Related Manuals for Pomac Pumps PLP
Summary of Contents for Pomac Pumps PLP
- Page 1 User manual Lobe pump PLP Pomac bv - Feithspark 13 - 9356 BX Tolbert - The Netherlands Tel +31(0) 594 512877 - Fax +31(0) 594 517002 info@ pomacpumps.com - www.pomacpumps.com...
- Page 2 User manual Pomac PLP Lobe pump This manual was published :..........and belongs to: Pump serial number Capacity Pressure NPSH-r Drive supplier Type Speed / Voltage Frequency Current Power Isolation class Protection class ATEX Zone Coupling supplier Type...
- Page 3 User manual Pomac PLP Lobe pump This manual has been compiled with the utmost care. However, POMAC assumes no liability for possible deficiencies of the information in this manual. It is the responsibility of the buyer/user of this pump to ensure this information is complete and up-to-date.
- Page 4 User manual Pomac PLP Lobe pump DECLARATION OF INCORPORATION (according to Annex II 1 B of the Machinery Directive (2006/42/EC – 1st Edition – December 2009) Pomac bv Feithspark 13 9356 BX Tolbert The Netherlands hereby declares completely under own responsibility that the pump mentioned below:...
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Page 5: Table Of Contents
User manual Pomac PLP Lobe pump Table of contents Introduction ............................7 1.1. General information ........................7 1.2. Warranty ............................ 7 1.3. Transport and receipt ........................ 7 1.4. Manufacturer ..........................7 Safety ............................... 8 2.1. General information ........................8 2.2. - Page 6 9.4. Sectional drawing ........................45 9.5. Parts lists ..........................46 9.5.1. Part list with article numbers PLP 1 ................. 46 9.5.2. Part list with article numbers PLP 15 ................47 9.5.3. Part list with article numbers PLP 2 ................. 48 9.5.4.
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Page 7: Introduction
User manual Pomac PLP Lobe pump Introduction 1.1. General information This manual provides important information regarding the correct way of installing, operating and servicing this pump. This manual also provides information necessary to prevent the installer/operator from injury or discomfort during installation and operation of this pump and to ensure the correct use and reliable performance of this pump. -
Page 8: Safety
User manual Pomac PLP Lobe pump Safety 2.1. General information This manual provides information necessary to prevent the installer/operator from injury or discomfort during installation and operation of this pump and to ensure the correct use and reliable performance of this pump. -
Page 9: General Information
PLPS in case of split pump casing. Example: PLP 2-2 / M / 01 / 01 / M1 / V / V / P2 / S1 / C1 / O1 / G1 / H1 / V1 / R1 / W1 1. - Page 10 User manual Pomac PLP Lobe pump The codes at pos. .. determine the position of the suction connection. For horizontal pump position: For vertical pump position: R = suction position at right hand side, seen from shaft end. T = suction position = top L = suction position at left hand side, seen from shaft end.
- Page 11 User manual Pomac PLP Lobe pump 8. Position connections and shaft = connections horizontal, shaft top = standard, = connections horizontal, shaft bottom = connections vertical, shaft right hand from shaft end = connections vertical, shaft left hand from shaft end 9.
