The pumps of the BCSB range differ from those of range BCSO in their joint design. The BCSB range is equipped with the proven, closed pin joints from the seepex pumps of the BN/NS ranges. These cost-efficient and wear-resistant pin joints are filled with a special grease approved for the food sector and sealed through a resilient universal joint sleeve and holding bands. They are suited for use with abrasive conveying media and high operating pressures.