Webb24 juni 2016 · 4. 2.0 PURPOSE The aim of hydrostatic test is to ascertain the integrity - strength and leak tightness of the 4”,8” & 12” dia flow line/pipelines after fabrication, laying and installation by exerting a specified pressure @ 147 Bar generated through water medium on the gas flowline/ pipelines. 3.0 SCOPE This procedure covers the Flushing, … Webb1 jan. 2014 · Dewatering is considered to commence with the running of the first pig after hydrostatic testing is completed and begins with the insertion of a displacer, commonly …
Pipeline Drying / Pigging Adroit Utilities
WebbThe procedure for drying a pipeline after hydrostatic testing involves pushing a slug of methanol or glycol through the line between two pigs or spheres. Factors to consider in … WebbDry Procedure after Hydrotest/ Pigging / Steaming of Piping and Equipment (Recommendation) “Dry” means no visible wetness. 1. 11.. 1. Unless otherwise … service de verres à vin
Hydrostatic Testing - an overview ScienceDirect Topics
Webbcommon practice for the pipeline to be dried after the pressure test before it is put into operation. Drying Methods Three methods of drying the pipeline are commonly used, each of which can make use of a Kahn Ceramic Hygrometer. 1. Hot Air Drying The pipeline is fed at one end with a supply of heated air from an air compressor. Heat Webb11 apr. 2024 · Dewatering is considered to commence with the running of the first pig after hydrostatic testing is completed and begins with the insertion of a displacer, commonly … Webb14 juli 2024 · Maximum Hydrostatic Test Pressure for ASME B16.5 Flanged Joints: The Code ASME B16.5 set the Maximum Hydrotest on Pressure of Flange Joint must not exceed 1.5 times the MAWP of Flange at 38 C-Deg. –> Calculate 1.5 times of MAWP at 38 C-Deg = 1.5 x 19 = 30 bar. Finally, check with the system hydrostatic test pressure (it’s … service disruption