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1.Safety 

(A) 2021/11 

 

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 rotor case (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 authorized 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: 

 

Important operating failures of the machine / plant. 

 

Failure to comply with specific maintenance and repair procedures. 

 

Potential electrical, mechanical and chemical hazards. 

 

Atmospheric conditions in 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: 

 

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; 

 

The parts or lubricants used are not original INOXPA parts/lubricants; 

 

The material has been improperly used due to error or negligence or has not been used according to the indications 

and the intended purpose. 

 

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. 

 

 

 

No modification can be made to the machine without the prior consent of the manufacturer. For your 

safety, use spare parts and original accessories.  The use of other parts exempts the manufacturer 
from any and all responsibility. 

 
Any change in operating conditions can only be done with the prior written consent of INOXPA. 

 

 

In the event of doubt or should you require a fuller explanation on particular data (adjustment, assembly, disassembly...), 
please do not hesitate to contact us 

 

Summary of Contents for HLR

Page 1: ...INTENANCE INSTRUCTIONS HLR Rotary Lobe Pump INOXPA S A c Telers 54 Aptdo 174 E 17820 Banyoles Girona Spain Tel 34 972 57 52 00 Fax 34 972 57 55 02 e mail inoxpa inoxpa com www inoxpa com Original Manu...

Page 2: ......

Page 3: ......

Page 4: ...equipment Danger Electricity Danger Caustic or corrosive agents Danger Suspended loads Danger to the proper operating of the machine Obligation to ensure safety at work Use of safety goggles obligator...

Page 5: ...nt Failure to comply with specific maintenance and repair procedures Potential electrical mechanical and chemical hazards Atmospheric conditions in the room could be hazardous due to the release of ch...

Page 6: ...6 Secondary piping 11 4 7 Pressure relief valve 12 4 8 Electrical installation 12 5 Start up 5 1 Start up 13 5 2 Pressure By pass 13 6 Operating Problems 7 Maintenance 7 1 General maintenance 16 7 2 S...

Page 7: ...applications with strict hygienic requirements 3 2 OPERATING PRINCIPLE The rotary lobe pump is a positive displacement rotary pump The left lobe except in the case of pump size 0 is driven by the dri...

Page 8: ...cation for each type of pump is limited The pump was selected for a given set of pumping conditions when the order was placed INOXPA shall not be liable for any damage resulting from the incompletenes...

Page 9: ...the pump and the motor have not suffered any damage 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...

Page 10: ...y when expanding screws are used instead of foundation bolts Place base plate or frame with the aid of shims horizontally on the foundation Grout When the grout has entirely hardened the pump unit can...

Page 11: ...fitted at the pump s suction and delivery connections 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 followe...

Page 12: ...ling liquid so that unwanted chemical reactions are avoided Also check the compatibility of the flush media with seal elastomers HLR rotor cases have female threaded inlet and outlet connections and a...

Page 13: ...he 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...

Page 14: ...ed out on putting the pump into operation Check to make sure that the pump is not making any strange noises Check to see if the absolute inlet pressure is sufficient in order to avoid cavitations in t...

Page 15: ...sure Relief Valve installation This arrangement creates a dead leg with a large amount of product Example of Hygienic NCS Pressure Relief Valve installation with air actuated rising It allows pump and...

Page 16: ...eck the pressure relief valve s setting 8 Discharge pressure too high If necessary reduce the loss of head by increasing the diameter of the discharge pipe 9 Viscosity of the liquid is too high Reduce...

Page 17: ...2 Dry thread torque Material Dry thread torque N m M5 M6 M8 M10 M12 M14 M16 M18 M20 8 8 6 10 25 49 86 135 210 290 410 A2 5 9 21 42 74 112 160 210 300 7 1 3 Oiling The bearings are oiled by immersion i...

Page 18: ...r cleaning solution b Acid solution 0 5 in weight of nitric acid HNO3 to 70 C 150 F or 0 7 litres HNO3 to 53 100 l water cleaning solution Monitor the concentration of cleaning solutions it could give...

Page 19: ...ly Cleaning Before disassembling the pump clean it on the outside and on the inside NEVER clean the pump by hand when it is running 7 4 1 Pump cover disassembly CAUTION Liquid may spill from the rotor...

Page 20: ...section 7 7 Assembly and Disassembly of the Mechanical Seals 7 4 4 Rotor case disassembly Pumps Size 0 Remove the Allen screws 51B that fix the rotor case to the gear case 06 Remove the rotor case 01...

Page 21: ...e left or right position Remove the screws 52 the screws 51D at pump size 1 and washers 53A that fix the bearings cover 12 to the gear case 06 Remove the key 61A from the driveshaft 05 Remove the shaf...

Page 22: ...sure to reassemble the pump with the driveshaft 05 in the left or right position just as it was before disassembling Introduce the shaft assembly into the gear case 06 taking care when sliding the sha...

Page 23: ...ng torque 7 5 4 Assembly of mechanical seals Consult section 7 7 Assembly and disassembly of the mechanical Seals 7 5 5 Lobe assembly ALWAYS check the clearance between the lobes and lobes and rotor c...

Page 24: ...ue of any product remains in the seal or the rotor case If it is necessary to lubricate the O ring to assist in fitting it use soapy water or edible oil compatible with the material of the O ring pump...

