TCR Arabia - NDT and Material Testing Services in Saudi Arabia
NDT and Material Testing per ASTM API and NACE in Saudi Arabia

PWHT of Pressure Vessels using Oil Firing Method
TCR Arabia has a talented crew that uses diesel fuel as source of heating for stress relieving for pressure vessels with the sole objective of reinforcing process and component integrity and quality. The experience heat treaters from TCR Arabia have the experience, equipment, and expertise to develop custom configuration for your particular process. Our heating processes include low-Range, Mid-Range & High-Range Temperature Heating.

TCR Arabia's high velocity burners enable excellent temperature distribution and uniformity at all times due to the intense scrubbing action. TCR Arabia is also able to construct temporary furnaces at our clients sites where internal firing is not a practical or cost effective option.

The heat treatment operation will be effected by the firing of the furnace using one or more gas/oil high velocity burners with a nominal rating of 1,500.000 Kcals/hr (6,000,000 Btu/hr) per burner. Armoured flexible hosing to Combustion Air Fan (s), with a maximum output of 2800/Nm3 per hour via a 150mm diameter outlet, at a pressure of 700mm W.G, will connect each burner. Each burner will be fitted with a (25/20) stainless steel outlet nozzle designed to clear the furnace wall adjacent to the intended opening(s) and in such a way as to eliminate the possibility of any direct impingement on components.

Strong Commitment to Safety
All burner (and associated) equipment shall be fully maintained and tested prior to despatch to site. This shall include the test firing of burners and the artificial creation of flame failure situation. Each burner will be protected by a flame safety unit, whereby ultra violet sensors constantly signal to a flame safety unit. In the event of this signal being interrupted (i.e. loss of burner flame) the flame safety unit automatically closes down fuel inlet valve to burner, and simultaneously sounds a (klaxon) alarm to alert the supervising technician to the situation. As an additional safety factor, the main Maxon valve at the flame safety unit will always be manually re-set before re-ignition can be effected.

Before a Heat Treatment is switched on particular attention shall be paid to the work area to ensure that there are no combustible materials present which can be affected by the heated zone, and that fire prevention/protection measures are available.

Documentation And Reporting Of Test Results
Upon completion of each electrical resistance Local PWHT cycle, the Local PWHT Thermocouple Identification form shall be filled in and attached to the recorder chart. The time temperature curves on the recorder chart shall be marked to identify the corresponding thermocouples. The Local PWHT Report Form shall be filled and handed over to client as generic records. PWHT chart shall be signed at the start of PWHT cycle by approved PWHT technician with weld number, date, start time etc. Thermocouple identification form will fixed on the chart after PWHT cycle.