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two pass - reverse flame- wet back steam boilers. Gas or oil fired. Complete with all accessories - details see: https://www.machineto.com/wet-back-reverse-flame-2-pass-steam-boiler-10211896

1-Net heat transfer area inofrmation of the boilers are given to the customers.
2- Our boilers are CE certificated and constructed according to PED 97/23 EC directive.
3- Our company has ISO9001 quality management system certificate
4- Certifacated tubes and steels are used.
5- Boilers are insulated with min. 100 mm thick rockwool.
6- Tubes are roller expanded and then welded to the min. 15 mm thick mirror plates to prevent crackings.
7- For high pressure types combustion chambers are manufactured as corrugated type to provide higher strength and to overcome thermal expansion problems.
8- Upon request our boilers are supplied fully assembled with armatures and necessary equipments including deaorator, economisor and recuparator.
9- High quality and well known marks are used for armatures. All packaged boilers have furnace overheat alarm system.
11- Welding are controlled according to EN 12953 & PED97/23 requests by ultrasonic testing method. Tests are carried by EN473 & ASNT certificated personal.
12- It is easy to reach and clean the fire tubes of the boilers.
13- Welding are done according to approved WPS's and WPQR's.
14- Our welder are certificated according to EN 287. The welders are controlled by EN 719 certificated welding supervisor.
15- Rear smoke box are easy to disassemble to allow maintanence and cleaning.