Our pump specialist Tom Mitchell, above, is busy at present with a variety of pump repairs. The latest involves a large, horizontal split-case water pump.
As well as the routine repair, which involves a thorough cleaning and replacement of the bearings and gaskets, he will be modifying the mechanical seal arrangement in a bid to improve it.
All the critical internal dimensions will be measured and any re-work to bring them back to tolerance will be undertaken in our machine shop. We will then balance the impeller to ensure longevity, particularly within the bearings.
Ready to go: two test rig drive motors from a large, local engineering company which were sent to Westin Drives for overhaul and service. Work by our engineers included the provision of new bearings and carbon brushes and skimming of the commutators. After the motors were painted and balanced, they were given a thorough test run and approved for dispatch.
We frequently receive pumps for repair which arrive without the volute chamber. Usually this is because it is easier to leave it in situ when removing the pump for maintenance.
As a result, our engineers can’t pressure test the mechanical seal or gaskets once the repair is complete.
It was decided to design and build a universal pressure test rig which can be adapted to suit a variety of single impeller, flange-mounted pumps up to 30kW.
We can now pressure test the repaired pumps and be certain they will go back to the customer to be re-fitted without the risk of leaks, which would lead to further downtime and costs.
Westin Drives is committed to providing a quality repair and service for customers and this pump test rig is another reason why they can have confidence in our repairs. We are always focused on ways to improve our testing capabilities and are committed to continuous improvement throughout the business.