Omega Products LVN-40 User Manual
HIGH-TEMPERATURE NEMA 6 LIQUID
LEVEL SWITCHES
All Stainless Steel Construction
LVN-40 Series
LVN-52, shown
actual size.
LVN-50, shown
U NEMA 6 Rated
U High-Pressure Models
Up to 1000 psi
U User Selectable,
Normally Open, or
Normally Closed
U Mounts Vertically at
Top or Bottom of Tank
U Well Suited for Rough or
Corrosive Applications
These liquid-level switches are
sealed with potting compound. The
only path for liquid to the electrical
switch would be through the wires.
If the wires are terminated in an
appropriate manner (e.g., NEMA
6 connectors), the level switch will
meet or exceed a NEMA 6 rating,
making it suitable for years of worryfree operation in moisture-laden
environments. A sealed SPST switch
provides consistent accuracy and
high repeatability while minimizing
the effects of shock, vacuum, or
vibration. The switch is extremely
versatile since it is user selectable
as normally open or normally closed
by simply reversing the float or the
mounting of the switch. The
standard NPT male fittings allow for
quick installation in either the top or
bottom of the tank or vessel.
SPECIFICATIONS
Stem Material: 316 SS
Float Material: 316 SS
Operating Temperature:
-40 to 149°C (-40 to 300°F)
Maximum Pressure Rating:
From 225 to 1000 psi
Mounting:
LVN-40 and LVN-50:
LVN-52:
1
⁄4 NPT
Switch: SPST
Switch Actuation: Approx. half the
distance from the end of stem to
mounting or halfway point of float
travel in liquid of 1.0 specific gravity.
Lead Wires: 20 AWG, 24" PVC
Specific Gravity of Float:
LVN-40: 0.72
LVN-50: 0.70
LVN-52: 0.64
1
⁄8 NPT
Dimensions: mm (inch)
54 mm NOM
1
⁄8" NOM)
(2
54 mm NOM
1
(2
⁄8" NOM)
To Order Visit omega.com/lvn40_50 for Pricing and Details
Pressure Switch
Model No. Temperature Rating °C (°F) Rating NPT Size Rating
LVN-40 -40 to 149 (-40 to 300) 900 psi ¹⁄₈ 50 VA
LVN-50 -40 to 149 (-40 to 300) 1000 psi ¹⁄₈ 50 VA
LVN-52 -40 to 149 (-40 to 300) 975 psi ¹⁄₄ 50 VA
Comes complete with operator’s manual.
Ordering Examples: LVN-52, high-temperature liquid-level switch.
LVN-40, high-temperature liquid-level switch.
actual size.
K-99
WIRES ARE 20 AWG
~600 mm LONG
(24" LONG)
SEALED TO MEET NEMA VI
1
⁄8 NPT
11 mm HEX
7
⁄16" HEX)
(
FLOAT
25 mm DIA x 25 mm TALL
(1" DIA x 1" TALL)
LVN-40
WIRES ARE 20 AWG
~600 mm LONG (24" LONG)
SEALED TO MEET NEMA VI
1
⁄8 NPT
11 mm HEX (7⁄16" HEX)
FLOAT
25 mm DIA SPHERE
(1" DIA SPHERE)
LVN-50
87 mm NOM
7
(3
⁄16" NOM)
WIRES ARE 20 AWG
~600 mm LONG (24" LONG)
SEALED TO MEET NEMA VI
1
⁄4 NPT
9
14 mm HEX (
⁄16" HEX)
FLOAT
51 mm DIA SPHERE
(2" DIA SPHERE)
LVN-52
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