NASH quickly reverse engineers a laser etched seal face to ensure a pump repair is not delayed by a long lead time from the seal OEM.
Client challenge
Rotating equipment specialists and operators often experience a poor aftermarket response from seal OEMs. This is particularly true for engineered seal designs incorporating a dry running outboard containment seal with a laser etched stationary seal face.
In this case, the laser etched outboard stationary seal ring of a Flowserve QB/GSL tandem cartridge seal was damaged beyond repair (see inset above) and needed replacing along with other key components.
Our response
NASH’s workshop inspection revealed:-
- Wear and damage to all four seal faces
- Significant crevice corrosion in the sleeve bore o-ring groove
Workscope
- The dimensions of the outboard stationary seal ring, including etched profile, were established swiftly and a replacement face was manufactured in under three weeks
- Replacement inboard seal faces, outboard rotary seal ring and shaft sleeve were also manufactured and all elastomers and fasteners were replaced automatically
Benefits
Our comprehensive service for this type of engineered mechanical seal ensured that the pump could be returned to service in the required lead time.
Please feel free to contact us if you would like to discuss how we repaired this seal in more detail.