WARNUNG:
Service temperature in an ATEX classified environment is limited to the area classification
specified on the ATEX tag affixed to the pump (reference Fastener Size and Recommen-
ded Torque Values in
3.5 3996 Shaft Alignment Procedure on page 22
for ATEX classifica-
tions).
Also, for pumpage temperatures above 200° F | 93°C the cold (ambient) setting must be inc-
reased per table below. This is necessary to prevent the impeller from contacting the casing
due to differential expansion from the higher operating temperatures.
Tabellennummer 4: Impeller Clearances - Cold Temperature Clearances for Various Service
Temperatures
Service Temperature
ST
MT
inches
mm
inches
mm
From -20 to 150°F (-29 to
66°C)
0.005
0.13
0.008
0.20
Up to 175°F (79°C)
0.005
0.13
0.008
0.20
Up to 200°F (93°C)
0.005
0.13
0.008
0.20
Up to 250°F (121°C)
0.006
0.16
0.009
0.23
Up to 300°F (149°C)
0.007
0.19
0.010
0.26
Up to 350°F (177°C)
0.009
0.22
0.012
0.29
Up to 400°F (204°C)
0.010
0.25
0.013
0.32
Up to 450°F (232°C)
0.011
0.28
0.014
0.35
Up to 500°F (260°C)
0.012
0.30
0.015
0.38
7.
Couple Pump and Driver
WARNUNG:
Lock out driver power to prevent accidental rotation and physical injury.
1.
Discharge isolation valve
2.
Check valve
3.
Suction isolation valve
Abbildungsnummer 9:
WARNUNG:
The coupling used in an ATEX classified environment must be properly certified.
1.
Install and lubricate coupling per manufacturer's instructions.
4.1 Preparation for Startup
26
3996 Installation, Operation and Maintenance Instructions
Содержание GOULDS PUMPS 3996
Страница 1: ...Installation Operation and Maintenance Instructions 3996 ...
Страница 2: ......
