This company has upgraded the 4-in. model of its NP Series sliding vane pump with optional electric heating. The completion of the 4-in size follows other sizes in the series with this option. Electric heating can be used in place of jacketed heads to provide pump heating for applications that normally require jackets, such as handling asphalt, bitumen, molasses and lubrication oils. — Blackmer, Grand Rapids, Mich.
A pump that can provide electrical heating
| By Scott Jenkins