Sealing

To keep the oil in and water and dirt out, a drummotor is fitted with sealings. For different circumstances there are different sealings.

Mild steel drummotor

RB sealing

This is Van der Graaf's standard sealing. This type of sealing will work in most conditions. IP 66.

RBS sealing

This sealing is specifically designed for those applications where high water pressure is used for cleaning. IP 66.

HD sealing

This sealing is designed for abrasive applications, like sand, gravel and soil. IP 66.

Stainless steel drummotor

CR sealing

This is our standard IP66 sealing for stainless steel drummotors. This is a very effective, self lubricating multi labyrinth sealing combined with a Teflon sealing ring. Internal caphead bolts have been replaced by external hexagon bolts on the end caps. The oil fillerplug has been replaced by a 'smoother' profile version making cleaning of the drummotor easier and offering less places for bacteria to harbour . Please check our catalogue for dimensional differences against our standard drummotors.

UW sealing

This sealing is suitable for under water applications. The maximum depth is approx 2,5 m. This type of sealing is only available in stainless steel drummotors to IP 68.