• Home > 사업영역 > LEVEL 사업부 > Air Purge Type (pure Pneumatic)
◊ Air Purge Type (pure Pneumatic)
|
◈ Features
• Liquid
level of measuring depth pressure is indicated for direct reading, and
then the
high precision is achidved.
• The
construction is simple and the handling and maintenance is easy.
• Since
no electricity is used, the explosion-proof measures is not neccessary.
• With
use of the pressure type high sensitive level swich, the signal and alarm
of the
preset liquid level can be transmitted.
• Blowing
valve is select type(change over type)
So blowing is very easy.
• Included
stop valve at air purge head, other pressure is no need for line leakage
test.
◈ Application
• OPEN
TANK
· Ballast tank remote reading
· Draft remote reading
· Heeling and trim remote reading
· Fuel oil tank remote reading
• CLOSE
TANK
· Cargo oil tank remote reading
· All liquids even viscous ones(molasses, bitumen, etc.…)
◈ Standard Specificatian
• System
type : One line type air purge system
• Flow
rating : 10~80NI/hour
• Working
temp : 0~50℃
• Supply
air setting pressure : 4.5㎏/㎠
• 400m
Max. distance of signal line and indicator
• Signal
line size : OD 8 or OD 10
• Range
: 1 to 40 meter
• Accuracy
: ±0.5% of F.R(Option), ±1.0% of F.R(Std)
◈ Operating Principle
• The Principle based upon the measurement of the hydrostatic
pressure by probe which
opens at the tank bottom.
• The flow regulator ensuring a constant pre-set flow at the
end of the soundong pipe in
the tank irrespective of the supply pressure.
• Gauge saver is used for protecting the level indicator against
over pressure.
• The blowing valve in used for isolation from other channel
without any influence.
• The air supply valve in used for sending the full air pressure
through the signal line for
cleaning purposes.
• The output pressure of this constant flow regulator(Corresponding
to the hydrostatic
pressure at the bottom of the sounding pipe)is connected
to the level indicator.
• The indicator and constant flow regulator are built in inoterconnecting
assembly ready
for panel mounting. |
◈ Principle Digram
|