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Add to cost of design and fabrication of many equipments (pressuere vessels by ASME code and fired heaters by API 560) to a refinery, We need know approach costing of following activities developed by our reperesentative (Purchaser's representive) on site, versus (%) total cost of equipments ...

We have to modify convection section in two fired heaters (oil refinery), to obtain a determined (by customer) outlet fuel gas temperature. So we have the following questions: 1. On their condictions, the shield section tube supports temperature design will be 2098°F; it is over API 560...

For calaculation of wall thickness of a pressure vessel, what means "primary stress" and "primary membrane stress" ? Thanks,

Could anyone tell me what is the Coefficient of Thermal Expansion value of SS 304H, for 1150°F?. Where can I found any list of that Coefficient, to any temperature value?

Could you tell me which are the general technical aspects to design and construction of a Fired heater in a Petrochimical and Refinery Plants? Thanks,

Could you tell me what are the criteria to define of Type of Heat Exchanger agree with Figure N-1.2 of TEMA, when I start its design ? Are mechanical criateria or are process/chemistry decriteria? Thanks.

Hi, when I read a vessel´s Data Sheet about its design conditions (eg : 350psig, 180°F), could you tell me what means "Vessel to be design for full vacuum at ambient conditions"? Thanks.

Hi, cold you tell me what are the criteria and method to selected value of Design Temperature, on calcultaions of diferent parts of a heat exchangers (under TEMA and ASME Sec. VIII, Div1 & Div.2)? Thanks,

Hi, we are searching any information about Maintenance of bolier, fabricated under Code ASME. Could anyone tell us, where can we found some text, web, about it? There any ChecList for those activities? Thanks,

Hello, I´m searching information about "lifting lugs" Design (calculus, design and method, junction welding design,etc.)to lift a fired heater stack (chimney). Does anyone know wher can I find it? Thanks.

Hello. Could you tell me what are the criteria and standards to define use or not of thermal insulation on a pressure vessel (columns, drums, heat echangers). Thanks.

In my refinery we bought one Fired Heater eight months ago. This equipment was fabricated by separated parts and we will install on field. In an inspection in storage the last week, we found superficial damage on refractory, caused for weather humidity (refractory was installed in shop). In this...

Hello, To design of pressure vessels under ASME Sect. VIII, what is de maximum value of tolerance for bending (deflection) in vertical columns. By some document I found 6inch/100ft; That is true? Thanks.

Bogu, My e-mail is wrodrigu@ecopetrol.com.co Thanks, Wrl

Where can I find information about design fo "explosion doors" (anti-explosion doors) of fired heaters. API-560 doesn´t explain it specify. Wrl69

Hello, Could anyone tell me where I can find some method to calculate and design baseplates (skids) to install on rotatory equipment systems (turbine + pump; motor + pump, etc)? I understand that calculus is under statics and dynamics conditions, but I have not found anything about. Thanks...

Hello, In repair of parts of fired heaters, what are the recommended field testing activities in coils (radiant and convection coils), refractory, casing, stacks, etc, after its repairs ? Or, where can i found information about it? Thanks, Wrl69

I´m looking what criteria define necessity of explosion doors on fired heaters designed by API-Std-560, and its dimensions, location and quantity.