LOBE PUMP
Contents
1. aas gt 15 7 9 At _ __ _ _ _ _________ 17 76 LODE gt o 19 7 7 Mechanical seal assembly and disassembly 20 8 Technical Specifications 8 1 Eoo 0 nasi 0 01 eee 21 8 1 1 Frame of the nannan 22 dcum S E M 23 8 3 LODE pump without motor Spe or ol Prsia ha 24 8 4 Lobe pump with motor assembly dimension eee een nnnm 25 8 9 Exploded VIEW EE DOO no 26 sie MM E 27 sigmaTECH 3 General Information 3 1 DESCRIPTION The TUR TUL lobe pumps made by SIGMATECH are part of our wide range of positive displacement rotary pumps for viscous liquids The lobe pump has the following features e The TUR TUL pump normal flow rate suitable for differential pressures of up to 12 bar e The TUR TUL pump with wider lobes delivers a higher flow rate and is suitable for differential pressures of up to 7 bar The TUR TUL model has been specially developed to respond to all hygienic requirements in the food industry As regards hygiene reliability and sturdiness the complete2. sigmaTECH The pump has moving parts Do not put your fingers into the pump when it is operating NEVER work with the suction and the delivery valves shut off NEVER directly sprinkle the electric motor with water Standard motor protection is IP 55 dust and water sprinkling protection 1 4 3 During maintenance You must always bear in mind the Technical Specifications set forth in Chapter 8 NEVER strip the pump down until the pipes have been drained Remember that there will always be some liquid left in the pump casing if it has not been fitted with a drain Always remember that the liquid that has been pumped may be dangerous or subject to high temperatures For situations of this type please consult the prevailing regulations in the country in question Do not leave loose parts on the floor ALWAYS turn the power supply to the pump off before embarking on maintenance work Take out the fuses and disconnect the wires from the motor terminals All electrical work must be carried out by duly authorised personnel 1 4 4 In accordance with the instructions Any failure to comply with the instructions could lead to a hazard for the operators the atmospheric conditions of the room and the machine and it could lead to a loss to any right to make a claim for damages Such non compliance could bring with it the following risks e Important operating failures of the machine plant Failure to comply with specific ma
3. Always use protective goggles 7 3 20 Automatic cleaning in place If the pump is installed in a system fitted with a CIP process there will be no need for stripping The recommended minimum liquid speed for an effective process of cleaning is 1 8 m s minimum Re gt 100 000 at 1 0 2 5 bar If it is not fitted with an automatic cleaning process strip the pump pursuant to the instructions given in the section entitled Stripping and Assembly of the pump Cleaning solutions for CIP processes Only use clear water chloride free to mix with the cleaning agents a Alkaline solution 1 in weight of caustic soda NaOH to 709C 1509F 1 kg NaOH 100 I water cleaning solution Or 2 2 NaOH to 33 100 l of water cleaning solution b Acid solution 0 596 in weight of nitric acid HNO3 to 709C 1509F 0 7 litres HNOs to 53 100 l water cleaning solution sealing gaskets Monitor the concentration of cleaning solutions it could give rise to the deterioration of the pump A These solutions are given as examples and should be validated before use on an application In order to remove any remains of cleaning products ALWAYS rinse the element in guestion with clean water after completing the cleaning process 7 3 3 Automatic SIP sterilization in place The process of sterilization with steam is applied to all the equipment including the pump Do NOT start the pump during the process of sterilizat
4. 7 4 5 Gear Case Rear Cover Disassembly e Loosen and remove the bolts 43 in the rear cover of the gear case using a spanner Remove rear cover take off the washer carefully and check Loosen the three bolts 39 in the gear case using a hex spanner remove the gear cap 38 take off tighten ring 7 j X v Z e T 007 Toms 7 e SAG V 7 W C AN A 7775 7 B WP e Remove the two gears 36 S Oi ENS N 7 4 6 Shaft Assembly Removal Loosen and remove the bolts 18 in the sealing cap using a hex spanner LAN Remove the shaft assembly from the gear case 05 Due to the tightness O of the bearings cover a Nylon hammer must be used Lightly tap the M rear part of the driveshaft 32 and 31 till take off the two driveshaft Remove the oil sealing bottom cover 19 from the driveshaft 32 and 31 remove the oil sealing 20 and check if there are any defects find a LJ replacement before reassembling the pump Note Each driveshaft must be taken off separately 16 sigmaTECH 7 5 PUMP ASSEMBLY 7 3 1 Shaft Assembly e Check that the oil sealing 20 has not been damaged and attach with a little grease or oil in the correct position of the bottom cover 19 e Along the two driveshaft holes of the gear case use a Nylon hammer use a Nylon hammer and lightly tap the shafts 3
