Line liquid heaters

We provide services in dimensioning calculation and selection of line liquid heaters intended for operation in Ex-zones (classified as Zone 1, 2, 21, or 22). Each line liquid heater is based on electric heating elements in a range of rated power output and with an optional thermostat. The products are available in different versions of materials for corrosive and non-corrosive media.

Line liquid heaters
Grupa WOLFF

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We will answer questions about: offer, technical specification, delivery, assembly.

Industrial line heater | ATEX gas / dust zones | Ex-D type

The ATEX-certified industrial line electric heater is intended for non-corrosive process media. The product features a thermostat control with a thermal cut-out. The standard versions of the product can be supplied with any electrical power source up to 690 V (600 V CSA). All electrical components of the product are installed in an Ex d flameproof enclosure which permits operation in explosive gas or dust atmospheres (the product is ATEX-certified for Zone 1, 2, 21, and 22).

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Water heater | ATEX gas zones | RFA-OS type

The RFA-OS water heater is an excellent source of domestic hot water in technical or laboratory rooms located in explosion hazard Zone 1 or 2 (of explosive gas or vapour liquid atmospheres). These heaters are suitable for the application in chemical processing plants and offshore settings.

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Line heater | ATEX gas / dust zones | FP-MLH type

The FP-MLH electric line heater for gas and liquid media is very compact and requires little installation space. It is also ATEX-certified for operation in Ex-zones. The line heater’s vessel is made of mild steel or stainless steel, depending on the ordered version. The heating elements’ casing can be made of Incoloy 825/800, stainless steel, or mild steel. The electrical components are sealed in a flameproof aluminium alloy housing (which can optionally be made of stainless steel or mild steel). The housing features two cable glands, M20 and M25. The line heater can be powered with single-phase AC power (220-254 V) or three-phase AC power (380-440 V).

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Key benefits: line liquid heaters

  • ATEX-compliant design
  • Compact design
  • Maintenance-free
  • Optional thermostat support
  • Large selection of replaceable parts available
  • Corrosion-resistant versions
  • Quick installation
  • First-class manufacturing quality
  • High heat output ratings

The line liquid heaters can be used with flammable and explosive media. The products are ATEX-certified. The product versions are customized to the specified operating conditions and the medium to be heated; this ensures a high corrosion resistance and a high heating efficiency.

The heart of the line liquid heater is an electric heating element installed in a thermally insulated vessel through which the medium flows. The electric heating element can be managed precisely by a thermostat control.

Comprehensive investment implementation

Depending on your needs, we can provide only heating devices or perform for you a set of works involving the selection of a radiator for a given room or calculations for media heaters, so as to ensure the required temperature. In addition, we will perform mechanical and electrical installation in a safe manner, which is particularly important when the equipment is to operate in hazardous zones.

  Explosion safety

Due to over 25 years of experience in the field of explosion safety, if installation will process flammable or explosive dusts, we are able to make appropriate systems to protect against the effects of an explosion and studies required by law (including explosion risk assessment, determining of explosion hazard zones, explosion protection document).

Do you have any questions?

Grupa WOLFF

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We will answer questions about: offer, technical specification, delivery, assembly.

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