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Page 12: Operating Principle
User manual Pomac PLP Lobe pump 3.2. Operating principle A lobe pump is a rotary positive displacement pump. The operating principle is based on the counter-rotation of 2 rotors in a chamber. Both rotors are mounted on shafts. The shafts are supported by bearing cartridges, which are directly mounted to the pump casing. -
Page 13: Construction
User manual Pomac PLP Lobe pump 3.5. Construction The pump comprises of the following parts: CE/PLP (1406) EN-12... -
Page 14: Safety Valve (Optional)
3.6. Safety valve (optional) 3.6.1. Safety valve types The PLP can be supplied with a spring-loaded or air-operated safety valve. The opening pressure is adjustable by means of a setscrew. The following types can be provided with a safety valve: PLP 1-3/4 PLP 2-1.5... -
Page 15: Installation
User manual Pomac PLP Lobe pump Installation 4.1. General information ⚫ The foundation must be solid, flat and level. ⚫ The area, in which the pump is placed, must be well vented. Too high a temperature or air humidity, or a dusty atmosphere, may have negative effects on the performance of an electric motor. -
Page 16: Safety
User manual Pomac PLP Lobe pump ⚫ In case a single pump must be hoisted, fix the straps as follows: 4.4. Safety Never insert fingers into the rotor case or into the connection ports. Even manually rotating the shaft can cause injury! -
Page 17: Piping
User manual Pomac PLP Lobe pump 4.7. Piping The piping must meet the following requirements: General ⚫ Ensure the piping is sufficiently supported, especially besides the inlet and outlet ports. The piping should be fully supported independently from the pump. -
Page 18: Pump With Safety Valve
User manual Pomac PLP Lobe pump ⚫ For systems that convey liquid under vacuum, a non-return valve in the delivery line is recommended. This prevents backflow of air or liquid. 4.8. Pump with safety valve If the pump is provided with a safety valve to the pump cover, it is compulsory to install a pressure gauge at pressure side and a shut-off valve directly after the pressure gauge! ⚫... -
Page 19: Alignment Tolerances
User manual Pomac PLP Lobe pump 4.11. Alignment tolerances The following table with its corresponding figure shows the tolerance limits for aligning the coupling. Max difference Coupling outer A must be between E must be between between A max and... - Page 20 User manual Pomac PLP Lobe pump Flushing ⚫ When equipped with shaft seal type M1, M2 or O2: Connect the flush pipes to the shaft seal chamber, through the openings in the rotor case. The connections are threaded R1/8. ⚫...
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Page 21: Flushing The System
User manual Pomac PLP Lobe pump 4.13. Flushing the system The system must ALWAYS BE FLUSHED! Not only BEFORE INSTALLING the pump, but AFTER EACH ACTIVITY DURING WHICH THE SYSTEM HAD TO BE OPENED, e.g. replacement of valves or piping segments! - Page 22 User manual Pomac PLP Lobe pump Once the system is clean: 9. Unscrew the cap nuts and remove the front cover and the O-ring. 10. Remove the rotor retainers and remove both dummy-rotors from the shafts. 11. Remove the shaft sleeve or the rotating seal part from the dummy-rotors and refit them in the rotors.
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Page 23: Establishing The Direction Of Rotation
User manual Pomac PLP Lobe pump 4.14. Establishing the direction of rotation Never operate the pump without front cover or without being connected to the piping! ⚫ Before connecting the drive to the power supply, the correct direction of rotation of the drive shaft must be established. -
Page 24: Operation
User manual Pomac PLP Lobe pump Operation 5.1. Checking ⚫ Check if the gearbox is sufficiently filled with oil. The oil level must be visible through the oil sight glass of the gearbox. The pump may never operate if the gearbox is not filled with oil! ⚫... -
Page 25: Adjusting An Air Loaded Safety Valve
User manual Pomac PLP Lobe pump 5.3.2. Adjusting an air loaded safety valve 1. Ensure the shut-off valves in the pressure line, and possibly in the suction line, are completely opened. The system must be filled with the liquid to be pumped. -
Page 26: In Operation
User manual Pomac PLP Lobe pump 5.4. In operation Never operate a pump with a shut-off discharge valve or a blocked discharge line, if no pressure relief valve is fitted! If a pressure relief valve is fitted, do not allow the pump vent through it for long! A pressure relief valve is a safety device and not a flow control! Avoid extreme temperature fluctuations of the pumped liquid. -
Page 27: Maintenance
User manual Pomac PLP Lobe pump Maintenance 6.1. General survey Check regularly: ⚫ if the pump functions properly. Excessive noise may indicate problems like worn-out bearings, gear trouble, dragging of the rotors or cavitation. ⚫ if applicable: pressure and flow of the flushing system. -
Page 28: Disassembly / Assembly
User manual Pomac PLP Lobe pump Disassembly / assembly 7.1. Ordering spare parts When ordering spare parts the following information must be supplied: ⚫ the serial number: this can be found on the pumps' type plate and on the first page of this manual ⚫... -
Page 29: Draining The Pump
6. Loosen the connections of the discharge and suction ports. Ensure the piping is sufficiently supported! 7. Remove the retaining bolts and remove the pump from the baseplate. Pump types PLP 2, 3 and 4 are too heavy to lift by hand. Use a proper hoisting device. See paragraph 4.3 for hoisting instructions. - Page 30 User manual Pomac PLP Lobe pump 4. Block the rotors against co-rotation using a proper fitting wooden or plastic dowel. 5. Remove both rotors (35) from the shafts. Shaft seal disassembly 6. The rotary seal faces of the mechanical seals are fitted in the slots in the rotors already disassembled.