5. Ing Dusan Rodak SIGMATECH Sturova 6 917 01 TRNAVA sigmaTECH Prev dzka a faktura n oddelenie Jasn 16 917 01 TRNAVA Tel 421 33 55 01 606 Fax 421 33 53 51 241 mail rodak sigmatechtrnava sk objedn vky ponuky web www sigmatechtrnava sk cenn ky katal gy INSTALLATION SERVICE AND MAINTENANCE INSTRUCTIONS LOBE PUMP Registr cia podnikate a OU Trnava reg slo 1410 2001 I O 17672546 IC DPH SK1020338418 Orp DIC 1020338418 banka V B Trnava tu SK 205 747 212 0200 tu EUR 1657920658 0200 SWIFT SUBASKBX sigmaTECH 1 Safety 1 1 INSTRUCTION MANUAL This instruction manual contains information on the reception installation operation fitting stripping and maintenance for the TUR TUL pump The information given herein is based on the most up to date data available SIGMATECH reserves the right to modify this instructions manual without having to give prior notice 1 2 START UP INSTRUCTIONS This instruction manual contains vital and useful information for properly operating the pump and for keeping it in good running condition Not only should the safety instructions set forth in this chapter be carefully read before putting the pump into operation but those concerned must also familiarise themselves with the operating features of the pump and strictly adhere to the instructions given herein It is extremely important that these instructions be
6. e After unit is installed recheck alignment of pump and motor shaft and alignment of piping Realign if necessary e In the case of applications dealing with high temperatures the pump can be operated temporarily at its working temperature Then recheck alignment pump piping For other foundations consult SIGMATECH 4 4 COUPLING If the pump is supplied with motor the pump and motor shaft of complete units have been accurately pre aligned in our factory AN After installations of the pump unit the pump and motor shaft should be re aligned Place a straight edge A on top of the coupling the straight should make contact with both halves of the coupling over their entire length See figure Repeat the check but this time on both sides of the coupling near the shaft For the sake of accuracy this check should also be done using an outside caliper B at two diametrically opposite points on the outside surfaces of the two halves of the coupling Vg O BEEN p coo a Va min 5 sigmaTECH Maximum alignment deviations N p 3 oo N aae gt o __ gt T oz iro gt 93 93 mam gt s os 93 a 2 1 038 N 4 5 PIPES e In general suction and d
7. kept in a set place near the installation 1 3 SAFETY 1 3 1 Warning signs Danger of injury caused by rotating parts Danger for people in general of the equipment Danger Electricity Danger Caustic or corrosive agents Danger to the proper operating of the Danger Suspended loads machine Obligation to ensure safety at work Use of safety goggles obligatory A A A 1 4 GENERAL SAFETY INSTRUCTIONS Please read the instruction manual carefully before installing and commissioning the pump Should you have any doubts or queries contact SIGMATECH AN E 41 During the installation You must always bear in mind the Technical Specifications set forth in Chapter 8 Do not put the pump into operation before connecting it to the pipes Do not put the pump into operation if the cover of the pump has not been fitted and the impeller fixed in the pump Check that the motor specifications are correct especially if there is a special risk of explosion due to the work conditions During the installation procedure all the electrical work must be carried out by duly authorised personnel gt Pb 1 4 2 During operation You must always bear in mind the Technical Specifications set forth in Chapter 8 The limit values that have been set must NEVER be exceeded AN NEVER touch the pump or pipes whenever the pump is being used to decant hot liquids or during the cleaning procedure
