GA Industries, LLC

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29 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

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May 30, 2013



GA Industries,
LLC

9025 MARSHALL ROAD

CRANBERRY TOWNSHIP, PA 16066 USA

TELEPHONE: 724
-
776
-
1020 FAX: 724
-
776
-
1254


SAMPLE SPECIFICATION

AWWA C504 Rubber Seated
Butterfly Valve


AWWA C504

AWWA C504 Rubber Seated Butterfly Valve



DESIGN

A
.
Butterfl
y
valve
s

shal
l

b
e

i
n

complet
e
accordanc
e
wit
h
AWW
A

C50
4

(lates
t

revision
)
fo
r

Rubbe
r

Seate
d

Butterfl
y

Valves.

Valve
s

shal
l

b
e

bubble
-
tigh
t
a
t

rate
d

pressur
e

an
d

b
e

capabl
e

o
f

operatio
n

afte
r

lon
g

period
s

o
f

inactivity.

B
.

Valve
s

shal
l

b
e

Pressur
e

Clas
s

150
B

unles
s

otherwis
e
specified
.

Flange
d

valve
s

shal
l

mee
t

th
e

AWW
A

C50
4

“short
-
body”

face
-
to
-
fac
e

dimension
s
an
d

b
e

face
d

an
d

drille
d

pe
r

ANS
I

B16.1
.
Mechanica
l
join
t

en
d

valve
s

shal
l

confor
m

t
o

ANSI/

AWW
A

C111/A21.11.

C
.

Valv
e

bod
y

shal
l

confor
m

t
o

th
e

wal
l

thicknes
s

requirement
s
o
f

AWW
A

C50
4

an
d

hav
e

a
n

integra
l
IS
O

5211/MS
S

SP
-
101

pa
d

fo
r

direc
t

mountin
g

o
f

th
e

actuator.

D
.

Th
e

nomina
l

size
,

pressur
e

rating
,

dat
e

o
f

manufactur
e

an
d

manufacturer’
s
nam
e

shal
l

b
e

cas
t

ont
o

th
e

bod
y

o
r

b
e

o
n

a

permanentl
y

attache
d

nameplate.


CONSTRUCTIO
N

CLAS
S

150B

A
.

Size
s

3


t
o

24


shal
l
b
e

constructe
d

a
s

follows:

1
.

Valv
e

bod
y

shal
l

b
e

AST
M

A53
6

Grad
e

65
-
45
-
1
2
ductil
e

iro
n

wit
h

a

permanen
t

rubbe
r

sea
t
molde
d

an
d

vulcanize
d

to

th
e

body
.

Flange
d

valve
s

shal
l

hav
e

a

completel
y

rubbe
r

line
d

waterway.

2
.

Valv
e

disc
s

shal
l

b
e

epox
y

coate
d

ductil
e

iro
n

an
d

o
f

th
e

concentri
c

desig
n

wit
h

a

31
6

stainles
s

stee
l

sea
t

edge.

3
.

Valv
e

shaf
t

shal
l

b
e

one
-
piec
e

Typ
e

30
4

stainles
s

stee
l

shaf
t

extendin
g

throug
h

th
e

disc
.

Th
e

dis
c

shal
l

b
e

fastene
d

to

th
e

shaf
t

wit
h

stainles
s

stee
l

pin
s

formin
g

a

lea
k

tigh
t

joint.

4
.

Th
e

sea
t

shal
l

b
e

mad
e

fro
m

Buna
-
N

rubbe
r

an
d

shal
l

sea
l

agains
t

ful
l

rate
d

differentia
l

pressure
.

Rubbe
r

seat
s

retained

b
y

epox
y

o
r

adhesiv
e
ar
e

no
t

acceptable.

5
.

Valve
s

shal
l

hav
e

corrosion
-
resistant
,

self
-
lubricatin
g
uppe
r

an
d

lowe
r

shaf
t

bearing
s

suitabl
y

designe
d
fo
r

horizontal

o
r

vertica
l

shaf
t

orientatio
n

wit
h

replaceable
,

self
-
adjustin
g

Buna
-
N
shaf
t

packing.

B
.

