Goulds Pumps JC Installation, Operation And Maintenance Instructions page 18

Operation
CAUTION: Driver may overload if the pumpage specific gravity (density) is greater than
originally assumed, or the rated flow rate is exceeded
CAUTION: Always operate the pump at or near the rated conditions to prevent damage
resulting form cavitation or recirculation
WARNING: Do not operate pump below minimum rated flows or with suction and/or discharge
valve closed. These conditions may create an explosive hazard due to vaporization of
pumpage and can quickly lead to pump failure and physical injury.
CAUTION: Damage occurs from:
• Increased vibration levels – affects bearings, stuffing box or seal chamber and mechanical
• Increased radial loads – Stresses on shaft and bearings
• Heat build up–Vaporization causing rotating parts to score or seize
• Cavitation–Damage to internal surfaces of pump
CAUTION: Observe pump for vibration levels, bearing temperature and excessive noise. If
normal levels are exceeded, shut down and resolve.
WARNING:
•
• Operation of this pump with both suction and discharge valves closed for even brief
WARNING:
abrasive and/or corrosive, or if the environment is classified as potentially explosive.
WARNING:
explosion.
16
seal
This unit must never be used without prior installation of the safety guards for rotating
parts as prescribed by O.S.H.A.
periods of time is an unacceptable and dangerous practice. it can rapidly lead to a violent
pump failure.
Inspection intervals should be shortened appropriately if the pumpage is
DO NOT apply heat to hub or nose of threaded impeller. There is a danger of
Model JC Installation, Operation and Maintenance Instructions