“Conventional” Pressure Relief Valve Component; Conventional Pressure Relief Valve (PRV) has a duty to protect Vessel not to have the pressure exceeded ( Overpressure) by PRV will open to release pressure from the system when the voltage is greater than the pressure of the spring of PRV for Conventional Spring. -loaded PRV has the following components. Continue reading Conventional Pressure Relief Valve Component (Intro)
Spring Support; Let’s get to know the different parts of Spring Support Pipe Supports Inspection – Spring Hanger 1; When checking the piping, don’t forget to check the spring coil damage Pipe Supports Inspection – Spring Hanger 2; Check the position of the Spring Hanger to be in the correct position where Cold position = In shutdown and fluid unloaded (Installation load), and Hot position = In operation (Operating load). Continue reading Pipe support – Spring Hanger (Notes)
RT Film Density Definition; Intensity (Density) of the Film from the Radiography Testing (RT) refers to the darkness of the RT film as measured by the amount of light that can penetrate RT film came to light that indicates that the Film with density is low, but if. Low light means that the film has a high density. RT Film Density Measurement; Measuring the intensity (Density) of the Film from the Radiography Testing (RT) can be achieved. Using a Densitometer to measure the amount of light that penetrates directly through the RT film, the device will display the number of film intensity Use Standard Film with different levels of intensity (Step Wedge Comparison Film) to compare with the intensity of our RT film … Continue reading What is RT film Density ?
Steam Erosion at Flange / Gasket Face (Case Study 1); Erosion (Erosion-Corrosion) by Steam area Flange / Gasket Face of Tubesheet of Shell and Tube Heat Exchanger, so remember to check the area. Flange / Gasket Face thread. Steam Erosion at Flange / Gasket Face (Case Study 2); Another Case study of the Steam Erosion at Flange face (Gasket face) of Top Outlet Nozzle of Steam Tower. Continue reading Steam erosion on Flanges (Samples)
Relate topic: What is CUI – Corrosion under insulation and on Cooling tower Cooling Tower Work; Cooling Tower to do evaporation of some water in the water system ( the Cooling the Water) cool by spraying (for Spray). Hot Cooling Water to flow through the air against the Packing to increase the contact surface between water and air. When the water and the air come in contact with each other, some water will evaporate and cool the cooling water. Cooling Tower Component; The main components of Cooling Tower include exhaust fans, pipes and fittings for the Spray Water Cooling water, Pack to … Continue reading What is Cooling tower in refinery plant
CUI Locations Guideline in Vertical Vessel; The potential area for Corrosion Under Insulation (CUI) is the area where water can be trapped in the insulation or fireproofing. For the vertical vessel, there is a risk point as in the picture. Critical Factors a) It affects externally insulated piping and equipment and those that are in intermittent service or operate between: 1) 10°F (–12°C) and 350°F (175°C) for carbon and low alloy steels, 2) 140ºF (60°C) and 400ºF (205°C) for austenitic stainless steels and duplex stainless steels b) Corrosion rates increase with increasing metal temperature up to the point where the water … Continue reading What is CUI – Corrosion under insulation on Cooling tower
Globe Valve Component; Globe Valve is used to control the flow rate. By turning the flow direction of the fluid perpendicular to the fluctuations of the Disc and Stem by Globe valve components as follows: Globe Valve Working; Globe valve controls the flow rate by turning the fluid direction upright and perpendicularly, allowing for easy opening and closing. Therefore, it can be used for systems with very high-pressure differences, but due to the change in the flow direction, the pressure drop across the Globe valve is increased accordingly. Continue reading Globe Valve components and working
Erosion by Steam and Condensate; Erosion or erosion by Steam and Steam Condensate is caused by Steam / Condensate In our system, a two-phase state occurs: Steam vapor is mixed with condensate water. The reason why the two-phase is caused by: The steam loses heat and energy from running through pipes causing condense to be liquid condensate. Using Steam to heat exchangers in Heat exchanger devices causes liquid condensate to occur. Condensate water in the system is able to evaporate ( flash ) to steam vapor when the pressure in the pipe changes from high to low pressure, such as at the Steam Trap outlet. Continue to … Continue reading Piping erosion by Steam
Barlow’s Formula; Barlow’s Formula is the relationship between Internal Pressure and working pipelines. Depending on the size and strength of the material, Barlow’s Formula is the basic formula used to calculate the thickness of the straight pipe and Cylindrical pressure vessel shell in ASME Code. What is “S” Allowable stress: See SMTS and Allowable Stress Continue reading Barlow formula – Pipe thickness calculation
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