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Summary of Contents for Pompetravaini TRHA 150
- Page 1 (Rev. 2.1_06-2022) DISASSEMBLY & ASSEMBLY INSTRUCTIONS FOR LIQUID RING VACUUM PUMPS WITH MECHANICAL SEALS TRHA 150 TRSA 200...
- Page 2 In preparing this manual, every possible effort has been made to help the customer and operator with the proper installation and operation of the pump. Should you find errors, misunderstandings or discrepancies please do not hesitate to bring them to our attention. Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200...
- Page 3 Parts that are not from Pompetravaini should be inspected for full interchangeability and dimension accuracy. Clean all parts that are to be reused. See chapters 2 and 3 for mechanical seals and bearing's assembly. Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200...
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Page 4: Mechanical Seal Assembly
Using a suitable sleeve “B” push the seal rotating part over the shaft till it comes to rest against the shaft shoulder or spacer. Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200... - Page 5 After assembling the whole pump check that shaft VDMA 210 in its final and correct position then tighten the seal set screws to the shaft. Remove the spacer clips from the seal cartridge that have facilitated positioning the seal cartridge. Fig. 5 Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200...
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Page 6: Bearing Assembly
Tab. 6 - BEARING ASSEMBLY - DRIVE END COMPONENT VDMA No. QUANTITY Tab. 7 - BEARING ASSEMBLY - NON-DRIVE END COMPONENT VDMA No. 360.1 QUANTITY Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200... -
Page 7: Bearing Lubrication
Grease quantity per bearing or pair-of bearing is listed in tab. 7. Grease frequency may be increased depending upon the severity of temperatures and bearing loads. Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200... - Page 8 STEP IV COMPONENT VDMA No. 400.2 400.4 110.2 400.2 914.1 137.1 400.5 QUANTITY MODELS SERIE TRHA 150-3100 & TRHA TRSA 200-3100 ONLY ONLY Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200...
- Page 9 RECOMMENDED MATERIALS (mm) (mm) INITIAL CLEARANCES GH - F - RA 0,40 to 0,50 0,80 to 1,00 0,50 to 0,60 1,00 to 1,20 Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200...
- Page 10 The shoulder ring to be added (over and above the standard VDMA 505.1) has a thickness of “X” less the amount of material removed from the suction port plate 12 or 6. Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200...
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Page 11: Pump Assembly
Impeller blades must point to the rotation of the pump; normally clockwise when viewed from drive-end side. For special designs, with counter clockwise rotation, the impeller blades will point to the left (see fig. 15 or 16). Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200... - Page 12 19 to 22. Place gasket VDMA 400.2 then impeller casing VDMA 110 on suction casing, (for TRHA 150-3100 or TRSA 200-3100 this is made in 2 pieces with gasket VDMA 400.4 in between).
- Page 13 Remove the “dummy bearings” and bearing housings VDMA 357. Install mechanical seals per chapter 2 and bearings per chapter 3 (see fig. 24 or 25). Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200...
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Page 14: Parts List
Tie-bolt with nuts and washers 433.2 Mechanical seal Screw Mechanical seal housing 914.1 Screw Mechanical seal cover Spacer ring Lockring Shoulder ring 505.1 Shoulder ring 940.1 Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200... - Page 15 Fig. 27 - TYPICAL SECTIONAL DRAWING WITH “A CARTUCCIA” MECHANICAL SEALS - Series TRHA 150 Z = Liquid supply inlet = Pump type TRHA 150-3100 only Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200...
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Page 16: Recommended Spare Parts
1 Complete shaft 1 Set of bearings 1 Set of mechanical seals 1 Set of gaskets 1 Set of shoulder rings for bearings Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200... - Page 17 Directive. As a consequence, conforming to article 14 of the 2012/19/UE Directive of the European Parliament of the 4th of July 2012, Pompetravaini Spa is registered on the Italian list of EEE manufacturer. The electrical pump assembly supplied by Pompetravaini Spa that should be discontinued from use must not be disposed with common waste because it is composed of different materials that can be recycled at the appropriate facilities.
- Page 18 (blank page) Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200...
- Page 19 Installed Power ..................RPM ......A ....kW / ....hp Frequency Supply Enclosure Insulation Class Absorbed Power ......Hz ......Volt IP................kW / ....hp COMMENTS Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200...
- Page 20 Continuing research of POMPETRAVAINI results in product improvements: therefore, any specification may subject to change without notice. 20022 CASTANO PRIMO (Milano) ITALY Via per Turbigo, 44 Tel. +39 0331 889000 www.pompetravaini.com Disassembly and assembly instructions for liquid ring vacuum pumps with mechanical seals TRHA 150 – TRSA 200...
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