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Page 31: Disassembly Of A Safety Valve
User manual Pomac PLP Lobe pump Gearbox disassembly Proceed as follows to disassemble the gearbox. 12. Remove the key (22) from the drive shaft (23). 13. Remove the Allen screws (31) and remove the gearbox cover (28) from the rotor case. -
Page 32: Disassembly Of An Air Loaded Safety Valve
User manual Pomac PLP Lobe pump 7.8.2. Disassembly of an air loaded safety valve For explanation of the item numbers see the sectional drawing and parts list in paragraph 9.10. Disassembly of a safety valve may ONLY be done on a shut down pump, which is cooled down and vented! 1. -
Page 33: Gearbox Assembly
User manual Pomac PLP Lobe pump 7.10. Gearbox assembly See the sectional drawing with parts list in paragraph 9.4 for explanation of the item numbers. For the shaft seals see paragraph 9.7. If the pump is provided with QUATTRO LOBES, the LOBE TIMING must always be readjusted after every occasion the bearings have been disassembled! See paragraph 7.14 ! - Page 34 User manual Pomac PLP Lobe pump 9. Fit a tab washer (19) to each shaft. 10. Fit the lock nuts (20) to the shafts. Tighten them to the correct torque, see following table: Type Torque [Nm] PLP 1 1,3 Nm...
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Page 35: Adjusting The Axial Rotor Clearance
User manual Pomac PLP Lobe pump 14. Fit a bearing cartridge (15) to the rotor case, using Allen screws (14). 15. Fit the second bearing cartridge to the rotor case, using Allen screws. Ensure the marks on the gears correspond with each other! 16. - Page 36 User manual Pomac PLP Lobe pump 8. Check both to ensure clearance A comes within the following values: Type clearance A PLP 1 0,08 - 0,14 mm PLP 15 0,095 - 0,175 mm PLP 2 0,12 - 0,20 mm PLP 3...
