Screw plug heaters

Vulcanic screw plug heaters are designed to heat fluids (water, oil, heavy fuel, glycol, acids, caustic soda, asphalt,etc.) or gases (air, nitrogen, CO2, etc.) by natural or forced convection up to 75 kW, 750 V 3-ph, 400 °C, 25 bar.

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Horizontal or vertical mounting on the vessels for statics fluids or inside vessels for fluid circulation heaters.

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Vulcanic screw plug heaters comprise a very compact bundle of pin heating elements available in several materials compatible with the fluids to be heated (steel, stainless steel, Incoloy®, etc.).

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The heating elements are brazed or welded onto a threaded plug conforming to the metric ISO standard (M45x20 and M77x200) or BSPP standard (1″ up to 2″1/2).

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Screw plug heaters can be equipped with control and safety devices (thermostats, Pt100 sensor, thermocouples, etc.) for the measurement of the temperature in the fluid or of the heating elements.

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An electrical control and power supply unit with IP44 to IP66 protection rating, in polyamide, aluminium or painted or stainless steel, protecs the connections from the heating elements to the power supply and from the control and safety devices to the power cabinet.

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Vulcanic screw plug heaters are designed ans manufactured as part of our standard range or as a customised solution in our factory in St Florentin for installation on vessels, conforming to European directive 2014/68/EU (PED).

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Stainless steel screw plug heaters

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Screw plug heater with aluminium terminal box

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Screw plug  heater with control thermostat

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Product summary