Introduction – Flowserve V-376 R4 Edward Valves User Manual
Page 4
5
Flow Control Division
Edward V
alves
Introduction
This manual is provided to help you
ser
vice your Edward Forged Steel valves.
Before disassembling any valve, we recom-
mend that you check the valve identifica-
tion plate and note size, figure number
and pressure class, so that you can identify
it in the appropriate Edward V
alve catalog.
This catalog will show typical cross sec-
tions to help identify the various par
ts.
Typical Identification Plates
Tools
Most Edward Forged Steel valves may be
readily disassembled with ordinar
y hand
tools. For the removal of screwed-in valve
seats, a special wrench may be necessar
y.
Disassembly
Be sure line is not under pressure when dis-
assembling valves
Bolted Bonnet
In bolted bonnet/cover style valves, cap
screws should be removed (see page 3
and below). The bonnet assembly or cover
can then be removed and the interior of
the valve exposed.
Fig. 238
Bolted Cover Strainer
Screwed Bonnet
Small valves of the screwed bonnet type
are disassembled by unscrewing the
bonnet.
Screwed Bonnet Construction