GRS-18000-E-01
6
811SP SERIES
APPENDIX
Impeller Clearance Chart
The following table, Table B, of impeller clearances is to be used when setting the impeller clearance of
an 811SP Series pump.
Pumpage Temperature
Pump Frame Size
811SP Small Frame
811SP Medium Frame,
811SP Large Frame
-20°F to 200°F
0.010"
-20°F to 200°F
Up to 250°F
0.011"
Up to 250°F
Up to 300°F
0.012"
Up to 300°F
Up to 350°F
0.014"
Up to 350°F
Up to 400°F
0.015"
Up to 400°F
Up to 450°F
0.016"
Up to 450°F
Up to 500°F
0.017"
Up to 500°F
Table B – 811SP Series Impeller Clearances at Ambient for Various Service Temperatures
Pressure-Temperature Ratings
Chart A specifies the maximum allowable working pressure for 811SP Series pumps given the pump
material of construction and the pumping temperature.
The maximum allowable working temperature for 811SP Series pumps is 500°F.
Chart A – 811SP Series Maximum Allowable Working Pressure vs. Temperature
