USE AND MAINTENANCE MANUAL PUMPING HEADS ATTENTION: Industrial machinery for professional use. These instructions are for qualified personnel METERING PUMP WITH SPRING RETURN SR Series mod. B HYDRAULIC DIAPHRAGM B 125N B 175N B 250N EN Translation of the original instructions Reciprocating metering pump with hydraulic diaphragm 2014 EDITION
TABLE OF CONTENTS Ref. Title Page 1 PREFACE 3 1.1 General prescriptions 3 2 TECHNICAL 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 XMPE0TMB125SST014 2/12 1st Edition - 2014
1 1.1 PREFACE General prescriptions This manual refers to the use and maintenance 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. XMPE0TMB125SST014 3/12 1st Edition - 2014
2 TECHNICAL DATA Below are the tables with the technical data characteristic of each individual pump model. 2.1 Technical data of pump The pressures indicated in the tables must never be exceeded in order to avoid any kind of inconvenience. Should it be necessary to run the pump at a higher pressure, contact our technical department. The indicated flow rate value is subject to variations in view of the working pressure of the pumped liquid, the viscosity and the conditions of installation. The number of strokes per minute is calculated with 4-pole motors (~1400 rpm) Characteristic data Model B 125N FREQUENCY Max. pressure 50 60 50 60 50 60 50 60 Diaphragm - Valves Hz bar (Kg/cm 2 ) REDUCTION I (1:40) F (1: 24) C Att. B (1:12) AISI PVC AISI PVC RATIO (1:14,5) Ø Ø STROKES 0.18 0.25 0.18 0.25 mm 35 42 58 70 96 116 116 / Type Type G.m. min/1' kw kw kw kw B 125N - 8 / / 1.5 1.8 2.4 3 3 / AB 3 AC 3 1/2" 50 B 125N - 12 2.7 3.2 4.5 5.4 7.4 9 9 / AB 3 AC 3 1/2" 20 - B 125N - 18 6.6 7.9 11 13.2 18 22 22 / 10 - AB 5 AC 4 1/2" B 125N - 25 12.6 15.1 21 25.2 34 42 42 / 70 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" Flow rate l/h Characteristic data Model B 175N FREQUENCY Max. pressure 50 60 50 60 50 60 Hz bar (Kg/cm 2 ) Diaphragm - Valves REDUCTION F (1:20) C B Att. (1:14,5) AISI PVC AISI PVC RATIO (1:11.5) Ø Ø mm STROKES 0.25 0.37 0.25 0.37 70 84 96 116 120 / Type Type G.m. min/1' kw kw kw kw B 175N - 8 2.6 3.12 3.5 4.2 4.4 / AB 3 AC 3 1/2" 50 B 175N - 12 7.6 9.12 10.4 12.4 13 / AB 3 AC 3 1/2" B 175N - 18 18 21.6 24 28.8 32 / 20 - AB 5 AC 4 1/2" 10 B 175N - 25 36 43.2 49 58.8 61 / 70 AB 6 AC 5 1/2" B 175N - 30 51 61.2 69 82.8 88 / AB 6 AC 8 1/2" B 175N - 40 92 110.4 126 151.2 158 / 12 20 90 AB 8 AC 8 1/2" B 175N - 50 144 172.8 197 236.4 247 / 7.5 11 7.5 10 AB 11 AC 11 3/4" B 175N - 55 174 208.8 238 285.6 299 / 6.3 11 6.3 10 120 AB 13 AC 13 3/4" B 175N - 65 243 291.6 333 399.6 418 / 4.5 7.8 4.5 7.8 AB 13 AC 13 3/4" Flow rate l/h ATTENTION! XMPE0TMB125SST014 4/12 1st Edition - 2014
Flow Flow rate l/h DOSEURO Characteristic data Model B 250N FREQUENCY Hz 50 60 50 60 50 60 Max. pressure bar (Kg/cm 2 ) Diaphragm - Valves REDUCTION Att. F (1:25) C (1:14,5) B (1:12,5) AISI PVC AISI PVC RATIO Ø Ø STROKES 0.55 0.75 0.55 0.75 mm 56 67 96 116 112 / min/1' kw kw kw kw Type Type G.m. B 250N - 40 105 126 180 216 210 / 11 - AB 11 AC 11 3/4" B 250N - 50 165 198 282 338 330 / 11-10 - 120 AB 13 AC 13 3/4" B 250N - 55 200 240 342 410 400 / 11 - AB 13 AC 13 3/4" B 250N - 65 278 333.6 476 571.2 556 / 9-9 - AB 17 AC 17 1" B 250N - 75 371 445.2 636 763.2 742 / 6.6 8.7 6.6 8.7 160 AB 22 AC 22 1" B 250N - 90 534 640.8 915 1098 1068 / 4.7 6.2 4.7 6.2 AB 22 AC 22 1" Flow rate l/h Characteristic data Model AP - B 125N FREQUENCY Hz 50 60 50 60 50 60 50 60 Max. pressure Diaphragm - Valves bar (Kg/cm 2 ) REDUCTION RATIO I (1:40) F (1: 24) C (1:14,5) B (1:12) AISI Att. Ø AISI 316 Ø mm STROKES min/1' 35 42 58 70 96 116 116 / 0.18 kw 0.25 kw Type G.m. B 125N - 8 / / 1.5 1.8 2.4 3 3 / 60 ND AB 3 1/2" 50 B 125N - 12 2.7 3.2 4.5 5.4 7.4 9 9 / 60 ND AB 3 1/2" B 125N - 18 6.6 7.9 11 13.2 18 22 22 / 40 60 AB 5 1/2" B 125N - 25 12.6 15.1 21 25.2 34 42 42 / ND 34 70 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. B 175N - 8 2.6 3.12 3.5 4.2 4.4 / 60 ND AB 3 1/2" 50 B 175N - 12 7.6 9.12 10.4 12.4 13 / 60 ND AB 3 1/2" B 175N - 18 18 21.6 24 28.8 32 / 60 ND AB 5 1/2" B 175N - 25 36 43.2 49 58.8 61 / 37.5 53.5 70 AB 6 1/2" B 175N - 30 51 61.2 69 82.8 88 / ND 37 AB 6 1/2" B 175N - 40 92 110.4 126 151.2 158 / ND 20 90 AB 8 1/2" B 175N - 50 144 172.8 197 236.4 247 / ND 13 120 AB 11 3/4" Flow rate l/h Characteristic data Model AP - B 250N FREQUENCY Hz 50 60 50 60 50 60 Model B Diaphragm - Valves Max. pressure bar REDUCTION RATIO F (1:25) C (1:14,5) B (1:12,5) (Kg/cm 2 Ø AISI Att. Ø ) mm STROKES min/1' 56 67 96 116 112 / 0.55 kw 0.75 kw Type G.m. B 250N - 40 105 126 180 216 210 / 23.8 31 AB 11 3/4" B 250N - 50 165 198 282 338 330 / 15 20 120 AB 13 3/4" B 250N - 55 200 240 342 410 400 / ND 16 AB 13 3/4" B 250N - 65 278 333.6 476 571.2 556 / ND 12 160 AB 17 1" rate l/h XMPE0TMB125SST014 5/12 1st Edition - 2014