8. possible to the suction tank and whenever possible below the level of the liquid e Place the pump in such a way that there is enough space around it to provide access both to the same and to the motor See Chapter 8 Technical Specifications to consult dimensions and weights e Place the pump on a level and flat surface The basement must be rigid horizontal and against any vibration Install the pump in such a way that it can be properly ventilated If the pump is to be installed outside it must be done so under cover Its positioning must enable easy access for any inspection and maintenance operations that may need to be carried out 4 3 1 Foundation Install the pump base so that the drive and pump are level and well supported Therefore the pump unit should be installed on a base plate or on a frame both placed exactly level on the foundation The foundation must be hard level flat vibrations free to prevent base distortion to keep the alignment pump drive guaranteed while commissioning To install the pump unit on the foundation proceed as follows e Make holes in the foundation to fit foundation bolts This is unnecessary when expanding screws are used instead of foundation bolts Place base plate or frame with the aid of shims horizontally on the foundation e Grout e When the grout has entirely hardened the pump unit can be placed on the base plate or the frame Tighten the nuts on the foundation bolts carefully
9. 2 and 31 until the bearings cover is well fixed to the gear case Note Each driveshaft must be assembled into the gear case separately e Place gear 36 on the driveshaft 32 31 put tightening ring 37 into gear along the driveshaft put the gear bottom cover 38 into gear and aim at the bolt hole assemble the bolt 39 into the gear using a hex spanner After finishing the assembly of the gear turn the driveshaft several circles to make sure there is no friction and lock Check seal 40 and oil sealing 42 make a replacement if necessary e Fix the oil sealing 42 into the rear cover 41 of the gear case Grease the seal and place it in the gear case 25 carefully and aim at the bolt hole e Along the driveshaft 32 put the oil sealing hole of the rear cover 41 into the gear case and aim at the bolt hole 7 5 2 Filling with Lubricant Oil e Remove the oil plug 26 located at the top of the gear case 25 e Fill the gear case 25 with lubricant oil up to the middle level of the sight glass 27 See 7 1 3 Oiling for the type and quantity of oil to use 7 5 3 Rotor Case Assembly AN CAUTION When reassembling the rotor case pay attention to the position of the centring pins e Grease O ring 13 and fix it into mechanical seal stationary ring put it in the sealing step in the back of the rotor case insert the stationary ring pin into the stationary ring hole e Mount the tightening cover 1
10. 23 theoretical sphere TURTUL3O 35 6 256 8 TURTUL35 35 64 256 TURTULS5S 64 10 22 sigmaTECH 8 2 Materials Parts in contact with pumped Other parts in stainless steel eem mn Gaskets in contact with pumped material Other materials for optional Surface finishing Mechanical seal Type of seal Stationary parts material Rotary parts material Elastomers material Cooled mechanical seal Working ass ires rane onec vb a Eau RE eua ns Flow rate of the circulation Double mechanical seal Type of seal Due to the balanced design no over pressure is required Operating pressure if it is required by the process 23 AISI 316L AISI 304 EPDM Consult yoursupplier Standard finish Single internal balanced mechanical seal Carbon Silicon carbide EPDM 0 5 bar 73 psi 2 5 5 l min 0 7 1 3 gpm Balanced design 1 5 2 bar 22 29 psi over the pump operating pressure TECH sigma imension Lobe Pump without Motor D 8 3 TUL TUR 55 TOL 24 sigmaTECH Lobe Pump with Motor Assembly Dimension 8 4 A al L rr ANNE TE b M NININIININIE EG T
11. 7 in the driveshaft 32 31 then place the mechanical seal rotary ring into the driveshaft 32 31 e Insert the fixing pin of the rotor case into the gear case 25 and then assemble the rotor case into the gear case tighten the bolt 21 22 23 24 using a spanner 17 5 sigmaTECH 7 5 4 Lobe assembly ALWAYS check the clearance between the lobes and lobes and rotor case before finishing assembly See 7 6 1 Clearance and tolerance table Fit new O rings 09 to the lobe screws 08 replace new o ring 11 in the driveshaft Push the lobe 10 into the driveshaft 32 and 31 slightly PUE X i Place the lobe bolt 08 onto the driveshaft SON A M 22 e Assembly is exactly the same for all lobe types 7 5 5 Pump cover assembly Check that the O ring 06 is in good condition or if necessary replace it with a new one Place it in the pump rotor case 05 Place the pump cover 06 onto the rotor case 12 and tighten the bolt and blind nuts 01 02 03 04 e See chapter 5 1 1 Checks to be carried out before putting the pump into operation 18 M sigmaTECH 7 6 LOBE ADJUSTMENT 7 6 1 Clearance and tolerance table A B V VTZ is 772 207 0 25 0 25 0 75 1 3 0 30 0 30 0 70 1 TUR TUL 55 60 0 05 0 05 0 05 0 05 A axial clearance between the lobe and the cover B axial clearance between the lobe an
12. UL TUR 35 TUL TUR 55 TUL TUR 60 25 sigmaTECH 8 5 Exploded view 01 02 03 04 26 sigmaTECH 8 6 Spare parts Pos Material Qty Pos Part Name Material Qty Posse e 2 oo o o oo oem 9 m Cw usse 4x9 ne 1 Bearing fix position Com wx 2 9 jew f queso as eese 39 jp 2 fan ___ DW joue 25 eese iem 05 Frontcover 1 27 Ar 4 5 ol 34 Tightening nut n I kw 04 ___ 27