Size
s

30


an
d

large
r

shal
l

b
e

constructe
d

a
s

follows:

1
.

Valv
e

bod
y

shal
l

b
e

AST
M

A12
6

Clas
s

B
cas
t

iro
n

o
r

AST
M

A53
6

Grad
e

65
-
45
-
1
2
ductil
e

iro
n

bod
y

wit
h

a

fiel
d

adjustable

an
d

replaceabl
e

rubbe
r

seat.

2
.

Valv
e

disc
s

shal
l

offse
t

typ
e

an
d

mad
e

fro
m

ductil
e

iro
n

wit
h

a

31
6

stainles
s

stee
l

sea
t

edg
e

providin
g

ful
l

36
0

degree

uninterrupte
d

seating.

3
.

Valv
e

shal
l

hav
e

uppe
r

an
d

lowe
r

Typ
e

30
4

stainles
s

stee
l

shafts
.

Th
e

dis
c

shal
l

b
e

fastene
d

t
o

th
e

shaft
s

wit
h

stainless

stee
l

pin
s

formin
g

a

lea
k

tigh
t

joint.

4
.

Th
e

sea
t

shal
l

b
e

Buna
-
N

rubbe
r

sea
t

mechanicall
y

retained
,

fiel
d

adjustabl
e

an
d

fiel
d

replaceabl
e

withou
t

specia
l

tools

o
r

equipment
.

Rubbe
r

seat
s

retaine
d

b
y

epox
y

o
r

no
t

hel
d

i
n

plac
e

b
y

stainles
s

stee
l

retainers
,

stud
s

an
d

loc
k

nut
s

are

no
t

acceptable.

5
.

Valve
s

shal
l

hav
e

corrosion
-
resistant
,

self
-
lubricatin
g

uppe
r

an
d

lowe
r

shaf
t

bearing
s

suitabl
y

designe
d
fo
r

horizontal

o
r

vertica
l

shaf
t

orientatio
n

wit
h

a

factory
-
se
t

lowe
r

thrus
t

bearin
g

an
d

a

combinatio
n

impregnate
d

Teflon
®


V
-
rin
g

and

compressio
n

packin
g

wit
h

pull
-
dow
n

gland.


COATINGS

A
.
Valve
s

shal
l

hav
e

interna
l
ferrou
s

surface
s

coate
d

wit
h

6
-
8

mi
l

o
f

NSF
-
6
1

certifie
d

epox
y

pe
r

AWW
A

C550.

B
.

Externa
l

surface
s

excep
t
flang
e

face
s
shal
l

b
e

factor
y

prime
d

wit
h

6
-
8

mi
l

o
f

epoxy.


ACTUATORS

A
.

Manuall
y

operate
d

valve
s

fo
r

abov
e

groun
d

servic
e

shal
l

b
e

actuate
d

b
y

a

wor
m

gea
r

o
r

travelin
g

nu
t

actuato
r

wit
h

a

handwhee
l

an
d

visua
l

positio
n

indicator.

B
.

Manuall
y

operate
d

valve
s

fo
r

burie
d

servic
e

shal
l

b
e

actuate
d

b
y

a

seale
d

an
d

grease
-
packe
d

wor
m

gea
r

o
r

travelin
g

nut

actuato
r

wit
h

a

2


squar
e

nut.

C
.

Manua
l
actuator
s
shal
l
confor
m
t
o

AWW
A

C50
4

an
d

direct
-
moun
t

o
n

a
n

integral
,

pre
-
drille
d

IS
O

5211/MS
S
SP
-
10
1

pa
d

on

th
e

valv
e

body.

D
.

Whe
n

show
n

o
n

th
e

plan
s

o
r

liste
d

i
n

th
e

valv
e

schedule
,

th
e

valv
e

shal
l

b
e

operate
d

b
y

a
n

electri
c

motor
,

pneumati
c

or

hydrauli
c

cylinde
r

actuator.

MANUFACTURER

A
.

Rubber
-
seate
d

butterfl
y

valve
s

shal
l

b
e

Serie
s

80
0

a
s

manufacture
d

b
y

G
A

Industries
,
LLC
,

Cranberr
y

Township
,
P
A

USA.