Gems Sensors & Controls LS-74780 Specifications
1-1/2˝ DIA.
(38.1 mm)
3-7/16˝
(87.3 mm)
5/8˝ HEX
(15.9 mm)
1/4˝ NPT
21/32˝
(16.7 mm)
3/4˝
(19.1 mm)
†
1-13/16˝
(46.0 mm)
2-25/32˝
(70.6 mm)
PVC JACKETED
LEAD WIRES
2-1/8˝ DIA.
(54 mm)
3-15/32˝
(88.1 mm)
21/32˝ HEX
(16.7 mm)
1/4˝ NPT
13/16˝
(20.6 mm)
.92˝
(22.3 mm)
†
1-15/16˝
(49.2 mm)
2-21/32˝
(67.5 mm)
TEFLON JACKETED
LEAD WIRES
®
WIRE. 22 AWG.
TEFLON JACKETED
24˝ TO 26˝
(610 mm to 660 mm)
EXTENDED LENGTH
1/2˝ HEX. REF.
(12.7 mm)
1/8˝ NPT REF.
#174106.
RETAINING
CLIP
#174105.
FLOAT
5/16˝
DIA. REF.
(7.9 mm)
1-1/8˝
DIA. REF.
(28.5 mm)
1-31/32˝ REF.
(50.0 mm)
2-1/2˝ REF.
(63.5 mm)
ACTUATION
LEVEL
5/8˝ REF.
(15.9 mm)
Large Size – Engineered Plastics
Select from these Engineered Plastics for Aggressive or Ultra-Pure Liquids
Each of these series offers unique features. Choose from this selection
when all-plastic material is desirable and tank space is not restricted.
LEVEL SWITCHES – SINGLE POINT
All CPVC
Particularly well suited
for rough service. Ideal
for use in chemical and
plating applications.
Dimensions
LS-74780
LS-74780 –
LS-1900TFE
Resists build-up of
foreign material or
sticky media. Float travel
remains uninhibited in
viscous or corrosive
liquids. SPDT switch.
LS-1900TFE
LS-1700TFE
A medium-size solution
for ultra-pure liquid
level sensing. Made
of corrosion resistant
PTFE for low particle
generation.
LS-1700TFE
A-12
†L1=Switch actuation level, nominal (based on a liquid specific gravity of 1.0 and N.O. dry circuit–dimension will vary for N.C. circuit).
Common Specifications
Electrical Termination: No. 18 AWG, 24˝ L., Lead Wires
(Jacket material is indicated on dimensional drawings, above).
How To Order – Select Part Number based on specifications required.
Series
Number
LS-74780 CPVC .85 -40°F to +180°F (-40°C to +82.2°C) 15
LS-1900TFE Teflon
LS-1700TFE PTFE .86 +32°F to +212°F (0°C to +100°C) 25
– Stock Items.
* See “Electrical Data” on Page X-5 for more information.
** Switch operation is selectable, N.O. or N.C., by inverting the float on the unit stem. Units are shipped N.O. unless otherwise specified.
†† 100 VA switches are not U.L. Recognized.
Materials
Stem, Mounting
and Other Wetted
Min. Liquid
Float
®
Sp. Gr.
.80 -40°F to +300°F (-40°C to +148.9°C) 30
Operating Temperature
Visit www.GemsSensors.com for most current information.
Pressure,
PSI,
Max.
Switch*
SPST, 20 VA
SPDT, 20 VA
SPST, 20 VA, N.O.
SPST, 20 VA, N.C.
Part Number
Mounting Size
1/4˝ NPT 1/8˝ NPT
74780** —
133299 —
— 174100
— 174200
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