In the realm of piping systems and flange connections, understanding the various sealing face types is crucial for ensuring leak-proof and efficient operations. Two common types of sealing faces are Raised Face (RF) and Ring Type Joint (RTJ). Each type has distinct characteristics and applicatio ...

What Causes Heat Treatment Deformation? During heat treatment, metal parts such as flanges or fittings can change shape. This happens because of uneven heating or cooling, creating internal stresses. Other reasons include poor fixture design or the wrong choice of heat treatment process. The mai ...

Heat treatment deformation is influenced by several factors, each contributing to the overall behavior of the material during the process. Understanding these factors is crucial for controlling and minimizing deformation. Below are the key factors: Heat treatment 1.Carbon Content and Its Impact ...

Haihao Group recently responded to an urgent request from a long-term client in Singapore. The client needed two specific products for their project: ASME B16.20 spiral wound gasket 28″ ASME B16.20 Spiral Wound Gasket 28″ ASME B16.47 RF A105N Blind Flange Although the order quantity ...

Hot-dip galvanizing is a widely used method to enhance the corrosion resistance of steel components, including flanges. This process involves coating steel with a layer of zinc, which acts as a protective barrier against environmental elements, thereby significantly extending the product’s ...

Haihao Group has been actively participating in offshore engineering projects in recent years. This article introduces the swivel flange, a common component used in marine pipeline systems. Swivel flanges consist of two primary components: a forged hub and a forged outer ring. The outer ring is ...

A Singaporean client recently placed an order for ASTM A694 GR. F65 compact flanges, specifying strict requirements for the chemical composition and heat treatment of the material to ensure the highest quality and reliability. Chemical Composition (%, max values): Carbon (C) Manganese (Mn) Ph ...

The new expansion techniques for connecting heat exchanger tubes to tube sheets include hydraulic expansion and rubber expansion methods. Below, we will provide a detailed introduction to these two techniques. tube sheet inspection Hydraulic Expansion Method: This technique involves applying hig ...

The traditional expansion joint techniques for connecting heat exchanger tubes to tube sheets include the roller expansion method and the explosive expansion method. Let’s take a closer look at these two methods. forged tube sheets Roller Expansion Method: This technique involves embedding ...

The connection between tubes and tube sheets is a crucial structural component in the design of shell and tube heat exchangers. This process not only involves significant machining work but also requires that every connection maintains a leak-proof seal and withstands the pressure of the working ...

Haihao Group proudly participated in Tube China 2024, where we successfully handled hundreds of clients from various industries. Our team’s professionalism, strict standards, and genuine approach earned the trust of many, making them choose Haihao Group as their preferred piping solutions ...

A tube sheet is a flat metal plate featuring multiple circular holes for connecting to pipelines. Typically, it appears as a relatively thick rectangular or circular plate, with hole arrangements and sizes designed to match the diameters of the connected pipes. The edges of the tube sheet often ...