Manual

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
4
3
0
7/10 -
S
ubject to change.
©
Belimo Aircontrols
(
U
S
A
)
, Inc.
Maintenance Instructions
S
afety Precaution
s
Before removing the valve from the line or loosening any bolts, it is
i
mportant to verify the following conditions:
1
.
B
e sure the line is depressurized and drained.
2
. Be sure of the pipeline media. Proper care should be taken for
p
rotection a
g
ainst toxic and/or flammable fluids
.
3
. Never remove the valve without an Operator
(
Manual or Automatic
)
alread
y
attached to the valve shaft.
4
. Never remove the
O
perator from the valve while the valve is in the
pip
e
li
ne un
d
er
p
ressure.
5
. Alwa
y
s be sure that the disc is cracked approximatel
y
5° off of the
c
losed position before removin
g
the valve
.
General Maintenanc
e
T
he followin
g
periodic preventative maintenance practices are
r
ecommended for all Butterfl
y
Valves.
1
. Operate the valve from full open to full closed to assure operabilit
y.
2
. Check flan
g
e boltin
g
, actuator mounts and han
g
ers for
evidence of loosening and correct as needed.
3
. Inspect the valve and surroundin
g
area for previous or existin
g
l
eaka
g
e at flan
g
e faces or shaft connections.
4
. Check pipin
g
and/or wirin
g
to actuators and related
equi
p
ment for looseness and correct as needed.
I
n
s
t
alla
t
io
n
Reco
mm
e
n
da
t
io
n
s
F6…HD
(
U
)
, F7…HD
(
U
)
Series Butterfl y Valve
s
Valve Installation- Dead End
S
ervic
e
1
. Follow previously described pre-installation and installation
procedures.
2
. To achieve the full close-off pressure of the HD/HDU series, a
flange is required on the open or down stream side of the valve
(
Fig. 9
)
1
1
Fig. 9