13. ature 110 230 F 110 C 230 Maximum viscosity o 100 000 mPa s 100 000 mPa s Maximum speed e 950 rpm 950 rpm MAXIMUM COMM SCIONS cens one apa 100 mm 4 in 150 mm 6 in Suction delivery connections Clamp standard Clamp standard a Maximum temperature due to EPDM gaskets for continuous application To consult for higher temperatures 2 The maximum viscosity allowed will depend on the nature of the liquid and the sliding speed of the seal faces A Use special protection when the noise level in the operation area exceeds 95 dB A T N max Bi Di Qth Pmax ype rpm mm mm M h bar TUR TUL 20 950 86 18 1 TUR TUL23 950 23 86 3 11 TUR TUL25 950 25 86 5 1 TUR TUL3O 950 30 108 5 8 TUR TUL35 950 35 108 7 8 TUR TUL55 950 55 108 10 6 TUR TULGO 720 60 108 12 6 N max B D Qu Pmax Maximum speed Lobe width Lobe diameter Theoretical flowrate at Nna Maximum differential pressure 21 sigmaTECH 8 1 1 of the particles i WARNING Only soft particles Internal diameter Clamp Maximum theoretical Recommended max connection connection sphere frame n n n frame TUR TUL
14. by the following documentation e Dispatch notes e Pump Instruction and Service Manual e Drive Instruction and Service Manual e If the pump has been supplied with a drive from SIGMATECH Unpack the pump and check the following The pump suction and delivery connections removing the remains of any packing material e Check that the pump and the motor have not suffered any damage e Should the pump not be in proper condition and or does not have all the parts the haulier must draw up a report as soon as possible with regard to the same 4 1 1 Pump identification and marking y DZH Serial number 08060088 4 Date 2008 06 01 Pump plate 4 23 TRANSPORT AND STORAGE Pumps and pumping units are often too heavy to be stored manually Use an adequate means of transport Use the points which are indicated in the drawing for lifting the pump Only authorized personnel should transport the pump Do not work or walk under heavy loads Lift the pump as shown below e Always use two support points placed as far apart as possible e Secure the support so that it will not 9 move See chapter 8 Technical Specifications to consult dimensions and weights um a sigmaTECH 4 3 LOCATION Position the pump as near as
15. d the rear of the rotor case C radial clearance between the lobes E radial clearance between the lobe and the rotor case on the suction side 7 6 2 Synchronising the lobes In order to enable the gear 36 to be tightened mount it in the driveshaft 32 31 and put the tighten ring 37 into the iside of the gear then push the bottom cover 38 into the inside of the gear aim at the bolt hole and tighten it with bolt Note The gear and lobes run synchronously and the lobes will not touch each other 19 sigmaTECH 77 MECHANICAL SEAL ASSEMBLY AND DISASSEMBLY 7 7 1 Single Mechanical Seal Mechanical seals are fragile parts Take care when handling them Do not use any screwdriver or similar tool to pull out the parts e Clean all the components of the mechanical seal before placing them Check that the working surfaces are not damaged SIGMATECH recommends replacing the entire mechanical seal if one of the working surfaces has a defect e Replace the O rings during assembly Pos Single mechanical seal 096 02 95 07 A940 PT E 03 N 4 01 yee Graphite eS N STZ 7 7 Fixed pin E N 4 e PU RS Rotary ring NC A 4 d _ Retainning rin Wave spring Js D e d P K 4 A Fixed bolt Fixed cover Driveshaft tightening cover Disassembly e Remove the
16. eal Periodically check that there are no leaks in the shaft area Should there be any leaks in the mechanical seal area replace the same pursuant to the instructions given in the Pump Disassembly and Assembly section 7 1 2 Dry thread torque Dry thread torque N m DELIS Z da tebe 7 1 3 Oiling The bearings are oiled by immersion in an oil bath The pumps are supplied with oil e Regularly check the oil level for example weekly or every 150 operating hours The first oil change must be carried out after 150 hours of operation e Afterwards it can be changed every 2500 operating hours or at least once a year when operating under normal conditions When change the oil the oil sump must be filled up to the level in the middle of the peephole Do not pour too much oil into the sump Leave the pump switched off for a while and then re check the oil level if necessary add a little oil Pump type and Oils in the gear 1 Quantity of oil in PUMP TYPE the gear case 1 TUR TUL 20 23 25 7 3 STORAGE Before being stored the pump must be completely emptied of liquids Avoid as far as possible the exposure of the parts to excessively damp atmospheres 13 5 sigmaTECH 7 3 CLEANING 7 3 1 Manual cleaning The use of aggressive cleaning products such as caustic soda and nitric acid may give rise to skin burns Use rubber gloves during the cleaning process
