FULTON VSRT Series Installation, Operation And Maintenance Manual page 48

INSTALLATION
!
WARNING
All information in this manual is for
reference and guidance purposes,
and does not substitute for required
professional training, conduct, and strict
adherence to applicable jurisdictional/
professional codes and regulations.
!
WARNING
Under no circumstances should there be
any shut off valve or restriction smaller
than the safety valve inlet between the
boiler and the safety valve.
2-38
Daily Maintenance Schedule section of this manual.
Chemical Dosing: In addition to softening the feedwater, it is also important
to consider other factors such as dissolved oxygen and acidity. Depending on
the results of an analysis, it may be necessary to inject appropriate amounts of
corrective chemical into the feedwater system. This is usually achieved by means
of a chemical compound solution and variable output metering pump mounted
at the storage vessel. It is important that the chemicals and quantities are correct
and it is advisable to contact a water treatment company to arrange a feedwater
analysis.
Piping Specifications
For piping, the basic considerations are the design temperature, the pressure
retained by the pipe, the fluid in the pipe, the load resulting from thermal
expansion or contraction and, impact or shock loads imparted (such as water
hammer, external loads, wind loads, and vibration from equipment).
While referencing Table 7 and Figure 26, adhere to the following:
1. The arrangement of the piping and its appurtenances must take into
consideration the location of other structures and equipment adjacent
to the piping. The potential for freezing interference and/or damage as a
result of expansion, contraction, vibration, or other movements must be
factored.
2. Valves are used in piping systems to stop and start the flow of fluids, to
regulate flow, to prevent back flow, and to relieve excessive pressure
build-up in the piping. Consideration should be given to the appropriate
location and orientation of valves necessary for safe operation and
isolation of the piping.
3. All piping and piping components used should be suitable for the design
temperatures, pressure and fluid used in the system.
4. During the installation, ensure that no dirt, water, or residue from welding
is left in the system.
5. Expansion joints or properly designed and sited loops should be provided to
accommodate thermal expansion. Thermal expansion should be calculated
using the maximum possible utilization fluid temperature, regardless of
whether the pipe considered is in the feed or return circuit. Steel pipe will
expand approximately 1 " per 100' over a 100 F temperature rise (1 mm per
meter over 100 C rise).
6. Supports and anchors must be provided for all pipes, as necessary, to
prevent undue stresses from being placed on equipment, including
pumps, valves, and the heater. Supports and anchors which will not
interfere with thermal expansion should be chosen. The equipment should
never be used or considered as an anchor. No additional loads should be
applied to any factory connection.
7. Gaskets must be used to make all flanged connections. Gasketing material
must be suitable for use with the pressure, temperatures and fluids in the
SECTION 2
VSRT-IOM-2022-0728
© Fulton Group N.A., Inc. 2022