Dwyer Series L4 Flotect® Float Level Switch, Side Wall Mount w/ 316 SS Float

Description

Rugged and reliable the Series L4 Flotect® Float Switch operates automatically to indicate tank level. Perfect for starting or stopping pumps, opening or closing valves, or actuating level alarm signals. A unique magnetically actuated switching design gives superior performance. There are no bellows, springs, or seals to fail. Instead, the free-swinging float attracts a magnet within the solid metal switch body, actuating a snap switch by means of a simple lever arm. Float arm hinge design limits the arm angle to prevent vertical hang up. Applications: Direct pump control for maintaining level, Automatic tank dump operations, Control levels or provide alarms in sumps, scrubber systems, hydro-pneumatic tanks, low pressure boilers, and various water/wastewater treatment processes. Features Leak proof body machined from bar stock Choice of floats dependent on maximum pressure and specific gravity Weatherproof, designed to meet NEMA 4 Explosion-proof Installs directly and easily into tank with a threaded branch connection or flange Electrical assembly can be easily replaced without removing the unit from the installation so that the process does not have to be shut down Horizontal installation or optional top mount vertical installation Unique magnetically actuated switching design gives superior performance No bellows, springs, or seals to fail Free-swinging float attracts a magnet within the solid metal switch body, actuating a snap switch by means of a simple lever arm Float arm hinge design limits the arm angle to prevent vertical hang up. Specifications Service: Liquids compatible with wetted materials. Wetted Materials: Float and Rod: 316 SS; Body: Brass or 316 SS standard Magnet Keeper: 430 SS standard, 316 SS or nickel optional. Temperature Limits: 4 to 275°F (-20 to 135°C) standard MT high temperature option 400°F (205°C) [MT option not UL, CSA, ATEX or IECEx]. ATEX and IECEoptions: Ambient temperature -4 to 163°F (-20 to 73°C); Process temperature -4 to 163°F (-20 to 73°C). Pressure Limit: Brass body 1000 psig (69 bar), 316 SS body 2000 psig (138 bar). Standard float rated 100 psig (6.9 bar). Enclosure Rating: Weatherproof and Explosion-proof. **Listed with UL and CSA for Class I, Groups C and D; Class II, Groups E, F, and G. ATEX CE 0344 EX II 2 G Ed IIB T6 Gb -20°C?Tamb°C. -20°C?Process Temp°C. EC-Type Certificate No.: KEMA 03 ATEX 2383. ATEX Standards: EN60079-0: 2009; EN60079-1: 2007. IECECertified: For Ed IIB T6 Gb -20°C?Tamb°C. -20°C?Process Temp°C. IECECertificate of Conformity: IECEDEK 11.0071. IECEStandards: IEC 60079-0: 2007; IEC 60079-1: 2007. Switch Typist snap switch standard Electrical Rating, FM, ATEX and IECEmodels: 10 A @ 125/250 VAC (V~). CSA models: 5 A @ 125/250 VAC (V~); 5 A res., 3 A ind. @ 30 VDC. MV option: 1 A @ 125 VAC (V~); 1 A res., .5 A ind. @ 30 VDC. MT option: 5 A @ 125/250 VAC (V~). [MT and MV option not UL, CSA, FM, ATEX or IECEx] Electrical Connection and CSA models: 16 AWG, 6″ (152 mm) long. ATEX and IECEunits: terminal block. Conduit Connection:3/4″ (19.05 mm) female NPT standard or M25 with -BSPT option. Process Connection: 1-1/2″ (38.10 mm) male NPT or 1-1/2″ (38.10 mm) male BSPT standard, 2-1/2″ (63.50 mm) male NPT or 2-1/2″ (63.50 mm) male BSPT standard optional floats. Mounting Orientation: Horizontal installation standard, optional vertical top mount. Deadband: 3/4″ (19 mm) for standard float. Specific Gravity: 0.7 minimum with standard float. For other floats see Options/Accessories page. Weight:4 lb 9 oz (2.07 kg). Agency Approvals’, CE, CSA, FM, IECEx, UL**.**No Housing Option (-NH) has no approvals. Downloads Product Manual (PDF Download)