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> Edwards dry vacuum pump IQDP80 QMB500 rebuilt
Edwards dry vacuum pump IQDP80 QMB500 rebuilt
Edwards Dry Vacuum Pump iQDP80 QMB500
Edwards QDP Dry Pump Repair Process
1. Motor winding resistance check
2. Motor temperature resistance check
3. Water cooling coils tested for obstruction
Additional testing on the external components is as follows:
1. Module temperature resistance check
2. Water cooling valve tested for obstruction and functionality
3. N2 modules tested for proper operation
4. N2 lines cleaned and free of any obstructions
The pump module, motor and exhaust silencer are completely disassembled to their primary components and decontaminated. All components are thoroughly inspected for blemishes and defects.
All claw rotors and sleeves are dispatched to a coating company and recoated to OEM specifications. We have used this particular coating company for 10+ years in this process and their quality is exceptional. The coating is precisely what is used by the OEM, Edwards.
Prior to the assembly process, all Teflon coated claw rotors and sleeves are measured against OEM specifications. The X and Y shafts are measured for straightness and the seal sleeves are replaced with new. The equipment is then assembled according to company specific work instructions. These instructions include the proper parts and tooling required for the repair.
All Soft components are replaced during the repair process. A Soft component consists of any part that is susceptible to wear that is not part of the basic module. A list of Soft components in the repair process of an Edwards Dry Pump will consist on the following:
1. All bearings are replaced with new, module and motor.
2. All o-rings are replaced with new.
3. All gaskets are replaced with new. Please make note that there are no gaskets on the newer dry pumps but this is applicable on the older DP line.
4. All shaft seals are replaced with new.
5. All non-coated sleeves are replaced with new sleeves. This includes the lobe seal sleeves, the exhaust seal sleeves and the motor sleeve.
6. Shims are replaced as necessary according to the gap requirements needed during the repair process.
7. Note all Items are purchased from the OEM. Precision Plus/BOC Edwards.
Once the module is assembled, it is helium leak checked. Once assured that the unit is leak tight, the module is quick tested to ensure that the unit meets the performance specifications. Upon completion of the quick test, the module is painted and placed back into its original framing including any accessories required.
Once the final assembly process is complete, the equipment again is helium leak checked as a complete assembly. Upon leak check completion, the complete assembly is then tested for a minimum of 36 hours. During this testing process, the equipment is measured for the following:
All sensors and switches are tested for integrity. The common sensors and switches are the following:
2. N2 Flow Sensor, (Gas Ballast and Exhaust Module)
5. Temperature Switch, (Motor and Module)
7. Any additional sensors and switches not indicated above are also tested at this time
* Condition: Rebuilt with 180 day warranty
