A-8 Visit www.GemsSensors.com for most current information.
LEVEL SWITCHES – SINGLE POINT
LEAD WIRES,
24˝ EXTENDED 1.40˝
(36 mm) REF.
3.38˝
(86 mm) REF.
11/16˝
(17 mm) REF.
7/8˝ (22 mm)
-14UNF THD
7/8˝ (22 mm)
-14 JAM NUT
#22 AWG ZIP CORD
LEAD WIRES
24˝ EXTENDED
5/16˝ REF.
(8 mm)
1.00˝
HEX
1/2˝ NPT
3-29/32˝ REF.
(99.2 mm)
1-1/32˝ REF.
(26.2 mm)
LEAD
WIRES,
24˝
EXTENDED
1/2˝ NPT
5/8˝ WRENCH
FLAT
5-5/16˝ REF.
(135 mm)
1-5/8˝ REF.
(41.3 mm) 5/8˝ DIA. REF.
(15.9 mm)
LEAD WIRES,
24˝ EXTENDED
.83 REF.
(21 mm)
4-9/16˝ REF.
(116 mm)
5/8˝ (16 mm)
DIA. REF.
5/8˝ (16 mm)
-11 JAM NUT
WITH VITON GASKET
5/8˝ (16 mm)
-11 THD
Small Size - Alloys
LS-7 Series - Compact Alloy and Alloy/Plastics Side Mounts
Built for durability, our LS-7 Series switches utilize stainless steel, or zinc
bodies. Ideal for any small tank or vessel destined for a
rugged environment.
All-stainless steel material of construction of Types 9 and 11 is generally
recognized as safe with FDA for food contact regulations.
Type 6 – External Mounting Type 8 – External Mounting
Polysulfone float. Zinc alloy body with polypropylene or
nylon float. SAE Mounting.
Zinc alloy body with nylon
or polypropylene float.
Type 9 – External Mounting
316 Stainless Steel body with 316 SS,
nylon or polypropylene float.
Type 11 – Internal Mounting
316 Stainless Steel body
with 316 SS float.
Dimensions
Type 6 Type 8
Common Specifications
Switch Rating*: SPST, 20VA
Lead Wire Gauge: No. 22 AWG
Mounting Attitude: Horizontal.
*See “Electrical Data” on Page X-5 for more information.
Type 9 Type 11
A-9
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LEVEL SWITCHES – SINGLE POINT
Mounting
Type
Materials Min.
Liquid
Sp. Gr.
Operating Temperature Operating
Pressure, Max.
Float Arc
Envelope
Part
Number
Stem and
Mounting Float Lead Wire
Jacket
6Zinc
Alloy*
Nylon TFE†.65 -40°F to +250°F (-40°C to +121°C) 100 psi @ 70°F 1.36 155660
Polypropylene .75 -40°F to +225°F (-40°C to +107°C) 150 psi @ 70°F 1.36 179870
8Zinc
Alloy*
Nylon TFE†.65 -40°F to +250°F (-40°C to +121°C) 100 psi @ 70°F 1.40 160950
Polypropylene .55 -40°F to +225°F (-40°C to +107°C) 150 psi @ 70°F 1.40 162795
9
316
Stainless
Steel
316 S.S.
TFE†
.80 -40°F to +300°F (-40°C to +149°C) 300 psi @ 70°F 1.43 164870
Nylon .65 -40°F to +250°F (-40°C to +121°C) 100 psi @ 70°F 1.40 164850
Polypropylene .55 -40°F to +225°F (-40°C to +107°C) 100 psi @ 70°F 1.40 164860
11 316 Stainless Steel Teflon®.80 -40°F to +300°F (-40°C to +149°C) 300 psi @ 70°F 1.65 179445
Switch Operation
Depending on the mounting position, the float on these switches can either rise or lower
with the liquid level. By rotating the switch 180°, the switch operation can be Normally
Open or Normally Closed.
Normally Open
FLOAT ARC
ENVELOPE
Normally
Closed
When the switch is mounted
so that the float rises with the
liquid level, the switch is N.C.
When the switch is mounted
so that the float lowers with the
liquid level, the switch is N.O.
How To Order – Select Part Number based on specifications required.
†Thermoplastic Elastomer Zip Cord.
– Stock Items.
*Zinc Alloy Material Note:
When mounted in certain cathodic metals, including stainless steel, and used in
water-based liquids, galvanic corrosion may occur. Consult factory for information.
FLOAT TYPE