Page 25: ...0 5 0 05 0 35 0 05 0 6 0 1 0 3 0 05 1 05 0 1 A axial clearance between the lobe and the cover B axial clearance between the lobe and the rear of the rotor case C radial clearance between the lobe and...

Page 26: ...e gears 19 and 19A do not turn in relation to each other This can be avoided by placing a wooden wedge between the gears 19 and 19A Check again the gap between the lobes 02 and turn the driveshaft 05...

Page 27: ...housed in the lobe rotor during disassembly Remove them carefully Remove the stationary parts 02 05 from the rotor case bores along Please proceed carefully Assembly Pump size 0 Fit the sleeves 13 on...

Page 28: ...o the rear of rotor case Or 4 Allen screws at pump size 0 Loosen the grub screws 09 Remove carefully the rotary holder 12 and the drive ring 10 from the shafts along Assembly Pump size 0 Fit the shaft...

Page 29: ...um viscosity allowed will depend on the nature of the liquid and the sliding speed of the seal faces Consult INOXPA should the viscosity be still greater Use special protection when the noise level in...

Page 30: ...echanical seal Rotary parts material Silicon carbide Stationary parts material Carbon Elastomers material EPDM Cooled mechanical seal Working pressure 0 5 bar 73 psi Flow rate of the circulation 2 5 5...

Page 31: ...15 8 7 5 2 5 HLR 0 25 22 4 7 5 2 5 HLR 1 25 22 4 20 6 7 HLR 1 40 35 1 20 6 7 HLR 2 40 35 1 25 6 9 HLR 2 50 47 8 25 6 9 HLR 3 50 47 8 38 5 13 HLR 3 80 72 2 38 5 13 HLR 4 100 97 6 45 6 15 HLR 4 150 150...

Page 32: ...16 2 14 73 271 102 118 9 50 9 65 67 5 227 HLR 0 25 77 280 76 5 230 HLR 1 25 165 112 25 160 40 6 21 6 19 69 289 115 135 9 85 10 105 94 5 222 HLR 1 40 75 301 94 5 228 HLR 2 40 200 140 31 190 50 8 27 24...

Page 33: ...Technical Specifications A 2021 11 HLR 4 Pump size da db dc ea eb ec ed sp tb vb vc vd ve vf vh zb zc HLR 4 100 433 225 60 110 16 58 9 55 77 8 617 256 346 18 280 9 320 161 5 491 HLR 4 150 104 666 168...

Page 34: ...R WITH COOLED MECHANICAL SEAL QUENCH DIMENSIONS 1 Quench sealing connection 4 x G1 8 Pump size cb cc cd HLR 0 20 197 40 40 HLR 0 25 HLR 1 25 189 68 32 HLR 1 40 HLR 2 40 221 82 42 HLR 2 50 HLR 3 50 295...

Page 35: ...34 8 Technical Specifications A 2021 11 8 5 HLR 0 8 5 1 Exploded view...

Page 36: ...ear 1 F 154 19A Driven shaft gear 1 F 154 25 Lobe screw 2 AISI 316L HLR 0 20 short HLR 0 25 large 35A Seal washer 8 AISI 316L 45 Wing nut 4 AISI 304 47A Protector 1 PET Plus 50 Screw 2 A2 51 Allen scr...

Page 37: ...36 8 Technical Specifications A 2021 11 8 6 HLR 1 8 6 1 Exploded view...

Page 38: ...AISI 316L HLR 1 25 short HLR 1 40 large 32 Shim SS 35A Seal washer 8 AISI 316L 45 Wing nut 4 AISI 304 47A Protector 1 PET Plus 50 Screw 2 A2 51 Allen screw 8 8 8 51A Allen screw 8 8 8 51D Allen screw...

Page 39: ...38 8 Technical Specifications A 2021 11 8 7 HLR 2 8 7 1 Exploded view...

Page 40: ...LR 2 40 short HLR 2 50 large 32 Shim SS 35A Seal washer 8 AISI 316L 45 Wing nut 4 AISI 304 47A Protector 1 PET Plus 50 Screw 2 A2 50A Countersunk screw 8 A2 51 Allen screw 8 8 8 51A Allen screw 6 A2 5...

Page 41: ...40 8 Technical Specifications A 2021 11 8 8 HLR 3 8 8 1 Exploded view...

Page 42: ...L HLR 3 50 short HLR 3 80 large 32 Shim SS 35A Seal washer 8 AISI 316L 45 Wing nut 4 AISI 304 47A Protector 1 PET Plus 50 Screw 2 A2 50A Countersunk screw 8 A2 51 Allen screw 8 8 8 52 Hex Screw 4 8 8...

Page 43: ...42 8 Technical Specifications A 2021 11 8 9 HLR 4 8 9 1 Exploded view...

Page 44: ...SI 304 47A Protector 2 PET Plus 50 Screw 4 A2 50A Countersunk screw 8 A2 51 Allen screw 8 8 8 51E Allen screw 8 A2 52 Hex Screw 4 8 8 53 Flat washer 4 A2 53A Grower washer 4 A2 54A Hexagonal nut 4 A2...

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Page 48: ...com Fax 33 320631001 Fax 61 3 5976 8882 e mail inoxpa nord fr inoxpa com e mail inoxpa au inoxpa com INOXPA ALGERIE INOXPA SOUTH AFRICA PTY LTD INOXPA USA Inc ROUIBA JOHANNESBURG SANTA ROSA Tel 213 2...

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