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Page 37: Shaft Seal Assembly
User manual Pomac PLP Lobe pump 7.12. Shaft seal assembly 7.12.1. Single mechanical seal assembly, types M1, M3 and M4 See paragraph 9.5.1 for drawing and part list with item numbers. 1. Fit the seal seat (7F) into the rotor case. The tabs of the bush must fit into the slots of the seal cover. -
Page 38: Lip Seal Assembly, Type L
User manual Pomac PLP Lobe pump 7.12.4. Lip seal assembly, type L See paragraph 9.5.5 for drawing and part list with item numbers. 1. Fit the seal seat (7F) into the rotor case. The tabs of the bush must fit into the slots of the seal cover. -
Page 39: Adjusting The Timing Of 'Quattro Lobes
User manual Pomac PLP Lobe pump 7.14. Adjusting the timing of ‘quattro lobes’ If the pump is provided with so-called “quattro-lobes”, they must be adjusted with regard to each other. Act as follows: 1. Ensure the Allen screws of the driven gear (see figure) are not completely tightened. -
Page 40: Gearbox Assembly
User manual Pomac PLP Lobe pump 7.16. Gearbox assembly See paragraph 9.4 for drawing and parts list of the referenced parts. 1. Place a new gasket (11) into the gearbox cover (28). 2. Fit the gearbox cover to the rotor case with Allen screws (31). -
Page 41: Assembly Of A Safety Valve
User manual Pomac PLP Lobe pump 7.17. Assembly of a safety valve 7.17.1. Assembly of a spring-loaded safety valve See paragraph 9.9 for the drawing and parts list. 1. Put the pump cover flat down. 2. Lubricate the O-ring lightly with some food compatible grease, fit it around the plunger and push the plunger into the hole in the pump cover. -
Page 42: Closing Down
User manual Pomac PLP Lobe pump Closing down 8.1. Dismantling See paragraph 7.6 for dismantling instructions. 8.2. Storage ⚫ If the pump is going to be stored, the pump shaft must be rotated manually once a month. ⚫ If the pump is to be stored for a long period of time, it must be done so on a vibration-free base. -
Page 43: Technical Data
User manual Pomac PLP Lobe pump Technical data 9.1. Oil types Recommended oil types for the gearbox are: Examples of recommended oil types Make Type Shell Cassida Fluid GL 220 Energol GR-FG 220 Recommended characteristics Ambient temperature Grade -18 °C to 0 °C EP 150 0 °C to 30 °C... -
Page 44: Dimensions
User manual Pomac PLP Lobe pump 9.3. Dimensions TYPE CA CB FA1 FA2 FB FC1 FC2 FD FE FF FG PB SA SB SE1 SE2 SE3 PLP1-¾ NW15 84 65,5 114 168 50 19 9 41,5 177,5 219 30 25x5 137 111,5 56,5 1“... -
Page 45: Sectional Drawing
User manual Pomac PLP Lobe pump 9.4. Sectional drawing CE/PLP (1406) EN-12... -
Page 46: Parts Lists
User manual Pomac PLP Lobe pump 9.5. Parts lists 9.5.1. Part list with article numbers PLP 1 ARTICLE NR. ITEM. QUANTITY DESCRIPTION PLP 1-3/4 PLP 1-1 PLP 1-1 1/2 Cap nut 051.022-08-000-5 051.022-08-000-5 051.022-08-000-5 Stud 051.073-08-020-5 051.073-08-020-5 051.073-08-020-5 Pump cover 700.117-000... -
Page 47: Part List With Article Numbers Plp 15
User manual Pomac PLP Lobe pump 9.5.2. Part list with article numbers PLP 15 ARTICLE NR. ITEM. QUANTITY DESCRIPTION PLP 15-2 Cap nut 051.022-10-000-5 Stud P-000-001-527 Front cover 700.517-000 O-Ring Pump cover EPDM P-000-001-524 O-Ring Pump cover FKM P-000-001-793 Rotor retainer 700.118-000... -
