SPECIAL VERSION WITH GALVANIC CORRSION PROTECTION
     In sea water, the effect of galvanic corrosion is more serious than that of ordinary corrosion, When two kinds of metals are dipped into an electrolytic liquid, a battery phenomenon occurs due to the difference in the electric potential of the two metals. In this case, the metal having the higher potential corrodes first. As an option, Tsurumi can supply pumps with parts made of higher electric potential metal as the sacrificial anode.

SPECIAL VERSION FOR HIGHER TEMPERATURE LIQUID
Standard pumps are designed for continuous running at the maximum ambient temperature of 40 ?C. In addition to these, Tsurumi can provide pumps for operation at higher liquid temperatures upon request. Refitting for operation at higher temperatures involves modification of not only the insulation of motor windings but also several components.
Two high-temperature operating models are avaitable - the Rank 60 for operation in liquids up to 60 ?C and the Rank 90 for operation in liquids up to 90 ?C. Consult your dealer for more details. (These special versions are not available for some pump models.)