Steam and hot-water boiler

Three-pass firetube boiler design — combustion, geometry, pressure-part thickness, drawings and cost.

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  • Fire-tube boiler shell in the workshop

    Steam boiler tanks

    Fire-tube boiler shells and boiler room vessels

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  • Fitting a head to the shell of a horizontal pressure vessel in the workshop

    Pressure Vessel Fabrication Steps to ASME

    Building a pressure vessel differs from an ordinary storage tank: material traceability, head thickness checks after forming, nozzle reinforcement, PWHT and a hydrotest at 1.3 times.

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  • Pressure vessel under hydrostatic test with a pressure gauge in the Behineh Ab workshop

    Tank Hydrostatic Test, Step by Step

    The hydrotest is a tank's final exam before delivery, and we carry it out in our own factory. The test pressure, the work before filling, and the mistake that can ruin a tank while it is being drained.

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  • Furnace for post-weld heat treatment of a vessel

    Post-weld heat treatment (PWHT): when is it required?

    How weld thickness and material grade drive the need for heat treatment.

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