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Immersion heaters that are part of a pressure vessel are designed, manufactured and inspected according to the pressure vessel code, Pressure Equipment Directive (PED), ASME VIII or other international codes. The selection of category according to PED should be advised by the customer, according to the conformity assessment.

The specific surface load is a measure for the heat transfer onto the heated medium. It must be chosen according to the medium, flow, pressure and mounting conditions as well as the medium temperature and admissible surface temperatures. With a specific surface load wich is optimized for the process, a high thermal efficiency will be
reached.

Please refer to the below table for ordering. If you need more information, please contact our sales representative for assistance.

All heaters are designed and manufactured according to the individual requirements of our customers.
Design, Manufacturing and Inspection according to European Pressure Equipment Directive (PED, 97/23/EC),ASME code or other international standards.
Design according to AD2000, ASME or other codes.
Explosion protected devices are supplied with EC type examination certificate(according to ATEX directive 2014/34/EU), IECEx certificates are available on project basis.
You will assist us to answer your enquiry within short time, if you give us as much as possible operating data for the required heater with your enquiry:
? Medium (if the medium is not common, please advise density, specific heat, heat conductivity and dynamicviscosity)
? Tank volume or flow rate for flowing media
? Operating temperatures, operating pressure
? Required heating capacity, nominal voltage
? Flange dimensions and rating, mounting thread
? Immersion length, unheated length (e.g. for mounting nozzle)
? Mounting position (horizontal or vertical)
? Ambient temperatures (standard: -20 I +40°C, special design for -40 I +55 °C)
? Materials for flange, heating bundle, connection box
? Design pressure, design temperature and design code for pressure vessel parts
? Protection (Ex hazardous area classification, IP)
? Special ambient conditions (e.g. outdoor mounting, offshore)

? Oil heating (lube oil, fuel oil, thermal oil)
? Water heating (industrial heating systems)
? Air heating (pressurized air, burner air, drying technology)
? Gas heating (natural gas, process gases, technical gases)
? Environmental technology (exhaust air cleaning, catalytic after burning)
? Steam generator, steam super heater (industrial process technology)
Design example

Flow heaters for liquid and gas

Flow heaters for high process temperature

Preheater for water, fuel, lubricating oil

Oil tank preheater

Block type gas preheaters
The medium is heated up indirectly inside a tube coil.The tube coil and the electrical heating inset are cast in an aluminium block which serves as heat transfer medium.

Gas preheater with inline process connections
Due to a special, double-walled design,the heat loss is reduced. Inlet and outlet nozzles are on the same level.

媒介是間接加熱管內(nèi)部線圈。
盤(pán)管和電加熱插圖是在一個(gè)鋁塊作為傳熱介質(zhì)。