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12
12
-3
Air Operated V
alve/Contr
ol V
alve
Air Operated Valve/Control Valve
Step
0
Selection of Air Operated Valve and Control Valve
Opening and shutting
take place with the power
of air pressure
Control valve is a pneumatic,
hydraulic, or electrically powered
device to control operating
conditions such as flow, pressure,
temperature, and liquid level by
fully or partially opening or closing
in response to a process signal
Diaphragm motive pressure type
Control the opening and shutting of valve take place
with air pressure in addition to diaphragm
Valve that opens and closes the valve directly by
applying air pressure to the actuator
Various process
control by a
combination of
controller
Control on/off of the
fluid line for explosion
proof area that cannot
use electricity
What is Air Operated Valve?
What is Control Valve?
Application
Application
Best Selection Chart (Except control valve)
This chart include solenoid valve (DD series) and motor valve (MD series) of block
11
other than air operated valve.
Requirement
1st recommendation
2nd recommendation
High-speed response
Steam
DP-100
100F
DP-10
Cold and hot water
DP-200 Series
PD Series
Water hammer prevention
Steam
MD-54
Cold and hot water
DP-200 Series
PD Speed controller
No rubber material (Stainless steel, PTFE)
DP-100
100F
MD Series
Easy maintenance
DP
DD Series
Manual operation
MD Series
On/Off switch
MD Series
Usable in explosion-proof area
DP-34N
PD Series
Less scale problems
PD Series
MD Series
Lightweight, compact and space-saving
DD Series
DP Series