17. elivery pipes should be fitted in straight stretches with the minimum amount of elbows and accessories in order to reduce as far as possible any head load loss that might be produced by friction e Make sure that the pump ports are well aligned with respect to the piping and that they are similar in diameter to that of the pipe connections e Position the pump are near as possible to the suction tank and whenever possible below the level of the liquid or even lower with respect to the tank in order for the static suction head be at its maximum Place brackets for the piping as near as possible to the suction and delivery ports of the pump 4 5 1 Shut off valves The pump can be isolated for the purpose of carrying out maintenance work To this end shut off valves should be fitted at the pump s suction and delivery connections AN These valves must ALWAYS be open whenever the pump is operating 4 5 2 Self priming process In general terms if the self priming process is followed the pump ought to contain sufficient liquid to fill the internal recesses and the void spaces thus enabling the pump to create a pressure difference However if low viscosity fluids are to be pumped a foot valve of the same or greater diameter as that of the suction pipe should be installed alternatively the pump can be installed with a U shaped piping A The use of a foot valve is not recommended for pumping viscous liquids In order to elimina
18. essure Relief Valve installation 11 sigmaTECH 6 Operating Problems The table given below provides solutions to problems that might arise during pump operation With respect to the same it is assumed that the pump has been properly installed and has been correctly selected for the application in question Should there be a need for technical service please contact SIGMATECH Operating problems Probable causes Motor Overload 8 9 12 16 20 21 22 23 24 26 Noise and vibrations 2 4 5 6 7 8 9 11 12 13 16 19 20 21 22 23 24 25 26 The pump gets clogged 8 9 11 16 19 20 21 22 24 25 26 Overheating of pump 7 8 9 iL 12 16 20 21 22 23 24 26 M 5 11 15 16 19 24 25 Leak through mechanical seal 17 18 27 1 Wrong rotation direction Invert the rotation direction Insufficient NPIP Increase available NPIP Rise the suction tank Lower the pump Reduce the speed Increase the diameter of the suction pipe Shorten and simplify the suction piping 6 Suction pipe clogged Checkthesuctonpipeandfite s Discharge pressure too high If necessary reduce the loss of head by increasing the diameter ll Viscosity of the liquid is too high Reduce the pump speed Reduce the viscosity for example by heating the liquid 10 Viscosity of liquid too low Increase the pump speed pe Increase the viscosity for example by cooling the liquid O rings and gaske
19. icated in Chapter 8 Technical Specification 5 1 2 Checks to be carried out on putting the pump into operation e Check to make sure that the pump is not making any strange noises e Check to see if the absolute inlet pressure is sufficient in order to avoid cavitations in the pump Consult the curve for the minimum required pressure above the steam pressure NPIPr e Monitor the delivery pressure e Check that there are no leaks in the sealed areas A shut off valve should not be used in the suction pipe to regulate the flow rate It must be completely open during operation Monitor motor consumption in order to avoid a circuit overload Reduce flow and motor power consumption by reducing motor speed 5 2 PRESSURE BY PASS The valve s opening pressure depends on the fluid to be pumped its viscosity its rpm and so before starting up the pump the operator ought to adjust the pressure relief valve s opening pressure setting 2 bar When checking the relief valve also make sure the pump s pressure will NEVER exceed the pressure 10 sigmaTECH operating pressure Correct operating pressure has to be adjusted by end user When the pressure relief valve is equipped this valve has been adjusted to the pump s maximum When the relief valve does not work properly the pump must be taken out of service immediately The valve must be inspected by an SIGMATECH service technician Example of Pr
