A global sugar company in the UK had virtually given up on solving the problem of dust leaks in their rotary sifter room, where they had been using convoluted rubber connectors. The connectors only lasted an average of 5 days, and cleaning and plant maintenance was a constant challenge. Since installing the BFM® fitting system, however, dust has been reduced by 100% and the Chief Engineer of the company said that “you could hold a board meeting in the rotary sifter room now – it is spotless!”
Before BFM ImageBEFORE

The Challenge

The customer needed to reduce the considerable dust being generated in the rotary sifter room to both make their factory a hygienic operating environment and to reduce the very real risk of secondary explosion from sugar dust. They also wanted to significantly reduce the amount of production down-time spent replacing the rubber connectors that had an extremely short life (5 days on average).

The Solution

A coned flow-correction ring was installed on the rotary sifter to help reduce abrasion on the connector by directing sugar away from the fitting. A standard length BFM® Seeflex fitting was used with an increased diameter to accommodate for the sifter throw. In addition to the much cleaner, dust free environment, the connector life has been increased from 5 days to 9 months – a substantial saving in downtime and maintenance.

The Benefits:



Fast and efficient cleaning in between product runs means downtime has been significantly reduced.


There is no more dust leakage, eliminating cross contamination of products and reducing general housekeeping costs.


The simple snap-fit of the BFM® makes changeovers easy, and standard length always fits correctly - no metering accuracy issues.
health and safety

Health & Safety

No need for tools to remove or install the connector in difficult positions means its much safer for staff to change-over.