Dwyer V4-2-U Offers

Features

• Leak proof body machined from bar stock
• Weatherproof, designed to meet NEMA 4
• Explosion-proof
• Installs directly and easily into pipeline with a threaded branch connection, tee, or flange
• Can be used in pipes 1-1/2" and up
• Electrical assembly can be easily replaced without removing the unit from installation so that the process does not have to be shut down
• High pressure rating of 1000 psig (69 bar) with the brass body and 2000 psig (138 bar) with the 316 SS body
• Unique magnetically actuated switching design gives superior performance.
• There are no bellows, springs, or seals to fail
• Instead, a free-swinging vane attracts a magnet within the solid metal switch body, actuating a snap switch by means of a simple lever arm

Specifications

• Service: Gases or liquids compatible with wetted materials
• Wetted Materials: Vane: 316 SS; Body: Brass or 316 SS standard; Magnet Keeper: 430 SS standard, 316 SS optional; Options: Other materials also available, consult factory (e.g. PVC, Hastelloy, Nickel, Monel, Titanium)
• Temperature Limit: -4 to 275°F (-20 to 135°C) standard, MT high temperature option 400°F (205°C) [MT option not UL, CSA, ATEX or SAA]
• Pressure Limit: Brass body 1000 psig (69 bar), 316 SS body 2000 psig (138 bar), optional 5000 psig (345 bar) available with 316 SS body and SPDT switch only
• Enclosure Rating: Weatherproof [meets NEMA 4 (IP65)] 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 EEx d IIB T6 -20°C & 75°C, EC-Type Certificate No.: KEMA 03ATEX 2383 SAA: Exd C T6 (T amb=60°C), Zone I
• Also FM approved
• Switch Type: SPDT snap switch standard, DPDT snap switch optional
• Electrical Rating: UL, FM ATEX and SAA models 10A @ 125/250 VAC
• CSA models: 5A @ 125/250 VAC; 5A res., 3A ind. @ 30 VDC
• MV option: 1A @125 VAC; 1A res., .5A ind. @ 30 VDC
• MT option: 5A @ 125/250 VAC [MT and MV option not UL, CSA, FM, ATEX or SAA]
• Electrical Connections: UL and CSA models: 16 AWG, 6" (152 mm) long
• ATEX and SAA unit: Terminal block
• Conduit Connection: 3/4" female NPT
• Process Connection: 1-1/2" male NPT
• Mounting Orientation: Within 5° of vertical for proper operation
• Units for horizontal installation (vertical pipe with up flow) available
• Set Point Adjustment: For universal vane: five vane combinations
• Weight: 4 lb 8 oz (1.9 kg)
• Agency Approvals: UL, CSA, CE, FM, SAA and ATEX