Refurbish from scrap.
A complete Package for Pump Service, Repair and Protection.
- Severe corrosion/erosion damage in areas such as volutes, cutwaters, neck rings and reprofiling of water passages.
- Coating machined areas such as neck ring joints and returning coated components to original tolerances, facilitating the return of good pumping efficiency.
- Sophisticated mechanical engineering capabilities including the refurbish of impellers and the manufacture of shafts as well as metal stitching techniques.
Chemical Industry: Vertical seawater pump refurbish (Φ600)
There were no manufacturer’s spare parts and the delivery time was very short to complete this project, so we had to rebuild these parts.
![](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-01.png)
![](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-02.png)
![](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-03.png)
![](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-04.png)
(Work Scope):
Refurbish of bowl Casing, Case seal, bearing, flange, guide blade and other molding
Bell suction flange refurbish and shape molding
This project was completed within 2 weeks.
Steel Industry: Refurbish and lifespan extension of 2-stage pump.
Before coating
![](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-05.png)
![](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-06.png)
Molding process: Welding
![成形処理 溶接](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-07.png)
![成形処理 溶接](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-08.png)
Reinforcement treatment: Thermal spraying
![補強処理 溶射](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-09.png)
![補強処理 溶射](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-10.png)
Coating application
![コーティング処理](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-11.png)
![コーティング処理](https://corrocoat.co.jp/wp-content/uploads/2021/11/img-pump-repare-12.png)
〔 Work scope 〕
Repair and refurbish: Welding repair and machining damaged parts.
Sealing treatment: Plasmet T coating (improved corrosion resistance)
Life span: Surface hardness thermal spraying application.
Inspection: After repair completion, dynamic balance test.
One Point
Providing long-term performance, Corrocoat’s ability to combine mechanical engineering with advanced polymer technology allows even severely damage pumps to be refurbished at a fraction of the replacement cost, often without expensive replacement parts.