20. intenance and repair procedures e Potential electrical mechanical and chemical hazards e Atmospheric conditions the room could be hazardous due to the release of chemical substances 1 4 5 Warranty We wish to point out that any warranty issued will be null and void and that we are entitled to an indemnity for any civil liability claim for products which might be filed by third parties if e Operation and maintenance work has not been done following the corresponding instructions the repairs have not been made by our personnel or have been made without our written authorization Modifications are made to our material without prior written authorization e The parts or lubricants used are not original DONJOY parts lubricants e material has been improperly used due to error or negligence or has not been used according to the indications and the intended purpose e The parts of the pump have been damaged as a result of having been exposed to strong pressure as there was no pressure relief valve The General Delivery Terms which you have already received are also applicable safety use spare parts and original accessories The use of other parts exempts the manufacturer No modification can be made to the machine without the prior consent of the manufacturer For your A from any and all responsibility Any change in operating conditions can only be done with the prior written consent of SIGMATECH In the event of doubt or
21. ion see the signalling label on the pump Start the pump motor briefly Make sure the pumping direction is the right one If the pump operates the wrong direction it may cause severe damage A Check ALWAYS the direction of the motor s rotation with liguid inside the pump sigmaTECH 5 Start up Before putting the pump into operation read carefully the instructions on installation given in Chapter 4 Installation 5 1 START UP Read Chapter 8 Technical Specifications carefully SIGMATECH will not assume responsibility for any improper or incorrect use of the equipment Ad Do not touch the pump or the piping while it is pumping products at a high temperature 3 1 1 Checks to be carried out before putting the pump into operation Completely open the pipes suction and delivery shut off valves Check oil level of the pump Add correct grade of oil as necessary to maintain level in center of oil sight glass In the case of first start up pumps are shipped with oil in the gearbox e If the liquid fails to flow toward the pump fill it with the liquid to be pumped The pump must NEVER rotate without fluid inside it Check that the power supply matches the rating indicated on the motor plate Check that the direction of rotation of motor is the right one If the pump has a double or a flushed mechanical seal mount the auxiliary connection corresponding to the values ind
22. ion with steam The parts materials suffer no damage if the indications specified in this manual are observed No cold liquid can enter the pump till the temperature of the pump is lower than 60 140 F A flow by pass is recommended to be used in order to assure the flow of sterile product after the pump Maximum conditions during the SIP process with steam or overheated water a Max temperature 140 C 284 b Max time 30 min Cooling Sterile air or inert gas d Materials EPDM PTFE recommended 14 sigmaTECH 7 4 PUMP DISASSEMBLY The assembly and disassembly of the pumps should only be done by qualified personnel Make sure that the personnel read carefully this instruction manual and in particular those instructions which refer to the work they will perform repair costs and a long period of down time SIGMATECH is not responsible for accidents or damages caused by a failure to comply with the instructions in this manual Q Incorrect assembly or disassembly may cause damage in the pump s operation and lead to high Preparations Provide for a clean working environment as some parts including the mechanical seal require very careful handling and others have close tolerances Check that the parts which are used are not damaged during transport When doing this you need to inspect the adjustment edge the butted faces the tight fit burrs etc After each disassembly carefully clean the par
23. led consecutively as the shafts rotate and the liquid is displaced towards the discharge side The small clearances between the lobes and between the lobes and the walls of the pump body duly cause the spaces to be rather well closed C The pump body is completely full and the liquid leaks through the meshing of the lobes knocking against the space walls SO as to thus complete the pumping action 3 3 APPLICATION The main advantage of the SIGMATECH TUR TUL lobe pump is its capacity to pump a great variety of viscous liquids from 1 mPa s up to 100 000 mPa s Furthermore it is capable of pumping liquid products that require very careful handling and liquids that contain soft solids thus causing only a minimum degradation of same sigmaTECH 3 3 1 Field of application 20 25 30 60 PH bar 1 10 15 20 11 20 30 70 125 P bar Q m h The range of application for each type of pump is limited The pump was selected for a given set of pumping conditions when the order was placed SIGMATECH shall not be liable for any damage resulting from the incompleteness of the information provided by the purchaser nature of the fluid rpm etc sigmaTECH 4 Installation 4 1 PUMP RECEIPTION SIGMATECH is not responsible for any deterioration of the material as a result of its transportation or unpacking Visually check that the packing has not suffered any damage The pump will be accompanied
