Thermal oil heaters

Thermal oil heaters are equipment used in different industries for heating special heating oils. This type of heaters is used in industry for transmitting indirect heat in different procedures.

Vestuy Industrial Company’s heaters are designed and produced with capacities ranging between 500,000 kcal/h to 5,000,000 kcal/h based on the request and the capacity required by the customer.

A thermal oil heater needs equipment such as expansion source and … in addition to regular equipment such as burner and circulation pump.

Technical specifications

The construction system is designed and produced in two ways; dry back and wet back; according to standard bs-2790 of England and standard 4231 of Iran, for 6, 8 and 10 bar work pressure and it is tested hydrostatically with 10, 13 and 16.5 bar pressure. The type of these boilers is fire tube and three-pass.

Structural characteristics

All the steel material used in the shell, furnace and grates is according to standard 17 mn4 or a 516-gr 70. And all flame pipes between the two grates are in accordance to standard ST 35.8.

All the parts of the boiler are welded by full automatic micro powder welding machines and special electrode 7018 is used finally, all the welded parts are controlled and non-destructive radiography and ultrasonic tests are performed. The boilers for survey and probable repairs have hand hole, man hole and mud hole hatches.

The standard of all the used flanges is PN 16. The design and construction of boilers doors (front – rear) are hinged and open-able and this way the probable repair of the boiler is easier.

The type of cement used is fondue of France and special refractory cement and for heat insulation of the boiler, insulation blankets are used and the boiler is covered finally with aluminum or steel sheets.