Viking Pump TSM280: Duralobe (Discontinued) - Manual (Page 66)

Page : 64
iv) Double Mechanical Seal (For High Pressure Flush).
Refer to section 4.3.4.
This seal arrangement requires a supply of media to be circulated between
the inboard and outboard mechanical seals. The flush media must be supplied
at a flowrate of three litres per minute per shaft seal assembly (0.8 US Gal per
min). The flush pressure must be a minimum of 15 psi greater than the
maximum discharge pressure created by, or the maximum suction
pressure applied to, the pump, whichever is the greater.
Note : The limiting flush pressure in any application is 240 psi.
v) Double O-ring Seal (For High Pressure Flush).
Refer to section 4.3.6.
This seal arrangement requires a supply of media to be circulated between
the inboard and outboard o-rings. The flush media must be supplied at a
flowrate of three litres per minute per shaft seal assembly (0.8 US Gal per
min). The flush pressure must be a minimum of 15 psi greater than the
maximum discharge pressure created by, or the maximum suction
pressure applied to, the pump, whichever is the greater.
Note : The limiting flush pressure in any application is 240 psi.
WARNING
WARNING