2.2 SOUND VIBRATION EMITTED BY THE PUMP Below are the results of the phonometric measurements carried out on the series pumps. These tests were carried out by an external laboratory in compliance with Directives and Standards UNI EN ISO 3744:2009 and Directive ISO 2002/44/EC. Maximum sound emission on the surface Investigation table of phonometric pressure Model B 125N Condition of pressurised pump Average level of pressure on the surface. Level of sound power db(a) 71.7 db(a) 67.9 db(a) 71.4 Maximum sound emission on the surface Model B 175N Condition of pressurised pump Average level of pressure on the surface. Level of sound power db(a) 76.7 db(a) 73.2 db(a) 76.7 Maximum sound emission on the surface Model B 250N Condition of pressurised pump Average level of pressure on the surface. Level of sound power db(a) 79.3 db(a) 75.6 db(a) 79.1 Chapter 3 3.1 OPERATIONS TO BE PERFORMED 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. ATTENTION! In the presence of these anomalies we recommend readily intervening in order to avoid safety problems, a reduced flow rate and reduced efficiency of the pump. Summarising, the checks to be carried out are: Periodical checks of the pumping head must be carried out to ensure that the pump is safe and operating correctly. Particular attention must be taken if the head installed is made of plastic as it is more sensitive to temperature variations and settling phenomena. Check for oil leaks from the filler and drain caps, from the diaphragm pinching or from the piston seal. Any one of these leaks may initially cause a decrease in the flow rate, followed by the breaking of the diaphragm at a later date. Check for dosed liquid leaks from the valves. XMPE0TMB125SST014 6/12 1st Edition - 2014
3.2 Troubleshooting This chapter describes some inconveniences that may arise during machine use. ATTENTION! We propose some possible interventions: it is good practice to initially attempt to resolve a problem applying the most simple of solutions. Never attempt repairs if unsure of what you are about to do: greater damage may be caused. The indications described in the following table help in the event of troubleshooting. TROUBLESHOOTING Inconveniences Causes Solutions Low delivery pressure Low flow rate 1 - Clogged suction system: 2 - Worn safety relief/vent valve seat: 3 - pump not completely primed (air bubble in the suction pipe): 4 incorrectly connected motor: 5 - dirty pump valves: 6 - Oil leaks through the filler and drain caps 7 - Damaged piston seal gasket. Air inlet in oil chamber through piston seals. Scratched piston 8 - insufficient oil in oil chamber 9 - air entering the head 10 - insufficient suction pressure 11 - Circuitous piping route with the presence of chokes; pipe inner diameter smaller than the valve passage area Clean suction filter. Check the suction piping and the feed tank for obstructions or partially closed valves Check the safety relief/vent valve, if the liquid leaks - switchoff the pump and check Excessive suction height, respect NPSHr value, install a suction dampener Check the motor plate again for the correct wiring sequence. Check the phases. Inspect valve units. Clean or replace the components if necessary. Loose caps or damaged gaskets, to be replaced. Replace the seal gaskets or the piston Insufficient interposed fluid: bring the piston to 0% FDC by acting on the adjusting knob, remove the filler cap and top-up with oil, reposition the cap. Verify the presence of inlet air in the suction pipe. Check junctions between pipes, seals around the valve stems, and the connections of the instruments. Check the diameter and piping route. Increase the suction pressure. Reduce the suction height or increase the liquid level in the feed tank. Check diameter and piping route XMPE0TMB125SST014 7/12 1st Edition - 2014