24. pressure arising inside the pump For example when the pump s discharge port is clogged and the liquid cannot be pumped out too high a pressure can cause serious damage to some of the pump s parts The pressure relief valve opens a passage from the pump s discharge side to its suction side an escape route redirecting the flow again to the suction side whenever specifically high pressure levels are reached If the pressure relief valve operates this will mean that the equipment is not working properly The pump should be disconnected immediately Identify and solve the problem before re starting the pump Remember that the pressure relief valve is not able to be used to regulate the flow rate The pressure relief valve can be adjusted to any determined pressure according to the type of pump being used 4 7 ELECTRICAL INSTALLATION Leave the connecting of the electrical motors to qualified personnel Take the necessary measures to prevent any breakdowns in the connections and wires The electrical equipment the terminals and the components of the control systems may still carry an electric charge even when disconnected Contact with them may put the safety of operators at risk or cause irreparable damage to the material Before manoeuvring the pump make sure that the electric box is switched off e Connect the motor in accordance with the instructions supplied by the manufacturer of the same e Check the direction of the rotat
25. range of lobe pumps satisfies all requirements set by the aforesaid industry Its modular design enables optimal part interchange between the different pumps The lobe pumps are rotary displacement pumps Owing to the contact between the internal parts the pressure variations etc they make a louder noise than centrifugal pumps This noise must be taken into consideration when installing these pumps The TUR TUL rotary lobe pumps by SIGMATECH have been approved by EHEDG and the American 3A Standards Authority This equipment is suitable for use in food processing applications with strict hygienic requirements 3 2 OPERATING PRINCIPLE The lobe pump is a positive displacement rotary pump The left lobe is driven by the driving shaft The right lobe is located on the driven shaft and is driven via a helical gear Both lobes rotate in synchronism without one touching the other When the pump is running they displace a set volume of liquid Figure below shows how a lobe pump operates is eet A rt ios C y WP S SEA FR A A v T T A When the lobes rotate the space on the suction side increases because one lobe moves away from the other thus causing a partial vacuum that draws the liquid into the pumping chamber B Each lobe void is fil
26. should you require a fuller explanation on particular data adjustment assembly disassembly please do not hesitate to contact us sigmaTECH 2 Index 1 Safety gt 1 2 ITI SEELICEIODIS ive sagi d eve pes EVER RUE Vi da HV n hon an le root Fed ein 1 Eo c cae 1 15 General UCU ONS rain _ e Dx 1 2 Index 3 General Information Oe elo E RR T TED 4 SA OPETAUMG PRINCI DIS oo 4 secas 5 4 Installation Fob Usage TT ena 6 ze redigere 6 jc OC AVION A E 7 SA CODICI seo ocio eia ee reer MU DI nts D DTE 7 Bide PINGS NUT 8 4 6 Pros re relief ms 9 Pecica Bipzrsl to MT Tn 9 Start up MESS gern o PN RE 10 5 2 Pressure BV DHSS Diss a dU d a Ew VOR UR APER Kod 10 6 Operating Problems 7 Maintenance 7 A Genstal miel tefialiC ___ 13 Fil SUN 8 T 13 S E E PEE E ENE E AS A A POA E PEN E 14
27. stationary fixed pin 04 from the rotor case take off the stationary cover Please proceed carefully e Loosen the fixed bolt 09 in the driveshaft remove the rotary ring 05 and fixed cover 10 from the driveshaft Assembly e Lubricate all the O rings of the mechanical seal with soapy water or oil compatible with the material of the seals pumped liquid and application e Mount the driveshaft tightening cover 11 in the driveshaft mount the rotary sealing parts 05 06 07 08 09 10 in the driveshaft e Fit the stationary part 01 02 03 into the rotor case and aim at the bore ensuring that the fixed pin 04 engage with the slot edge of stationary ring e Assemble the rotor case and gear case see paragraph 7 5 3 push the rotary parts 05 several times adjust the fixed bolt 09 using the hex spanner till the rotary ring and stationary ring reach to a perfect position e Clean the working surfaces with solvent e Reassemble the lobe rotor according to 7 5 4 Lobe assembly 20 sigmaTECH 8 Technical Specifications 8 1 TECHNICAL SPECIFICATIONS Short rotor Long rotor Theoretical displacement volume x 100 rev 217 litres 321 litres aX IMMUN Pale TERT 78 m3 h 586 gpm 115 ms h 700 gpm Maximum differential 5 12 bar 174 psi 7 bar 102 psi Maximum working 16 bar 232 psi 16 bar 232 psi Maximum temper