Page 48: Part List With Article Numbers Plp 2
User manual Pomac PLP Lobe pump 9.5.3. Part list with article numbers PLP 2 ARTICLE NR. ITEM. QUANTITY DESCRIPTION PLP 2-1,5 PLP 2-2 PLP 2-2,5 Cap nut 051.022-12-000-5 051.022-12-000-5 051.022-12-000-5 Stud 051.073-12-030-5 051.073-12-030-5 051.073-12-030-5 Front cover 700.217-000 700.217-000 700.217-000 O-Ring Pump cover EPDM 051.741-100041... -
Page 49: Part List With Article Numbers Plp 3
User manual Pomac PLP Lobe pump 9.5.4. Part list with article numbers PLP 3 ARTICLE NR. ITEM. QUANTITY DESCRIPTION PLP 3-2 PLP 3-3 PLP 3-4 Cap nut 051.022-16-000-5 051.022-16-000-5 051.022-16-000-5 Stud 051.073-16-045-5 051.073-16-045-5 051.073-16-045-5 Front cover 700.317-000 700.317-000 700.317-000 O-Ring Pump cover EPDM 051.741-100042... -
Page 50: Part List With Article Numbers Plp 4
User manual Pomac PLP Lobe pump 9.5.5. Part list with article numbers PLP 4 ARTICLE NR. ITEM. QUANTITY DESCRIPTION PLP 4-4 Cap nut 051.022-16-000-5 Stud 051.073-16-050-5 Front cover 700.417-000 O-Ring Pump cover EPDM 051.741-100043 O-Ring Pump cover FKM 051.760-100043 Rotor retainer 700.418-000... -
Page 51: Materials Specification
User manual Pomac PLP Lobe pump 9.6. Materials specification Item Description Materials Werkstoff Nr. Front cover AISI 316 L 1.4404 Rotor retainer AISI 316 L 1.4404 Bearing cartridge Cast steel Right hand gear 34CrNiMo6 1.6582 Left hand gear 42CrMo4 1.7225 Drive shaft X-2 CrNiMoN 22-5-3 1.4462... -
Page 52: Shaft Seals
700.250-005 700.350-005 700.450-005 SEAL SEAT 700.150-006 700.250-006 700.350-006 700.450-006 SEAL COVER 700.150-007 700.250-007 700.350-007 700.450-007 4/6 *) ALLEN SCREW 051.000-04-012-5 051.000-05-012-5 051.000-06-016-5 051.000-08-020-5 *) PLP1, PLP15, PLP 2 and PLP 3: quantity 4, PLP 4: quantity 6 CE/PLP (1406) EN-12... -
Page 53: Single Mechanical Seal , Type M4
700.250-005 700.350-005 700.450-005 SEAL SEAT 700.150-006 700.250-006 700.350-006 700.450-006 SEAL COVER 700.150-007 700.250-007 700.350-007 700.450-007 4/6 *) ALLEN SCREW 051.000-04-012-5 051.000-05-012-5 051.000-06-016-5 051.000-08-020-5 *) PLP1, PLP15, PLP 2 and PLP 3: quantity 4, PLP 4: quantity 6 CE/PLP (1406) EN-12... -
Page 54: Double Mechanical Seal, Type M2
051.741-100024 O-RING VITON 051.760-100001 051.760-100008 051.760-100015 051.760-100024 SEAL COVER 700.150-007 700.250-007 700.350-007 700.450-007 4/6 *) ALLEN SCREW 051.000-04-012-5 051.000-05-012-5 051.000-06-016-5 051.000-06-016-5 *) PLP 1, PLP15 and PLP 2: quantity 4, PLP 3 and PLP 4: quantity 6 CE/PLP (1406) EN-12... -
Page 55: Double Mechanical Seal, Type M5
051.741-100024 O-RING VITON 051.760-100001 051.760-100008 051.760-100015 051.760-100024 SEAL COVER 700.150-007 700.250-007 700.350-007 700.450-007 4/6 *) ALLEN SCREW 051.000-04-012-5 051.000-05-012-5 051.000-06-016-5 051.000-06-016-5 *) PLP 1, PLP15 and PLP 2: quantity 4, PLP 3 and PLP 4: quantity 6 CE/PLP (1406) EN-12... -
Page 56: Double Mechanical Seal, Type M6
051.741-100024 O-RING VITON 051.760-100001 051.760-100008 051.760-100015 051.760-100024 SEAL COVER 700.150-007 700.250-007 700.350-007 700.450-007 4/6 *) ALLEN SCREW 051.000-04-012-5 051.000-05-012-5 051.000-06-016-5 051.000-06-016-5 *) PLP 1, PLP15 and PLP 2: quantity 4, PLP 3 and PLP 4: quantity 6 CE/PLP (1406) EN-12... -
