Product Overview

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
1
1
O
50905 - 05/12 - Subject to change. © Belimo Aircontrols
(
USA
)
, Inc
.
B2
S
eries, 2-Way,
C
haracterized
C
ontrol Valv
e
S
t
a
inl
ess
S
t
ee
l B
a
ll
a
n
d
S
t
em
Technical Data
S
ervic
e
c
hill
e
d
or
h
ot water,
60%
g
l
yco
l
Fl
ow c
h
aracter
is
t
ic
A
-port equa
l
percentage
Controllable Flow Ran
g
e7
5
°
S
ize
s
½”
,
¾”
,
1”
,
1¼”
,
1½”
,
2”
,
2½”
,
3”
Type of end fi tting NPT female end
s
Material
s:
B
od
y
B
al
l
S
tem
S
eat
s
C
haracterizin
g
dis
c
Packin
g
f
or
g
ed brass, nickel plate
d
s
ta
i
n
l
e
ss
s
tee
l
s
ta
i
n
l
e
ss
s
tee
l
PTFE
Tefzel
®
2 EPDM O-rin
g
s, lubricated
B
od
y
pressure rating
600
p
s
i
400
p
si
½” - 1¼”
(B
230
)
1¼”
(B
231
)
- 3”
M
e
di
a temp. rang
e
0°F to 250°F
[
-18°C to 120°C
]
Close off
p
ressur
e
200
ps
i
100
ps
i
½” - 2” (
B
250)
2” (
B
251) - 3”
M
a
xim
u
m
d
i
ffe
r
e
nti
a
l
pressure
(
Δ
P)
50 psi
f
or t
y
pical application
s
Leaka
ge
0%
f
or A to AB
External leaka
ge
accordin
g
to EN 12266-1:2003
C
v
rat
i
n
g
A-
p
ort: see
p
roduct chart for value
s
Te
f
ze
l
®
is a registered trademark o
f
DuPon
t
Dimensions
2W
ay
V
a
l
ve-
B20
7-
B220
Valve Nominal
S
ize
D
imensions
(
Inches [mm]
)
V
a
l
ve
B
o
dy
I
nc
h
es
DN
[
mm
]
A
B
B
207-
B
211
½”
1
5
2
.
41”
[61
.
1]
1
.
39”
[3
5.
2]
B
212-
B
21
6
½” 1
5
2
.38”
[
60.4
]
1
.78”
[
45.2
]
B
217-
B
221
¾”
20
2
.7
3”
[69
.
3]
1
.
8
7
”
[4
7.
4]
B
222-
B
225 1”
2
5 3.09”
[
78.4
]
1.87”
[
47.4
]
B
229-
B
230 1¼” 32
3.72” [94.6] 1.87” [47.4]
B231-B232 1¼” 32 3.72”
[
94.6
]
2.04”
[
51.9
]
B
238-
B
240 1½”
4
0
3.88”
[
98.5
]
2.04”
[
51.9
]
B
248-
B
250 2” 5
0
4.21” [107.0] 2.27” [57.7]
B
251-
B
254 2” 5
0
4.93”
[
125.2
]
2.73”
[
69.5
]
B
2
6
1-
B
2
65
2½”
65
5.55”
[
140.9
]
2.73”
[
69.5
]
B
277-
B
280 3” 8
0
5.82”
[
147.9
]
2.73”
[
69.5
]
A
pp
lication
This valve is typically used in air handling units on heating or cooling coils, and
f
an coil unit heating or cooling coils.
S
ome other common applications include
Unit Ventilators, VAV box re-heat coils and bypass loops. This valve is suitable
f
or use in a h
y
dronic s
y
stem with variable
fl
ow.
Valve Nominal Size
Ty
pe Suitable Actuators
C
v
Inches DN [mm] 2-Way NPT Non-Spring Spring
0
.3
½
1
5
B
207
TR Series
LR Series
NR...N4 Series
TF Series
LF Series
0.46
½
1
5
B
208
0
.8
½
1
5
B
209
1
.
2
½
15
B
210
1
.9
½
1
5
B
211
3
½
15
B
212
4
.7
½
1
5
B
213
7.4
½
1
5
B
214
1
0
½
1
5
B
215
14
½
15
B
216
4
.7 ¾ 2
0
B
217
7.
4
¾
20
B
218
1
0
¾ 2
0
B
219
14
¾
20
B
220
24
¾
20
B
221*
7.
4
1
25
B
222
10
1
25
B
223
19
1
25
B
224
30
1
25
B
225*
10
1¼
32
B
229
19
1¼
32
B
230*
25
1¼
32
B
231
AR Series
AR...N4 Series
AF Series
37
1¼
32
B
232*
19
1½
40
B
238
29
1½
40
B
239
37
1½
40
B
240*
29
2
5
0
B
248
46
2
50
B
24
9
57
2
5
0
B
250*
65
2
50
B
2
5
1
8
5
2 5
0
B
252
120
2
5
0
B
253
240
2
5
0
B
254*
60
2½
65
B
261
75
2½
65
B
262
110
2½
65
B
263
1
5
0
2½
65
B
264
210
2½
65
B
265*
7
0
3
80
B
277
130
3
80
B
278
1
7
0
3
80
B
280*
*M
o
d
e
l
s w
i
t
h
out c
h
aracter
i
z
i
ng
di
s
c
Flow Patterns