Stuffing box Of The Vertical Turbine Pumps (VTP pumps)

Some Vertical Turbine Pumps (VTP pumps) are fitted with stuffing boxes. In such cases, stuffing boxes are normally adequate for working pressures up to 20.7 bar (300 psi). Refer to stuffing box User Instructions for specifications.

a) Low pressure stuffing box

This type of packing box is fitted on to an open lineshaft for pressures less than 6.5 bar (100 psi) and used only on Cast head- for horizontal above the ground discharge (see Section a) to see for Cast head- for horizontal above the ground discharge detail).

b) High pressure stuffing box

This type of packing box is fitted on to an open lineshaft for pressures up to 20 bar (300 psi) uses six rings of packing with two lantern rings and allows grease lubrication.