Seojin's Level & Flow Products

ㆍTubular type LG is widely used for low pressure services
ㆍup to 5㎏/㎠ & Max temperature 150℃
ㆍReflex type LG is suitable for observing the level of
ㆍtransparent liquids because prismatic diffraction cause
ㆍgases to appear white by reflection : liquids black
ㆍby absorption.
ㆍTransparent type LG is suitable for medium with dirty,
ㆍviscous or aggressive.
ㆍThe flat transparent glasses guarantee better indication
ㆍsince the glass surface can be protected by mica shields
ㆍagainst serious attack by the medium.
ㆍMagnetic type LG is to indicate the fluid level by the ring
ㆍmagnetic float inside 2" chamber to correspond with the
ㆍchange in level.
ㆍIt facilitates optimum readability thanks to two(red-green)
ㆍcolored flapper indicator which is turned through 180℃ by
ㆍthe float movement.
ㆍThe indicator is completely separated from the fluid
ㆍcontainer.
ㆍThus Magnetic type LG is a reliable, safe, maintenance
ㆍfree instrument.

The signal of piezoelectric element built in measuring part
of prove is changed in proportion to level variation, and
this signal is converted ito 4~20mA.

This uses buoyancy and self-weight and makes micro
switch work

Piezoelectric elements at the tip of the sensing rod cause
vibrations.
The presence of solids is detected by the damping of these
vibrations

A disk moving back and forth ona reciprocating shaft is used
for detection of level.
The presence of solid materials interfaces with the motion
and activates a micro-switch output

A Paddle rotating in a shaft is used to detect the presence
of powders and particles.
The output is an isolated microswitch action