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Watlow BLR710L3S4
  • Watlow BLR710L3S4
  • Watlow BLR710L3S4 drawing

BLR710L3S4 screw plug immersion heater

  • Comes wired 240v 3-phase delta in a general purpose wiring enclosure
  • it has (3) 316-ss passivated 10.625-inch immersed length heating elements
  • with epoxy resin end seals rated at 194°F with an integral thermowell
  • and DPST 30A thermostat control from 30°F to 110°F with differential up to 12°F
  • The heater has no heat the first 2.625 inches from the 2-1/2"npt screw plug
  • and has an approximate shipping weight of 10/lbs.

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2-1/2"NPT Screw Plug Immersion Heater | BLR710L3S4

Applications that require heating deionized/Demineralized Water

  • Steam boilers and cooling systems
  • Manufacturing lead-acid batteries
  • Car washes
  • Electronics manufacturing
  • Medical and Pharmaceutical manufacturing
  • Cleaning processes
  • Manufacturing Cosmetics and Personal Care Products

Features & Benefits of the Watlow® immersion heater

The integral thermowell provides a convenient method for temperature sensor insertion and allowing a replacement without draining the fluid being heated. The CSA approved general purpose enclosure can be rotated to simplify connecting to existing conduits. The WATROD™ hairpin bend is re-compacted to maintain the mineral insulation density and maintain the dielectric strength and heat transfer efficiency. The heating elements have a bright annealing passivation for corrosion resistance and the screw plug is 316SS.

Product Details
1 Item

Data sheet

CSA general purpose
30° ~ 110°F range with up to 12° differential
Line power
240v AC 3-phase delta
4500 watt
2-1/2" NPT screw plug
Immersion Length