 60 14 20 AB 6 AC 8 1 2 B 125N 40 32 5 39 54 65 89 108 108 8 13 2 8 10 90 AB 8 AC 8 1 2 Characteristic data Model B 175N FREQUENCY Hz 50 60 50 60 50 60 Max pressure bar...

Page 5: ... 60 ND AB 3 1 2 B 125N 18 6 6 7 9 11 13 2 18 22 22 40 60 70 AB 5 1 2 B 125N 25 12 6 15 1 21 25 2 34 42 42 ND 34 AB 5 1 2 B 125N 30 18 21 6 30 36 49 60 60 ND 23 AB 6 1 2 Characteristic data Model AP B 175N FREQUENCY Hz 50 60 50 60 50 60 Max pressure bar Kg cm 2 Diaphragm Valves REDUCTION RATIO F 1 20 C 1 14 5 B 1 11 5 AISI 316 Ø mm AISI Att Ø STROKES min 1 70 84 96 116 120 0 25 kW 0 37 kW Type G m ...

Page 6: ... ON THE HEAD Periodical check of the head Failures or malfunctions may occur due to negligence leading to extraordinary maintenance proceeding with a periodical visual check as described in the SR REDUCER manual preventive maintenance chapter It is at times possible to avoid the arising of situations that require extraordinary maintenance In the presence of these anomalies we recommend readily int...

Page 7: ...tion dampener 4 incorrectly connected motor Check the motor plate again for the correct wiring sequence Check the phases 5 dirty pump valves Inspect valve units Clean or replace the components if necessary 6 Oil leaks through the filler and drain caps Loose caps or damaged gaskets to be replaced 7 Damaged piston seal gasket Air inlet in oil chamber through piston seals Scratched piston Replace the...

Page 8: ...equested The pumped liquid is mixed with hydraulic chamber oil The diaphragm is broken Assess the state of the components if damaged Replace the diaphragm and any OR the oil chamber the piston the seal gaskets Run the filling procedure HEAD DISASSEMBLY AND DIAPHRAGM REPLACEMENT In this pump model the head is directly blocked on the oil chamber therefore the oil contained in the chamber must be dra...

Page 9: ... taking care to tighten the two dowels with the same force so that the piston is coaxial with the slide FILLING OF OIL CHAMBER Once the maintenance operations are complete and the head components reassembled fill the oil chamber The following tables feature some brands and necessary quantities For proper operation proceed as follows Turn the adjusting knob clockwise to bring the piston to FDC at 0...

Page 10: ...2 Mobil DTE 24 Before starting the pump the operator must check that the plant shut off valves previously closed for maintenance are opened ROUTINE MAINTENANCE ref UNI 11063 The table shows the parts subject to greater wear which therefore require routine maintenance We recommend verification and replacement if necessary Components to be checked Maintenance period Oil chamber Head Valve unit Hydra...

Page 11: ...DOSEURO XMPE0TMB125SST014 11 12 1st Edition 2014 NOTES ...

Page 12: ...IES Request them to our Sales Department Doseuro S r l The Right Dosing Choice Via G Carducci 141 20093 Cologno Monzese Mi Italy Tel 39 0227301324 Fax 39 0226700883 http www doseuro com e mail info doseuro it ETA Ekipman Teknoloji Ar Sis San Tic Ltd Şti www etaekipman com blog etaekipman com Tel 0 216 540 99 64 Fax 0 216 540 99 68 ...

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