Flowserve Edward Cast Steel Bolted Bonnet Valves - Manual (Page 10)

10
Flow Control Division
Edward Valves
FIELD REPAIR EQUIPMENT
Available from Edward are some basic
tools for repairing valves in the field. This
equipment was developed for customer use
on a rental basis. Of course, an emphasis
has been placed on large valve repairs
where economics justify extensive repairs
in the field rather than removing the valve
from the pipe line for return to the factory.
Contact your local Edward Valves sales
representative for more information. A list
of this equipment follows:
1. Lapping equipment.
See Illustration No. 2.
2. Self-centering lap guide fixtures for lap-
ping valve seats in valves 8” and up.
See Fig. C. This fixture can be used
when the valve is installed in any posi-
tion, and is recommended, when the
stem is horizontal.
3. Sunnen Portable Hone for honing bores
from 4" to 14-1/2" diameter. (Not
illustrated)
4. Van Norman portable boring machine
for reboring valves in the field. Grinding
attachments are also available for some
sizes for grinding seat joints. (Not illus-
trated)
5. Air driven portable boring machine for
reboring guide ribs and seats of valve
bodies in the line. (Not illustrated)
Repair Procedures
(cont.)