Screw Plug Immersion Heaters
 Screw Plug Immersion Heaters are ideal for immersion min liquids, where space and connections are a problem. Screw Plug Immersion Heaters are installed in medium to small size containers at pressures up to 3000 PSI. Watt densities from 90 Watts/sq. inch, Explosion Proof (NEMA 7), Corrosion Resistant (NEMA 4X), and General Purpose Terminal housings are available. A number of sheath materials like Titanium, Incoloy, Stainless Steel, Steel, and Copper can be used as required for specific applications. To guarantee sheath material and watt density compatibility with material or process being heated consult HCS. Screw Plug Immersion Heaters Features: • High watt densities, wattage's in smaller areas • Passivated 316 Stainless Steel option • Sheath temperatures to 1200ºF • Low watt densities possible for delicate applications • NPT sizes from 1 " to 21 /2" • Applications solids, liquids, gases. Screw Plug Immersion Heaters Specifications / Options: Voltages. . . . . . . . . . . . . . . . 120 to 600 Volts Single or Three PhaseWattage's. . . . . . . . . . . . . . . Varied from 150 watts to 50 Kilowatts Sheath Materials. . . . . . . . . . .Titanium, Monel, Incoloy, 316/304 Stainless, Steel Copper, Carbon Steel Max Temperatures. . . . . . . . . Incoloy 1600 degrees F (870 C), 304 / 316 Stainless Steel 1200 degrees F (650), Steel 750 degrees F (400 C), Copper 350 degree F (175 C) Screw Plug Sizes NPT. . . . . . . 1 ",1 1 /4", 2", and 21 /2" BSP sizes call HCS Terminal Enclosures. . . . . . . . .General Purpose (NEMA 1 ), Moisture Resistant (NEMA 4), Corrosion Resistant ( NEMA 4X),, Explosion Resistant (NEMA 7), Explosion Moisture Resistant (NEMA 7/4) Temperature control. . . . . . . . Thermocouple, RTD, or Thermostat High Limit. . . . . . . . . . . . . . . .High Limit Thermocouple, Hi Limit Tstat, Approvals. . . . . . . . . . . . . . . .CSA, UL Certification. . . . . . . . . . . . . . ASME, CRR
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