V
acuum Br
eak
ers - page 2
SE
RI
E
S
VB8 V
A
C
UUM
BRE
AKE
R
S
C
at
al
o
g Numb
er
VB8-3
8-BR
-P-S-E
Pi
p
e T
hre
a
d
Size
20
.3
1.
4
9
0.
7
3
Ou
tle
t P
ip
e
Size
To
tal L
en
gt
h
“L
”
En
gage
d
Le
ngt
h “E”
O
.D
.of T
ub
e
“D
”
H
ex
B
o
d
y Size
Diam
et
er
of
O
rific
e
Diam
et
er
of
Ball
10
.0
0.
7
3
0.
3
6
In
.
H
2
0
In
.
H
g
PSI
VB8-
15
1
1-
1/2”
4.
9
0.
3
6
0.1
8
7.
9
0.
5
8
0.
2
9
21
.0
1.
5
4
0.
76
10
.5
0.
7
7
0.
3
8
In
.
H
2
0
In
.
H
g
PSI
VB8-
12
6
1-
1/4”
7.
1
0.
5
2
0.
2
6
6.
9
0.
51
0.
2
5
19
.5
1.
4
3
0.
7
0
10
.0
0.
7
3
0.
3
6
In
.
H
2
0
In
.
H
g
PSI
VB8-
10
1
1”
5.9
0.
4
3
0.
21
6.6
0.
4
8
0.
2
4
25
.0
1.
8
4
0.
9
0
15
.3
1.
13
0.
5
5
In
.
H
2
0
In
.
H
g
PSI
VB8-
76
3/4”
15
.0
1.
10
0.
5
4
5.
1
0.
3
7
0.1
8
18
.0
1.
3
2
0.
6
5
9.
3
0.
6
8
0.
3
4
In
.
H
2
0
In
.
H
g
PSI
VB8-5
1
1/2”
10
.6
0.
7
8
0.
3
8
4.
4
0.
3
2
0.1
6
10
.5
0.
7
7
0.
3
8
7.
0
0.
51
0.
2
5
In
.
H
2
0
In
.
H
g
PSI
VB8-3
8
3/8”
4.
3
0.
3
2
0.1
6
3.
5
0.
2
6
0.1
3
H
orizo
nt
al
To
p
Ou
tle
t
Bo
tt
om
Ou
tle
t
No
Spri
ng
VB8-5
1-BR
-P-S-E
VB8-
76-BR
-P-S-E
VB8-
10
1-BR
-P-S-E
VB8-
126-BR
-P-S-E
VB8-
15
1-BR
-P-S-E
VB8
–3
8
–B
R
–P
–S
–E
VB8
Va
cuum Bre
ake
rs
E = E
PR
(S
p
ec
ify
alt
er
na
te
by n
am
e)
S = St
ai
nl
es
s St
ee
l
P = Pl
a
in
T
=
Th
re
ade
d
BR = Bra
ss
SS
= St
ai
nl
es
s St
ee
l
3
8
= 3/8”
51
= 1
/2”
76
= 3/4”
10
1
=
1
”
12
6
=
1-
1/4”
15
1
=
1-
1/2”
Di
m
ensio
ns are i
n i
nch
es
an
d f
or
ref
er
en
ce
o
nly
.
C
er
tifie
d dra
wi
ng
s are a
va
ila
bl
e o
n re
qu
es
t.
Ve
rtic
al
3/8
1/
2
3/4
1
1-
1/
4
1-
1/
2
1/
4
3/8
1/
2
3/4
1
1-
1/
4
1-
1/
2
1-3/4
2-
1/
8
2-3/8
2-
15
/1
6
3-
1/
16
1-
1/
8
1-3/8
1-5/8
1-
7/
8
2-5/
16
2-
1/
2
9/
16
11
/1
6
13
/1
6
1-
1/
16
1-5/
16
1-9/
16
3/4
1
1-
1/
4
1-
1/
2
1-3/4
2
1/
4
9/3
2
13/3
2
19/3
2
3/4
7/
8
3/8
1/
2
5/8
7/
8
1-
1/
16
1-3/
16
Va
cuum R
equ
ire
d t
o O
pe
n
S
erie
s
Size
Bo
d
y
Ou
tle
t
Ball
Se
al
Ex
pl
an
atio
n of C
at
al
og Numb
er
s
N
ot
e:
St
ai
nl
es
s St
ee
l B
all wa
s u
se
d t
o ar
rive at all figure
s.
Valu
es
give
n are a
ve
rages
o
f tes
t r
esult
s an
d m
a
y var
y sl
igh
tly
.
V
A
C
UUM BRE
AKE
R
S
OPE
RA
TIN
G
PARA
M
ETE
RS
Temp
er
at
ur
e
Up t
o
3
6
5°
F
Pr
e
ssur
e
Up t
o
3
0
0 p
si
g
Not
e: M
a
ximum
limit
s va
ry
in
re
la
-
tion t
o
chan
ge
s i
n
pr
essur
e,
and t
em-
p
e
ra
tu
re
.
C
on
sul
t
John
son for safe
lim
it
at
ion
s under
yo
ur sp
e
cific appl
i-
ca
tion c
ond
it
ion
s.
Ass
emb
ly d
imen-
sion
s ar
e +/-
1/8”
.
Johns
on V
acuum
Bre
akers provide a
simpl
e,
dep
endab
le
way t
o
re
lieve
unw
an
te
d
v
acuum wh
ich may de
ve
lop i
n a c
lo
se
d
v
es
se
l or pip
el
in
e.
The
y c
a
n
b
e u
se
d
t
o
preven
t co
nt
a
minat
ion f
rom b
a
ck siphona
ge in f
luid
handlin
g sy
s-
te
m
s,
and t
o
pr
ot
ec
t e
q
uipmen
t a
gai
nst c
o
llap
se
or impl
o
sion
.
The
y c
ombi
ne
tight cl
osin
g wit
h inst
a
nt
resp
o
ns
e,
provide l
a
rge air ve
nt
in
g
cap
a
cit
y,
and are
de
signe
d for e
a
sy i
ns
ta
lla
tion and l
o
ng
s
er
vic
e l
ife
.
2
5
4
1
3
1
Bo
dy
Re
ta
iner T
ub
e
Ba
ll
O
-Rin
g
S
p
rin
g
2
3
4
5
Содержание Packaged Storage Water Heater Steam-to-Water System
Страница 2: ......
