If you don’t know how API 570 Certification scheme, See API 570 Certification Instruction IMPACT TESTINGThe inspector should be able to:a) Determine the minimum metal temperature of a material (MDMT), which is exempt from impact testing (ASME B31.3, Section 323.2.2, Figure … Continue reading API 570 Quiz (ASME 31.3 – MDMT and Impact Test)
If you don’t know how API 570 Certification scheme, See API 570 Certification Instruction PRESSURE TESTINGThe inspector should be able to:a) Demonstrate knowledge concerning hydrostatic leak testing (ASME B31.3 Section 345.4)b) Demonstrate knowledge concerning pneumatic leak testing (ASME B31.3 Section 345.5)c) … Continue reading API 570 Quiz (ASME 31.3 – Pressure Testing)
In this topic (most difficult part in EXAM), we will try one by one of the Open/Close questions on Module ASME 31.3 – Design pipe thickness as a part of in-the-exam API 570 Body of knowledge (BOK) If you don’t know how API 570 … Continue reading API 570 Quiz (ASME 31.3 – Design pipe thickness)
In this very first and priority topic, we will try one by one of the Open/Close questions on Module ASME 31.3 – Quality Factor as a part of in-the-exam API 570 Body of knowledge (BOK) If you don’t know how API 570 Certification scheme, … Continue reading API 570 Quiz (ASME 31.3 – Quality Factor of Weld-joint and Casting)
Certified API 570 Piping Inspectors (Salary rate 350-500usd/day) must have a broad knowledge base relating to maintenance, inspection, repair, and alteration of pressure vessels. The API 570 examination is designed to determine if individuals have such knowledge. To help you learn … Continue reading API 570 Certification Instructions
The Factors to consider when selecting a gasket Operating temperature and pressure, pipe size, temperature cycle, cost, chemical composition of fluid, fire resistance, radiation, etc In general of application, please use Pressure – Temperature chart as below for understanding the capability of each type of gasket. Sheet Gasket (Rubber gasket, Non-asbestos gasket, PTFE gasket, flexible graphite gasket) Rubber gasket is common with black color, but it is different. Compressed Synthetic Fiber Gasket (e.g. non asbestos or asbestos free) PTFE (Poly Tetra Flour Ethylene) Gasket Type: Virgin(Pure), Filled (Compressed Synthetic), Micro-cellular (Closed or Expanded), with thin metal reinforcement. Flexible Graphite Gasket … Continue reading Guide for selecting Gasket type
The flange face is the surface area that hosts the gasket. The 6 available types of flange face are flat (FF), raised (RF), ring joint (RTJ), lap joint, male and female (M&F), tongue and groove (T&G). Flanges with different faces require … Continue reading Flange Face Types, RTJ
The flange face is the surface area that hosts the gasket. The 6 available types of flange face are flat (FF), raised (RF), ring joint (RTJ), lap joint, male and female (M&F), tongue and groove (T&G). Flanges with different faces require … Continue reading Flange Face Types, Raised Face RF
ASME B16.5 Section 6.4.6 addresses acceptable flange facing surface finish imperfections. The requirements are:“Imperfections in the flange facing finish shall not exceed the dimensions shown in Table 3 (Table II‐3 of Mandatory Appendix II). A distance of at least four times the maximum radial projection shall separate adjacent imperfections. A radial projection shall be measured by the difference between an outer radius and inner radius encompassing the imperfection where the radii are struck from the centerline of the bore. Imperfections less than half the depth of the serrations shall not be considered cause for rejection. Protrusions above the serrations are … Continue reading ASME B16.5 para. 6.4.6 Flange imperfections
AMARINE 