Name: Gems Sensors 164850
Brand: Gems Sensors
SKU: 164850

Stem Material: 316 Stainless Steel
Float Material: Nylon
Mounting Size: 1/2″ NPT Male
Switch Type: SPST (20 VA)

Gems LS-7 Series (Alloy) Compact Side Mount Level Switches Technical Specifications
● GENERAL
Description	Built for durability, the LS-7 Series (alloy) switches utilize stainless steel or zinc bodies. Ideal for any small tank or vessel destined for a rugged environment.
Food Contact Compliance	All-stainless steel material of construction of Types 9 and 11 is generally recognized as safe with FDA for food contact regulations.

● PRODUCT TYPES
Type 6 — External Mounting	Zinc alloy body with polysulfone, polypropylene or nylon float. SAE mounting; 7/8″-14 UNF thread with jam nut.
Type 8 — External Mounting	Zinc alloy body with nylon or polypropylene float. 1/2″ NPT, 1″ hex; #22 AWG zip cord lead wires, 24″ extended.
Type 9 — External Mounting	316 Stainless Steel body with 316 SS, nylon or polypropylene float. 1/2″ NPT, 5/8″ wrench flat.
Type 11 — Internal Mounting	316 Stainless Steel body with 316 SS float. 5/8″-11 thread with jam nut and Viton® gasket.

● DIMENSIONS
Type 6	1.40″ (36 mm) ref.; 3.38″ (86 mm) ref.; 7/8″-14 jam nut / 7/8″-14 UNF thread; 11/16″ (17 mm) ref.; lead wires 24″ extended.
Type 8	3-29/32″ (99.2 mm) ref.; 1-1/32″ (26.2 mm) ref.; 5/16″ (8 mm) ref.; 1.00″ hex; 1/2″ NPT; #22 AWG zip cord lead wires, 24″ extended.
Type 9	5-5/16″ (135 mm) ref.; 1-5/8″ (41.3 mm) ref.; 5/8″ dia. ref. (15.9 mm); 5/8″ wrench flat; 1/2″ NPT; lead wires 24″ extended.
Type 11	4-9/16″ (116 mm) ref.; .83″ (21 mm) ref.; 5/8″ (16 mm) dia. ref.; 5/8″-11 jam nut with Viton® gasket; 5/8″-11 thread; lead wires 24″ extended.

● ELECTRICAL / COMMON SPECIFICATIONS
Switch Rating	SPST, 20 VA.
Lead Wire Gauge	No. 22 AWG.
Mounting Attitude	Horizontal.
Switch Operation	Depending on mounting position, the float can rise or lower with liquid level. Rotating the switch 180° changes operation between Normally Open and Normally Closed. When the switch is mounted so the float lowers with liquid level, the switch is N.O.; when mounted so the float rises with liquid level, the switch is N.C.

● ORDERING INFORMATION
Mounting Type	Stem and Mounting	Float	Min. Liquid Sp. Gr.	Operating Temperature	Operating Pressure, Max.	Float Arc Envelope	Part Number
6	Zinc Alloy*	Nylon	.65	-40°F to +250°F (-40°C to +121°C)	100 psi @ 70°F	1.36	155660
6	Zinc Alloy*	Polypropylene	.75	-40°F to +225°F (-40°C to +107°C)	150 psi @ 70°F	1.36	179870
8	Zinc Alloy*	Nylon	.65	-40°F to +250°F (-40°C to +121°C)	100 psi @ 70°F	1.40	160950
8	Zinc Alloy*	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.	.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
Notes: ⚡ = Stock item. Lead wire jacket for all rows (except Type 11): TFE† (Thermoplastic Elastomer Zip Cord). Type 11 lead wire jacket: Teflon®. *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.