Flow Switches

FSW-30A Non-magnetic Industrial Flow Switches

The Omega FSW-30A flow switches are supplied with six orifices to provide 6 overlapping flow ranges from 0.12 to 8.0 GPM for water. The FSW-31 is supplied with 3 different drag discs to provide 3 overlapping ranges from 6 to 70 GPM for water. The orifices and drag discs can be changed while the switch is in-line, but not while operating. The FSW-32 operates over the range of 4-8 GPM for water.

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Features

  • Rugged Industrial Design
  • Switch Point Adjustable Without Removing Unit from Line
  • 15 A SPDT Switch Directly Controls Pump
  • Easy Screw Terminal Wiring–No Soldering

Specification

  • Maximum Operating Temperature28 {C} (180{F})
  • Maximum Switching Current15 A
  • Maximum Pressure300
  • Maximum Switching Voltage125 or 250 Vac
  • Minimum Operating Temperature4 {C} (40 {F})
  • Relay switch: SPDT 15 A @ 125 or 250 Vac; 10,000,000 operations median
  • Sensitivity (% flow change required to activate switch): 5% at upper end of flow range, 25% at lower end of flow range
  • Max. Temperature/Pressure: 300 psig @ 82°C (180°F) max.
  • Min. Temperature: 4°C (40°F)
  • Wetted Parts: Red brass, 316 SS, phosphor bronze, Noryl®, EPDM (and PVC for Models FSW-31, 32). Other materials of construction: Brass body, Noryl® cover, stainless steel and plastic hardware
  • Pressure Drop:
  •    FSW-30A: 1 to 5 psi
  •    FSW-31A, FSW-32A (4 – 8 GPM range): 2 to 15 psi; all other ranges less than 2 psi
  • Electrical Cable Fitting: Water resistant for cable diameter 0.250′ ±0.025′
  • Option “D” (dual SPDT relays):
  •    Nominal Differential Flow Between the Two Relay Actuation Points: 5%
  • Dimensions: 1.43 H x 125.5 mm W (5.63 x 4.94′)
  • Weight: 1.59 kg (3.5 lb)

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