Small Size - Alloys LS-7 Series - Compact Alloy and Alloy/Plastics Side Mounts LEVEL SWITCHES - SINGLE POINT 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 Type 11 - Internal Mounting 316 Stainless Steel body with 316 SS, nylon or polypropylene float. 316 Stainless Steel body with 316 SS float. Dimensions Type 6 Type 8 LEAD WIRES, 24 EXTENDED 1.40 (36 mm) REF. Common Specifications 3-29/32 REF. (99.2 mm) 3.38 (86 mm) REF. Switch Rating*: SPST, 20VA 1-1/32 REF. (26.2 mm) 5/16 REF. (8 mm) Lead Wire Gauge: No. 22 AWG Mounting Attitude: Horizontal. *See "Electrical Data" on Page X-5 for more information. 11/16 (17 mm) REF. 7/8 (22 mm) -14 JAM NUT 1.00 HEX #22 AWG ZIP CORD LEAD WIRES 24 EXTENDED 7/8 (22 mm) -14UNF THD Type 9 LEAD WIRES, 24 EXTENDED 5/8 WRENCH FLAT 1/2 NPT Type 11 1-5/8 REF. (41.3 mm) 5-5/16 REF. (135 mm) 1/2 NPT 5/8 DIA. REF. (15.9 mm) .83 REF. (21 mm) LEAD WIRES, 24 EXTENDED 4-9/16 REF. (116 mm) 5/8 (16 mm) -11 JAM NUT WITH VITON GASKET 5/8 (16 mm) -11 THD A-8 Visit www.GemsSensors.com for most current information. 5/8 (16 mm) DIA. REF. FLOAT TYPE 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 Normally Closed FLOAT ARC ENVELOPE When the switch is mounted so that the float lowers with the liquid level, the switch is N.O. When the switch is mounted so that the float rises with the liquid level, the switch is N.C. LEVEL SWITCHES - SINGLE POINT Switch Operation How To Order - Select Part Number based on specifications required. Mounting Type 6 8 9 11 Materials Stem and Mounting Zinc Alloy* Zinc Alloy* 316 Stainless Steel Float Nylon Polypropylene Nylon Polypropylene Lead Wire Jacket TFE TFE 316 S.S. Nylon TFE Polypropylene 316 Stainless Steel Teflon (R) Min. Liquid Sp. Gr. Operating Temperature Operating Pressure, Max. Float Arc Envelope Part Number .65 -40F to +250F (-40C to +121C) 100 psi @ 70F 1.36 155660 .75 -40F to +225F (-40C to +107C) 150 psi @ 70F 1.36 179870 .65 -40F to +250F (-40C to +121C) 100 psi @ 70F 1.40 160950 .55 -40F to +225F (-40C to +107C) 150 psi @ 70F 1.40 162795 .80 -40F to +300F (-40C to +149C) 300 psi @ 70F 1.43 164870 .65 -40F to +250F (-40C to +121C) 100 psi @ 70F 1.40 164850 .55 -40F to +225F (-40C to +107C) 100 psi @ 70F 1.40 164860 .80 -40F to +300F (-40C to +149C) 300 psi @ 70F 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. Visit www.GemsSensors.com for most current information. A-9