Page 57: Double Mechanical Seal, Type M7
051.741-100024 O-RING VITON 051.760-100001 051.760-100008 051.760-100015 051.760-100024 SEAL COVER 700.150-007 700.250-007 700.350-007 700.450-007 4/6 *) ALLEN SCREW 051.000-04-012-5 051.000-05-012-5 051.000-06-016-5 051.000-06-016-5 *) PLP 1, PLP15 and PLP 2: quantity 4, PLP 3 and PLP 4: quantity 6 CE/PLP (1406) EN-12... -
Page 58: Single O-Ring Seal, Type O1
051.760-100033 SEAL SEAT 700.153-005 700.253-005 700.352-005 700.452-005 SEAL COVER 700.150-007 700.250-007 700.350-007 700.450-007 4/6 *) ALLEN SCREW 051.000-04-012-5 051.000-05-012-5 051.000-06-016-5 051.000-08-020-5 *) PLP 1, PLP15 and PLP 2: quantity 4, PLP 3 and PLP 4: quantity 6 CE/PLP (1406) EN-12... -
Page 59: Double O-Ring Seal, Type O2
700.352-005 700.452-005 EPDM 051.741-000061 051.741-000044 051.741-000022 051.741-000033 O-RING VITON 051.760-000061 051.760-000044 051.760-000022 051.760-000033 4/6 *) ALLEN SCREW 051.000-04-012-5 051.000-05-012-5 051.000-06-016-5 051.000-08-020-5 *) PLP 1, PLP15 and PLP 2: quantity 4, PLP 3 and PLP 4: quantity 6 CE/PLP (1406) EN-12... -
Page 60: Lip Seal, Type L3
051.741-100022 O-RING VITON P-000-002-125 051.760-100044 051.760-100022 SEAL SEAT 700.154-005 700.254-005 700.354-004 SEAL COVER 700.150-007 700.250-007 700.350-007 4/6 *) ALLEN SCREW 051.000-04-012-5 051.000-05-012-5 051.000-06-016-5 *) PLP 1, PLP 15 and PLP 2: quantity 4, PLP 3: quantity 6 CE/PLP (1406) EN-12... -
Page 61: Spring Loaded Safety Valve
User manual Pomac PLP Lobe pump 9.8. Spring loaded safety valve Article numbers PLP 1 PLP 2 PLP 3 PLP 15 Item Quantity Description PUMP COVER 700.117-002 700.217-002 700.317-002 700.517-004 EPDM 051.741.000013 051.741.000025 051.741.000035 051.741.000013 RING VITON 051.760.000013 051.760.000025 051.760.000035 051.760.000013... -
Page 62: Air Loaded Safety Valve
Casing for air-loaded safety valve PLP 4 700.409-105 Stud M16x45 A2 051.073.-16-045-5 Hexagon bolt M16x110 A2 051.001.-16-110-5 O-ring P-000-002-095 O-ring P-000-002-090 O-ring P-000-002-105 O-ring P-000-002-097 O-ring P-000-002-092 O-ring P-000-002-095 Allen screw M12x65 A2 051.000.-12-065-5 Pump cover for air-loaded safety valve PLP 4 700.417-007 CE/PLP (1406) EN-12... -
Page 63: Trouble Shooting
User manual Pomac PLP Lobe pump 10. Trouble shooting A malfunction in a pump system may have various causes. The malfunction is not always necessarily in the pump itself, but can also be caused by a malfunction in the piping system, or in another appendage in the system. - Page 64 User manual Pomac PLP Lobe pump Fault Cause Action reverse direction of rotation wrong direction of rotation of drive vent suction line and rotor pump is not filled with liquid case and prime rotor case with liquid Enlarge diameter of suction...
- Page 65 User manual Pomac PLP Lobe pump Index Adjusting the clearance, 35 Oil, 23, 27, 29, 43 Alignment tolerances, 19 Oil change, 27 Allen screw, 31, 35, 39, 40 Oil draining, 29 Application area, 12 oil fill plug, 23, 40, 41...
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