Fulton Ancillary Equipment SteamPac Unfired Steam Generators - Manual (Page 28)

Fulton Thermal Corp.*SteamPac Unfired Steam Generators Manual* Version 2010-0201
Page 28
b) When ordering valves, the maximum possible service temperature and type of fluid must
be indicated on the order.
c) A partial list of manufacturers known to market valves of acceptable quality follows:
1. Jenkins Brothers
2. Lunkenheimer Company
3. Nibco Incorporated
4. Stockham Valves and Fittings Company
5. Velan
6. Vogt Machine Company
7. Worcester Valve Company
d) Automatic Fluid Control Valves
1. Because of the widely varied thermal systems, it is not possible to set
down specific rules for the selection of automatic fluid control valves.
Generally, these valves must satisfy the materials and construction
requirements described above.
2. The type of operation and design of porting are governed by the degree
of control required as well as the particular application.
21. Testing
a) Upon completion of the installation, a pneumatic test not exceeding 15 psig should be
conducted. Soap tests should be made at all welds and joints to ensure that the system is
free from leaks.
b) Under no circumstances should the system be filled with water. Make sure that the air
supply is as free from moisture as possible.
c) The most satisfactory method of testing is to introduce bottled nitrogen through a
pressure control valve. Check pressure ratings on all the equipment in the system to
make sure that it is capable of withstanding the pressure involved.
d) The time needed to be spent during boilout directly corresponds to the amount of
moisture in the system. Boilout can take anywhere from two to three days to complete.
Pressure testing on the system should be done by means of an inert gas, such as
nitrogen, or by an air compressor producing dry air (air with a dewpoint of 50 o F or less).
Never perform a hydrostatic test on the system.
22. Insulation
a) After the appropriate system tests have been satisfactorily completed, all hot pipework,
including manifolds on the heater, must be adequately insulated with material suited to
the temperature and application to prevent both heat loss and personnel injury.
b) It is recommended that for inspection and maintenance, pumps, flanges, valves, and
fittings be left un-insulated but suitably shielded for safety.