Pressure Vessels engineering and design

This specification discusses pressure vessel engineering and design in compliance with the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1. This specification in combination wi...


Pressure Vessel fabrication

This specification discusses pressure vessels' fabrication process and technique in compliance with the ASME Boiler and Pressure Vessel Code, Section VIII, Division 1. This specification...


Pressure Vessel Inspection, Testing, Painting, Marking, Preparation for Shipping and Storage

This specification discusses pressure vessels' Inspection, Testing, Painting, Marking, Preparation for Shipping and Storage in compliance with the ASME Boiler and Pressure Vessel Code, Se...


Materials Application and Limitation of using gate, globe, ball, and check valves

Nodular Iron, Cast Iron, Aluminum, and Copper Based Alloy Valves Nodular (ductile) iron valves, either austenitic or ferritic, should only be used within the limits of ASME B31.3 provided th...


Chloride stress corrosion cracking [CSCC] in stainless steel

Prevention of Chloride stress corrosion cracking [CSCC] in austenitic stainless steel material for closed loop water/glycol mixture are as follows: Elimination of oxygen is an effective me...


Vapor Liquid Phase equilibrium [VLE] data Source

Some important sources for phase equilibrium data are: Dechema Chemistry Data Series: several volumes on VLE, LLE, gas solubility, heat of mixing, azeotropes of many binary mixtures as well...


Lubricator Valve functionality in a Subsea Test Tree and Landing String

The lubricator valve for the subsea test tree is a surface-operated hydraulic valve that is run from one or two joints below the flow­head. It enables the top of the string to be used as a lub...


Application and Limitation of using gate, globe, and check valves

Single or double valves at a classification change should be suitable for the more severe line classification on either side of the valve(s) location. At a line classification break, a single ...


Recommended design for a weighted spray in a column tower

A weighted spray was developed to form a unique spray pattern that holds very constant velocity and consistent spray pattern regardless of flow, therefore, overcoming turndown problems in othe...


Overview of Petroleum Crude Unit Process

The crude unit physically separates the crude oil charge into fractions of specific boiling ranges by distillation and steam stripping. These fractions undergo further processing before being ...


Stress Analysis of Piping Critical Lines

When starting to study Piping Stress Analysis, each piping line should be explored based on critical features such as fluid service, pipe size, pipe material, design parameters and loading con...


Flowline - Pipeline Thermal Expansion Calculation

SUMMARY Flowline/Pipeline Thermal/Pressure Expansion can be developed for submarine pipelines (both single pipe and Pipe-in-pipe) expansion assessments due to pressure and temperature, ref...


Application of Thermal Sprayed Aluminum to Subsea Structures

1.0 Scope This specification defines the minimum requirements for the surface preparation, application and inspection of thermal sprayed aluminum (TSA) coatings to subsea structures (e.g., ...


How to evaluate the Glycol sample test result?

Interpretation of Test Results Sample Color Pure glycol is water clear. With use, however, the glycol solution can become discolored. Generally this discoloration can be attributed to one o...


Dielectric Constant or relative permittivity of Gases

Table below gives the relative permittivity ε or the dielectric constant of some common gases at a temperature of 68°F (or 20 °C) and pressure of one atmosphere. Values of the permanent dipole momen...