LEVEL SWITCHES – SINGLE POINT 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 Zinc alloy body with nylon nylon float. SAE Mounting. or polypropylene float. Type 9 – External Mounting Type 11 – Internal Mounting 316 Stainless Steel body with 316 SS, 316 Stainless Steel body nylon or polypropylene float. with 316 SS float. Dimensions Type 6 Type 8 3-29/32˝ REF. Common Specifications LEAD WIRES, (99.2 mm) 24˝ EXTENDED Switch Rating*: SPST, 20VA 1.40˝ 3.38˝ 1-1/32˝ REF. (36 mm) REF. (86 mm) REF. 5/16˝ REF. (26.2 mm) Lead Wire Gauge: No. 22 AWG (8 mm) Mounting Attitude: Horizontal. *See “Electrical Data” on Page X-5 for more information. 11/16˝ 1/2˝ NPT 1.00˝ 7/8˝ (22 mm) (17 mm) REF. HEX -14 JAM NUT #22 AWG ZIP CORD 7/8˝ (22 mm) LEAD WIRES -14UNF THD 24˝ EXTENDED Type 9 Type 11 LEAD 5-5/16˝ REF. 4-9/16˝ REF. WIRES, (135 mm) (116 mm) 1-5/8˝ REF. 24˝ 5/8˝ DIA. REF. .83 REF. (41.3 mm) EXTENDED (15.9 mm) LEAD WIRES, (21 mm) 24˝ EXTENDED 5/8˝ WRENCH 5/8˝ (16 mm) 5/8˝ (16 mm) FLAT DIA. REF. -11 JAM NUT 1/2˝ NPT WITH VITON GASKET 5/8˝ (16 mm) -11 THD A-8 Visit www.GemsSensors.com for most current information. FLOAT TYPE FLOAT ARC Normally Switch Operation Normally Open ENVELOPE Closed 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. 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. Materials Min. Mounting Operating Float Arc Part Liquid Operating Temperature Stem and Lead Wire Type Pressure, Max. Envelope Number Float Sp. Gr. Mounting Jacket Nylon .65 -40°F to +250°F (-40°C to +121°C) 100 psi @ 70°F 1.36 155660 Zinc † 6 TFE Alloy* Polypropylene .75 -40°F to +225°F (-40°C to +107°C) 150 psi @ 70°F 1.36 179870 Nylon .65 -40°F to +250°F (-40°C to +121°C) 100 psi @ 70°F 1.40 160950 Zinc † 8 TFE Alloy* Polypropylene .55 -40°F to +225°F (-40°C to +107°C) 150 psi @ 70°F 1.40 162795 316 S.S. .80 -40°F to +300°F (-40°C to +149°C) 300 psi @ 70°F 1.43 164870 316 † 9 Stainless Nylon TFE .65 -40°F to +250°F (-40°C to +121°C) 100 psi @ 70°F 1.40 164850 Steel 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 † 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. A-9 Visit www.GemsSensors.com for most current information. LEVEL SWITCHES – SINGLE POINT