Flowserve V-376 R4 Edward Valves Instrukcja Użytkownika Pobierz pdf (Strona 4)

5

Flow Control Division

Edward Valves

Introduction

This manual is provided to help you

service 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 Valve catalog.

This catalog will show typical cross sec-

tions to help identify the various parts.

Typical Identification Plates

Tools

Most Edward Forged Steel valves may be

readily disassembled with ordinary hand

tools. For the removal of screwed-in valve

seats, a special wrench may be necessary.

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

1 2 3 4 5 6 7 8 9 10 11

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