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Sep 27, 2024

Introduction of flanges

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In the grand scheme of pipeline connection, flange connection is undoubtedly a crucial and widely used technology.

In the grand scheme of pipeline connection, flange connection is undoubtedly a crucial and widely used technology. It not only reflects the integrity and continuity of the pipeline system, but also ensures the safe and efficient transmission of fluids. This connection, through a series of carefully designed components, enables a tight connection between the pipes, laying a solid foundation for stable operation in the industrial sector.

The flange, the cornerstone of this connection, usually consists of two delicate and sturdy flanges that stand opposite each other, ready to work hand in hand. The bolts, these brave little warriors, pass through precise holes in the flanges and pull the two together tightly, forming an impenetrable line of defense. In this process, the flange washer is like a wise mediator, lying quietly between the two flanges, filling any tiny gap with its soft and tough body to ensure that the sealing performance of the connection is impeccable.

When it comes to flanges, we have to mention their important role as a bridge connecting pipes, valves and various types of equipment. These flanges, which are carved from metal, not only carry the heavy load of connection, but also follow the strict specifications of the American standard flange standard with their fixed size and shape. Each inner diameter, outer diameter, aperture and even the shape of the end face are the perfect combination of precision and process to ensure the reliability and safety of the connection.

The importance of bolts, as a link, is self-evident. They are precisely matched to the aperture on the flange according to established standards, ensuring the stability and safety of the connection. These bolts, whether forged from carbon steel or stainless steel, have excellent strength and corrosion resistance to stand up in harsh environments.

As for the flange washer, it is the finishing touch in the connection. They are cleverly filled between the gaps on the surface of the flange, with soft and rigid, not only to achieve the sealing effect, but also to compensate for the surface of the uneven. According to different application requirements, flange gaskets can be selected from a variety of materials such as asbestos, rubber or metal, each of which has its unique properties and advantages, providing more possibilities for the stability and reliability of the connection.


ltem

Content

Standard

GB/T 9112 ~ GB/T 9124

SH 3406 

HG 20592 ~HG 20605 , HG 20615 ~HG 20626

ASME B16.5 

ASME B16.47

or according to the client’s standards or technical requirements

Material

Carbon steel, alloy steel and stainless steel

Size

DN15~DN2000

NPS 1/2 ~ NPS 80

Class

European system:

PN0.25MPa, PN0.6MPa, PN1.0MPa, PN1.6MPa, PN2.5MPa, PN4.0MPa, PN6.3MPa,PN10.0MPa, PN16.0MPa

American system:

PN2.0MPa, PN5.0MPa, PN11.0MPa, PN15 .0MPa, PN26.0MPa, PN42.0MPa /
Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500, Class 2500

Contact Surface

Type of contacet surface

Symbol

flat face

FF

raised face

RF

male and female

MF

tongue and groove

TG

ring joint face

RJ


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