35 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
35 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
35 | IM-112 DECEMBER 2019
Vertical Turbine Pumps
2001299 - VTP- IOM
Vertical Turbine Pumps
Commissioning and Operation
Document Name: 2001299-VTP-IOM-EN Page 35 of 67
Revision 3 Copyright © 2014, Weir Floway, Inc. All Rights Reserved. Issue Date: December 12, 2014
6.1 Pre-starting Checks
Do the following checks before starting the pump:
1. Rotate the pump shaft to make sure the pump is free and impellers are correctly positioned.
2. The shaft adjusting nut is properly locked into position.
3. The driver has been installed and lubricated in accordance with the manufacturer’s instructions
furnished with the driver.
4. Check the driver for proper rotation. If not, disconnect the pump from the driver before doing further
checks. The driver must rotate counter-clockwise when viewed from the top of the driver.
5. All connections to the driver and control equipment are in place.
6. All piping connections are tight, leak free, and have the required gasket or O-ring installed.
7. All anchor bolts are tight.
8. All bolting and tubing connections are tight (driver mounting bolts, flanged coupling bolts, seal housing
cover bolts, seal piping, etc.).
9. For pumps equipped with a packing box, make sure the gland nuts are only finger tight. Do not tighten
the packing gland before starting the pump.
10. For pumps equipped with mechanical seals, clean fluid must be put into the seal chamber. For pumps
under suction pressure this can be accomplished by bleeding all the air and vapor out of the seal
chamber and allowing the fluid to enter. For pumps not under suction pressure the seal chamber must
be flushed liberally with clean fluid to provide initial lubrication. Make sure the mechanical seal is
properly adjusted and locked into place.
11. For pumps equipped with enclosed lineshaft, lubricating fluid must be available and allowed to run into
the enclosing tube in sufficient quantity to thoroughly lubricate all lineshaft bearings.
WARNING
HOT FLUIDS AND SURFACES
Fluids and surfaces may become hot during operation (for example, hot pumpage, pump
surfaces, thrust bearing surfaces, thrust bearing oil, driver oil, driver surfaces, packing
leakage, etc.). Appropriate safety measures and PPE must be utilized to prevent personnel
injury.
WARNING
PERSONNEL INJURY
Do not touch the rotating elements with hands to establish the direction of rotation. Visually
confirm the direction of rotation.
NOTICE
After the initial start-up, pre-lubrication of the mechanical seal is usually not required, as
enough liquid will remain in the seal chamber for subsequent start-up lubrication.
To Next Page
Loading...