28. te air and gases from the suction pipe the counter pressure on the discharge pipe should be reduced When the self priming process is used the pump s start up should be done by opening and emptying the discharge pipe which allows the air and gases to escape at a low counter pressure BY PASS Another possibility involves long pipes or when a check valve is installed in the discharge pipe it is also possible to install a by pass with a shut off valve on the discharge side of the pump This valve shall be opened in the case of priming and will allow air and gases to escape at a minimum counter pressure The by pass should not lead back to the intake orifice but to the supply tank instead sigmaTECH 4 6 PRESURE RELIEF VALVE The positive displacement lobe pumps must be protected from excess pressure when they are operating Consequently all the TUR TUL pumps can be fitted with a stainless steel pressure relief valve or a pressure by pass 4 6 1 Protection This valve protects the pump and prevents excessively high pressure arising in the circuit It reduces the differential pressure Ap between suction and discharge but not the maximum pressure within the plant Do not use the pressure relief valve to protect the system from excess pressure It is designed to protect the pump only as it is not a safety outlet 4 6 2 Operation principle The by pass valve prevents excess
29. ts and check for any damage Replace all damaged parts Tools Use the proper tools for assembly and disassembly operations Use them correctly Cleaning Before disassembling the pump clean it on the outside and on the inside A NEVER clean the pump by hand when it is running 7 4 1 Pump cover disassembly A CAUTION Liquid may spill from the rotor case when removing the pump cover Close the suction and delivery valves Remove the cap nuts 01 02 03 Check that the seal 06 is in good condition 7 4 2 Lobe disassembly Loosen the lobe screws 08 using a spanner remove seal 09 and check These screws have a right hand thread In order to prevent the lobes from turning simultaneously blocks of wood or plastic can be placed between the lobes Remove both lobes 10 If necessary use a tool to assist for this purpose Check that the O ring 11 is in good condition 15 sigmaTECH 7 4 3 Disassembly of Mechanical Seals As a result of the pump design it is not necessary to disassemble the rotor case 25 in order to assemble disassemble the mechanical seals Mechanical seal is directly mounted to the rotor case 7 4 4 Rotor Case Disassembly e Loosen and remove the nuts and bolts 21 22 23 24 using a spanner e Remove the rotor case 12 using Nylon hammer if necessary
30. ts are not the right ones for the Fit the proper O ring and gaskets check with the supplier liquid Replace and readjust the gears E Insufficient lubricating oil level Fill up with oil 21 Unsuitable lubricating oil Use an appropriate oil The lobes rub Reduce the temperature Reduce the discharge pressure Adjust the clearance reor misalignment Align the coupling ension on the pipelines onnect the pipelines to the pump free of tensions Foreign bodies in the liquid Insert a filter in the suction pipe m Pump and or electric motor not fixed on Tighten check that the piping has been connected stress foundation free and align the coupling A If the problem persists use of the pump must cease immediately Contact SIGMATECH or its representative 12 sigmaTECH 7 Maintenance 7 1 GENERAL MAINTENANCE This pump as with any other machine needs to be maintained The instructions contained in this manual deal with the identification and replacement of the spare parts These instructions have been drawn up by maintenance staff and are destined for those people who are responsible for supplying spare parts Read carefully Chapter 8 Technical specifications A the parts or materials that are changed must be duly eliminated recycled in accordance with the prevailing directives in each area A ALWAYS disconnect the pump before starting out on any maintenance work 7 1 1 Check the mechanical s
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