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Berrima Diesel posted a YouTube video re P551615 3 micron 99% efficiency filter re overspray.
I indicated that I would contact Donaldson for a response.
The following information was provided by Bruce Evans | Product Manager
Donaldson Australasia Pty Ltd.
Re: Overspray in the drain valve area.
Yes, this is overspray. When we manufacture the P551615 3um filter (in a Donaldson owned and operated factory!) all the metal components are put through a washing process immediately prior to assembly. This ensures the filter is spotlessly clean, the media potting compound (glue) bonds to the end caps correctly and the filtering media is not contaminated in any way. The final processes are to paint the filter then fit the drain valve. In the past, some of the paint did enter the drain valve port and settled inside the thread and onto the bottom of the closed end of the media pack.
It is important to note this is where much of the larger the separated particulate and all the water will end up as it passes into the bowl. The fuel here is not in the flow path and virtually none of the overspray will ever reach the outer “dirty” side of the filter media, and certainly not get into the clean “inner” side of the filter.
Having said that, we have our engineers working on improving our manufacturing process to eliminate this overspray. This process is still ongoing, and we expect this to be completely resolved shortly.
What really matters is the cleanliness of the fuel leaving the filter. Our filter states that it removes 3um particles at 99% efficiency, and we stand by that specification.
Bruce also indicated that Donaldson’s Managing Director has extended an invitation to Berrima Diesel to visit the Wyong manufacturing facility to show how Donaldson filters are manufactured, and the continual improvement and quality processes used, both here, and in Donaldson manufacturing facilities. The invitation has not been accepted.
As stated previously I have no connection to Donaldson
Hill
I indicated that I would contact Donaldson for a response.
The following information was provided by Bruce Evans | Product Manager
Donaldson Australasia Pty Ltd.
Re: Overspray in the drain valve area.
Yes, this is overspray. When we manufacture the P551615 3um filter (in a Donaldson owned and operated factory!) all the metal components are put through a washing process immediately prior to assembly. This ensures the filter is spotlessly clean, the media potting compound (glue) bonds to the end caps correctly and the filtering media is not contaminated in any way. The final processes are to paint the filter then fit the drain valve. In the past, some of the paint did enter the drain valve port and settled inside the thread and onto the bottom of the closed end of the media pack.
It is important to note this is where much of the larger the separated particulate and all the water will end up as it passes into the bowl. The fuel here is not in the flow path and virtually none of the overspray will ever reach the outer “dirty” side of the filter media, and certainly not get into the clean “inner” side of the filter.
Having said that, we have our engineers working on improving our manufacturing process to eliminate this overspray. This process is still ongoing, and we expect this to be completely resolved shortly.
What really matters is the cleanliness of the fuel leaving the filter. Our filter states that it removes 3um particles at 99% efficiency, and we stand by that specification.
Bruce also indicated that Donaldson’s Managing Director has extended an invitation to Berrima Diesel to visit the Wyong manufacturing facility to show how Donaldson filters are manufactured, and the continual improvement and quality processes used, both here, and in Donaldson manufacturing facilities. The invitation has not been accepted.
As stated previously I have no connection to Donaldson
Hill
Driving Pajero number three.
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