Monitor Flow in 1/2 to 2" Pipe, Explosion-proof, Leak Proof Body

Surprisingly compact, the Flotect® V6 Flow Switch is engineered to specifically monitor liquid, gas, or airflows. Operation is simple and dependable with no mechanical linkage as the flow switch is magnetically actuated. The lower body holds the flow vane and one magnet, which controls the switch actuating magnet in the separate upper housing. In most applications the switch is normally off with the pipeline flow forcing the vane against the vane spring. As the flow decreases the vane spring pushes back the vane, actuating the switch to signal an alarm or shutdown. Tees are available for installation in pipelines from 1/2" to 2", with bushings added the unit is easily adapted to 1/4" and 3/8" piping.

APPLICATIONS

• Protects pumps, motors and other equipment against low or no flow
  
• Controls sequential operation of pumps
  
• Automatically starts auxiliary pumps and engines
  
• Stops liquid cooled engines, machines and processing when coolant flow is interrupted
  
• Shuts down burner when air flow through heating coil fails
  
• Controls dampers according to flow
  
• Signals alarm when emergency shower in use

SPECIFICATIONS
Service: Gases or liquids compatible with wetted materials.
Wetted Materials: Standard V6 Models: Vane: 301 SS; Lower Body: brass or 303 SS; Magnet: ceramic; Other: 301, 302 SS; Tee: brass, iron, forged steel, or 304 SS. V6 Low Flow Models: Lower Body: brass or 303 SS; Tee: brass or 304 SS; Magnet: ceramic; O-ring: Buna-N standard, Viton® optional; Other: 301, 302 SS.
Temperature Limits: -4 to 220°F (-20 to 105°C) standard, MT high temperature option 400°F (205°C) [MT not UL, CSA or ATEX]. ATEX compliant AT option ambient temperature: -4 to 167°F (-20 to 75°C), process temperature: -4 to 220°F (-20 to 105°C).
Pressure Limit: Brass lower body with no tee models 1000 psig (69 bar), 303 SS lower body with no tee models 2000 psig (138 bar). Brass tee models 250 psi (17.2 bar), iron tee models 1000 psi (69 bar), forged and stainless steel tee models 2000 psi (138 bar), low flow models 1450 psi (100 bar).
Enclosure Rating: Weatherproof and Explosion-proof. Listed with UL and CSA for Class I, Groups A, B, C and D; Class II, Groups E, F, and G. (Group A on stainless steel body models only). ATEX 0344 II 2 G EEx d IIC T6 Process Temp≤75°C, EC-Type Certificate No.: KEMA 04ATEX2128.
Switch Type: SPDT snap switch standard, DPDT snap switch optional.
Electrical Rating: UL models: 5A @ 125/250 VAC. CSA and ATEX models: 5A @ 125/250 VAC; 5A res., 3A ind. @ 30 VDC. MV option: .1A @ 125 VAC. MT option: 5A @125/250 VAC. [MT option not UL, CSA or ATEX].
Electrical Connections: UL models: 18 AWG, 18" (460 mm) long. CSA models: terminal block.
Upper Body: Brass or 303 stainless steel.
Conduit Connections: 3/4" male NPT standard, 3/4" female NPT on junction box models.
Process Connection: 1/2" male NPT on models without a tee.
Mounting Orientation: Switch can be installed in any position but the actuation/deactuation flow rates in the charts are based on horizontal pipe runs and are nominal values.
Set Point Adjustment: Standard V6 models none. Without tee models vane is trimmable. Low flow models are field adjustable in the range shown. See set point charts on opposite page.
Weight: 2 to 6 lb (.9 to 2.7 kg) depending on construction.
Options not Shown: Custom calibration, bushings, PVC tee, reinforced vane.
Agency Approvals: UL, CSA, CE and ATEX.

V6 SET POINT CHARTS - FACTORY INSTALLED TEE

APPROXIMATE ACTUATION-DEACTUATION FLOW RATES FOR AIR Upper figures are SCFM, Lower figures in LPM Pipe Size Actuate Deactuate 1/2" 6.50 180 5.00 120 3/4" 10.0 300 8.00 240 1" 14.0 420 12.0 360 1-1/4" 21.0 600 18.0 540 1-1/2" 33.0 960 30.0 840 2" 43.0 1200 36.0 1020

APPROXIMATE ACTUATION-DEACTUATION FLOW RATES FOR COLD WATER Upper figures are GPM, Lower figures in LPM Pipe Size Actuate Deactuate 1/2" 1.50 5.667 1.00 3.83 3/4" 2.00 7.5 1.25 4.67 1" 3.00 11.33 1.75 6.67 1-1/4" 4.00 15.17 3.00 11.3 1-1/2" 6.00 22.67 5.00 18.9 2" 10.00 37.83 8.50 32.2

V6 LOW FLOW SET POINT CHART