Xylem IM158 R04 Model SMVT User Manual

Page 24

SMVT Installation, Operation and Maintenance Manual

Operating at reduced capacity:

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, physical
injury or property damage.

Caution: Damage can occur from:
1. Increased vibration levels – affects bearings and mechanical seal.
2. Increased radial loads – Stresses on shaft and bearings.
3. Heat build-up – Vaporization causing rotating parts to score or seize.
4. Cavitation – Damage to internal surfaces of pump.

Operating under Freezing Conditions

Exposure to freezing conditions while pump is idle could cause liquid to freeze and damage
the pump. Liquid inside the pump should be drained.

Shutdown

1. Slowly close the discharge valve.
2. Shut down and lock the driver to prevent accidental rotation.

Warning: When handling hazardous and or toxic fluids, proper personal

protective equipment should be worn. If pump is being drained, precautions
must be taken to prevent physical injury. Pumpage must be handled and disposed
of in conformance with applicable environmental regulations.

Commissioning, Startup, Operation and Shutdown (continued)

Extreme heat can

cause personal injury

or property damage.

WARNING