TROUBLESHOOTING Inconveniences Causes Solutions 1 - air entering the head Verify the presence of inlet air in the suction pipe. Check junctions between pipes, seals around the valve stems, and the connections of the instruments. If the air is entering through the stuffing box, adjust or replace it. 2 - foreign material inside valve Inspect valve units. Clean or replace the components if Excessive noise necessary. 3 - excessive lifting of valves Replace the worn parts A quick closing of the valve, solenoid valve or cock will produce a water hammer. This 4 - safety relief valve or other accessories in delivery piping cause noise pressure wave is transmitted to the pump resulting in noise. A pulsation dampener before the back pressure valve may be requested. A different type of valve may be requested. 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. 3.3 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 drained for any maintenance intervention to the various components. Proceed as follows: Disconnect the piping from the valves. Drain the oil chamber by loosening the cap underneath, drain the contents into a container and dispose of it according to regulations. Loosen the screws located on the front of the pumping head. Remove the head from the pump. Remove the diaphragm, replace if damaged. Replacement is recommended if the piston and oil chamber are damaged due to the corrosion of the pumped product. N.B.: Once the maintenance operations are complete, carry out the disassembly operations in reverse order to reassemble the components. XMPE0TMB125SST014 8/12 1st Edition - 2014
3.4 Piston disassembly and re-assembly The piston is blocked on the slide by means of two dowels, one visible in the upper part and the other hidden in the lower part. Proceed as follows to disassemble the piston: After having disassembled the head and checked the oil chamber. Remove the covering protections. Loosen the screws inside the lantern blocking the oil chamber. Remove the oil chamber. Remove the gasket ring from the piston Loosen the visible dowel. Hold the piston and turn it until the second dowel is visible, then loosen it. Check for wear of the gasket and piston, replace if required. Once the operations are complete, carry out the disassembly operations in reverse order to reassemble the components. ATTENTION! N.B.: The piston must be reassembled taking care to tighten the two dowels with the same force so that the piston is coaxial with the slide. HEAD COMPOSITION Rotation of piston Loosening of dowels blocking piston 3.5 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% of stroke), for pumps with an 8 and 10 diameter piston, adjust to 50%. This can be made easier by electrically powering the pump. Once the operation is complete, if the pump has been electrically powered it must be switched off to operate safely. Fill the oil chamber up to the cap support plane, hammer gently with a rubber mallet to facilitate the evacuation of air bubbles formed during filling, wait a few minutes and top-up to the brim. Delicately fasten the cap with the wrench. CLOCKWISE rotation KNOB XMPE0TMB125SST014 9/12 1st Edition - 2014
The pump is now ready for operation and can be connected to the plant. AMOUNT OF OIL REQUIRED TO FILL THE OIL CHAMBER IN ml Piston Ø mm Series SR Mod. B 125N - B 175N Mod. B 250N 8 72 / 12 72 / 18 108 / 25 101 / 30 106 / 40 190 405 50 397 397 55 390 390 65 385 950 75 / 918 90 / 863 WHITE MINERAL OIL 32 (used in initial filling) Some brands and their initials are featured for exemplification purposes: TYPES OF EQUIVALENT OILS Shell Ondina Oil 32 BP Energol WM 4 TotalErg Finavestan A180B IP Solaria Oil 32 Castrol Optimol Optileb DAB 8 Agip OBI 12 Alternatively, use hydraulic oil 32 (some examples can be found below) TYPES OF EQUIVALENT OILS Shell Tellus Oil 32 BP Energol HLP-Z API CIS 32 32 TotalErg Azolla Zs 32 IP Hydrus Oil 32 Esso Nuto H 32 Castrol Hyspin Aws 32 Agip OSO 32 Mobil DTE 24 ATTENTION! Before starting the pump, the operator must check that the plant shut-off valves, previously closed for maintenance, are opened. 3.6 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 Oil chamber Head Valve unit Maintenance period Hydraulic oil Gaskets Piston Diaphragm Plastic Metal Hours 500 Half-yearly X X X X X X Annual In case the pump is used continuously and in particularly harsh conditions, we recommend reducing the verification times. XMPE0TMB125SST014 10/12 1st Edition - 2014
NOTES: XMPE0TMB125SST014 11/12 1st Edition - 2014
For a better use of your metering pump, choose: DOSEURO S.r.l ACCESSORIES. 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 Cert. No. 5942 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 XMPE0TMB125SST014 12/12 1st Edition - 2014