Installation, Operation and Maintenance Manual
Butterfly Valve Type 55Type 55IS Pneumatic Actuated Type TA
9
(8) Specification of limit switch (option)
Actuation
Nom. size
Type sign
Protection grade
Type of limit switch
Double actuation Type
Air to open
Air to close
50-80mm (2”-3”)
SB2-11
IP65
V-112-1C24
(OMRON)
100-150mm
(4”-6”)
SB2-16
200-300mm
(8”-12”)
SB2-22
350-400mm
(14”-16”)
TA-200-SB
IP 55
Limit switch rating connection diagram (At intermediate opening)
Rate voltage
(V)
resistive load
(A)
AC125
11
AC250
11
DC115
0.5
DC250
0.25
(9) Specification of pressure reducing valve with filter (option)
Actuation
Nominal size
Type sign
Pipe bore
Element degree
Of filtration
Double actuation Type
Air to open Type
Air to close Type
50-300mm
(2”-12”)
55,55IS
ARU2-02-8A-G
Rc 1/4
5μm
350,400mm
(14”,16”)
55IS
ARU3A-03-10A
Rc 3/8
40μm
JIS sign
1
2
COM
N O
4
3
COM
N O
SW .1
SW .2
1
2
COM
N C
4
3
COM
N C
SW .1
SW .2
NO type NC type
SW.1: Contact closes when valve is closed (double acting/air to open)
Contact closes when valve is opened (air to shut)
SW2: Contact closes when valve is opened (double acting/air to open)
The contact closes when the valve is closed (air to shut)
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