Hebei Haihao High Pressure Flange & Pipe Fitting Group Co.

  • Petrobras firms up deals for Marlim 2 FPSO with Yinson

    Petrobras firms up deals for Marlim 2 FPSO with Yinson

    Project Owner: Petrobras FPSO Contractor:Yinson Holdings Berhad Yinson won two letters of intent from Petrobras in October 2019 for the charter and operation of the Marlim 2 FPSO for the Marlim revitalization project in Brazil. The company said at the time ...
  • What is the difference between working, burst and proof test pressure?

    What is the difference between working, burst and proof test pressure?

    For a piping component,it will have a working pressure,proof test pressure and burst pressure.What is the difference between these pressure specifications for pipe fittings? The working pressure is the working conditions range of the pipe fittings or flang ...
  • Non-destructive testing methods of pipeline products

    Non-destructive testing methods of pipeline products

    Non-Destructive Testing(NDT) is used in inspecting,testing,or evaluating materials,components or assemblies for discontinuities,or differences in characteristics without destroying the pipes,fittings or flanges.That means the products can still be used whe ...
  • What is a charpy impact test?

    What is a charpy impact test?

    The Charpy impact test, also known as the Charpy V-notch test, is a high strain-rate test that involves striking a standard notched specimen with a controlled weight pendulum swung from a set height. The impact test helps measure the amount of energy absor ...
  • Destructive testing of piping welds-Transverse Tension Test and Guided Bend Test 

    Destructive testing of piping welds-Transverse Tension Test and Guided Bend Test 

    Destructive weld testing, as the name suggests, involves the physical destruction of the completed weld in order to evaluate its characteristics. This method of testing is used frequently for a number of applications. Some of these applications include wel ...
  • Destructive testing of piping welds-Macro Etch Testing and Fillet Weld Break Test

    Destructive testing of piping welds-Macro Etch Testing and Fillet Weld Break Test

    Destructive weld testing, as the name suggests, involves the physical destruction of the completed weld in order to evaluate its characteristics. This method of testing is used frequently for a number of applications. Some of these applications include wel ...
  • Introduction of heat treatment in pipe manufacturing process

    Introduction of heat treatment in pipe manufacturing process

    Heat treatment process is an important part of pipe manufacturing. Through the heat treatment steps of heating, heat preservation and cooling, the work hardening, residual stress and metal deformation defects produced in the forming process can be eliminat ...
  • What is epoxy bituminous paint?

    What is epoxy bituminous paint?

    The main features of epoxy bituminous paint: Interpenetrating the network anti-corrosion layer.Chlorosulfonated polyethylene rubber with excellent anti-corrosion properties is used to modify traditional epoxy coal bitumen to form an interpenetrating networ ...
  • 3PE anti-corrosion pipe fittings

    3PE anti-corrosion pipe fittings

    3PE anti-corrosion pipe fittings refer to 3-coating polyolefin coating (mapec) external anti-corrosion pipe fittings. The anti-corrosion pipe fittings include elbow, tee, reducer, and other products. It is a common anti-corrosion pipe fittings. Other antic ...
  • Application of 3PE anticorrosive pipe fittings

    Application of 3PE anticorrosive pipe fittings

    There are many uses of 3PE anti-corrosion pipe fittings, and its function is really wide coverage. 1.Underground water supply and drainage, underground shotcreting, positive and negative pressure ventilation, gas drainage, fire sprinkler and other pipe net ...
  • 3PE anti-corrosive steel pipe

    3PE anti-corrosive steel pipe

    In China, 3PE anticorrosive steel pipes have been applied in oil and gas systems. nearly 4,000 kilometers of the national key project West-East Gas Pipeline have used 3PE anti-corrosion steel pipes. We have also exported a lot of 3PE coated steel pipes to ...
  • Q235B spiral steel pipes types

    Q235B spiral steel pipes types

    Q235B spiral tube is a commonly used raw material in spiral tubes. It is a spiral seam steel pipe welded with strip steel coil as the raw material and active double wire double-sided submerged arc welding. The main technical characteristics of the spiral s ...
  • Introduction of pipe thread

    Introduction of pipe thread

    Pipe threads are threads located on the pipe wall for connection. There are 55 degree unsealed pipe threads and 55 degree sealed pipe threads. Mainly used for pipeline connection, so that its internal and external threads are closely matched, there are two ...
  • The difference between pre-galvanized pipe and hot-galvanized pipe

    The difference between pre-galvanized pipe and hot-galvanized pipe

    The anticorrosion property of pipe is effectively improved by galvanizing. And the steel pipe galvanized mainly hot dip galvanized, pre-galvanized and galvanized three common methods, according to the final use of the steel pipe environment to choose the c ...
  • Why are the prices of 304, 304H and 304L stainless steel pipe fittings different?

    Why are the prices of 304, 304H and 304L stainless steel pipe fittings different?

    In fact, according to the content of chromium and nickel are 304 stainless steel, the composition contains 18% chromium (CR) and 8% nickel (Ni), but the main difference lies in the difference in carbon content. Among the three, the highest carbon content i ...
  • Why have FPSOs become so important for oil & gas companies?

    Why have FPSOs become so important for oil & gas companies?

    Conceptually, FPSOs have given oil and gas companies a lot of freedom and versatility with regards to exploration and extraction. FPSOs enables companies to produce oil & gas and explore increasingly remote areas at a cheaper price in comparison to tra ...
  • What does floating production storage and offloading (FPSO) mean?

    What does floating production storage and offloading (FPSO) mean?

    A floating production storage and offloading (FPSO) installation is a floating facility, usually based on a (converted) oil tanker hull. It is equipped with hydrocarbon processing equipment for separation and treatment of crude oil, water and gases, arrivi ...
  • Process and quality of welded flanges

    Process and quality of welded flanges

    A flange is used for attachment to another object, for instance, the end of a pipe. It can also be used for connection between two equipments, e.g. reducer flange, which is used for connection between the motor and the reducer, as well as the reducer and o ...
  • What are alloy steel A234 WP9 pipe fittings?

    What are alloy steel A234 WP9 pipe fittings?

    The process of manufacturing the ASTM specified A234 WP9 pipe fittings is referred to as wrought. Wrought grade fittings mean the alloy has been either cast or forged. The material used to produce ASTM A234 WP9 is low content alloy steel. One of the featur ...
  • Comparison of cold-rolled and hot rolled seamless steel pipes and their advantages and disadvantages

    Comparison of cold-rolled and hot rolled seamless steel pipes and their advantages and disadvantages

    There are mainly two kinds of stainless steel seamless steel pipes, namely, cold rolling seamless steel pipes and hot-rolled seamless steel pipes. The difference between them is obvious, each has its own advantages and disadvantages. Difference between col ...