Table 1: Temperature class definitions
Code
Maximum permissible surface tem-
perature in °C | °F
Maximum permissible liquid tempera-
ture in °C | °F
T1
440 | 824
372 | 700
T2
290 | 554
267 | 513
T3
195 | 383
172 | 342
T4
130 | 266
107 | 225
T5
Option not available
Option not available
T6
Option not available
Option not available
* Maximum liquid temperature may be limited by the pump model and order specific options.
Temperature class definitions on page 11
is for the purpose of determining T'x' code for ATEX applica-
tions with liquid temperatures exceeding 107ºC | 225ºF.
The code classification marked on the equipment must be in accordance with the specified area where
the equipment will be installed. If it is not, do not operate the equipment and contact your ITT Goulds
Pumps sales representative before proceeding.
ISO 80079-37:2016 Section 5.7
Recommended bearing replacement interval (based on L10 life) = 25,000 hours of operation.
WARNING:
•
When equipment/pumping unit is installed/operated in a potentially explosive atmosphere,
the instructions after the Ex symbol must be followed and equipment must be installed in
accordance with the following instructions. Personal injury and/or equipment damage
from an explosion may occur if these instructions are not followed. If there is any question
regarding these requirements or if the equipment is to be modified, please contact a
Goulds representative before proceeding.
•
Particular care must be taken when the electrical power source to the equipment is ener-
gized.
•
Improper impeller adjustment could cause contact between the rotating and stationary
parts, resulting in a spark and heat generation.
•
Lock out driver power to prevent electric shock, accidental start-up and physical injury.
•
NEVER start pump without proper prime (all models), or proper liquid level in self-priming
pumps (Model 3796 and SP3298).
•
All equipment being installed must be properly grounded to prevent unexpected static
electric discharge. This includes ensuring that the PFA lined pumps (Model 3198), ETFE
lined pumps (Model 3298, SP3298, V3298), and the non-metallic liquid end pumps (Mod-
el NM3196) are pumping fluids that are conductive. If not, a static electric discharge may
occur when the pump is drained and disassembled for maintenance purposes
•
When pumping fluids with conductivity less than 1000 ps/m follow IEC TS 60079 32-1
guidelines.
•
Alignment procedures must be followed to prevent unintended contact of rotating parts.
Follow coupling manufacturer’s installation and operation procedures.
•
When installing in a potentially explosive environment, ensure that the motor and acces-
sories are properly certified.
•
The impeller clearance setting procedure must be followed. Improperly setting the clear-
ance or not following any of the proper procedures can result in sparks, unexpected heat
generation and equipment damage.
1.4 ATEX Considerations and Intended Use
Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual
11
