Pulsafeeder Pre-Engineered Skid Systems - Manual (Page 11)

Pre-Engineered Skid Systems
Installation, Operation and Maintenance Manual
PES00039, Rev. B Installation Page 11
Installation, Continued…
Owner-Installed Piping/Tubing
The next series of steps are the connection of your piping/tubing which include the chemical supply
line, discharge line, pressure relief/bypass line and an air bleed return line.
These are your responsibility and
Suction Line
This line connects the source of the dosing chemical to the Pulsafeeder Pre-Engineered Skid. Please
refer to Figure 3 and Figure 4 on Pages 7 and 8 respectively. If the source is below the centerline of
the pump (suction lift condition), ensure that the suction line has a gradual rise up to the skid suction
connection. If the source is above the centerline of the pump, ensure that the suction line has a gradual
slope down to the skid suction connection. The purpose of this is to prevent air pocket(s) in the
suction line which could affect proper operation of the pump. Include whatever provisions you
consider necessary to facilitate maintenance and operation such as isolation valve(s), drain and/or flush
connections, etc., making sure that this sub-system enables SAFE OPERATION.
Discharge Line
This line connects the Pulsafeeder Pre-Engineered Skid to your served process. Please refer to the
general description on Pages 8 and 9 and Figure 5 and Figure 6. This line should include the injector
assembly that is usually furnished with the pump. If the injection point is below the dosing chemical
source or if injecting into a low pressure area such as the suction of a pump, an anti-siphon/ back
pressure valve should be located as close as possible to the injection point to prevent unwanted
chemical feeding. Include whatever provisions you consider necessary to facilitate maintenance and
operation such as isolation valve(s), drain and/or flush connections, etc., making sure that this sub-
system enables SAFE OPERATION.
!
WARNING
Ensure that for all piping, tubing, fittings and other appurtenances, their materials are
compatible with the liquid to be pumped and the design is suitable for the pressures and
temperatures of the application. System design must ensure safety for operation and
maintenance as well as for anyone who may be in proximity to the system.
Failure to do so may result in damage to equipment, personal injury or death.