A loose flange is a type of pipe flange. A loose flange, also known as a slip-on flange or a mother-and-child flange, is a flange that is loosely attached to the flange of a container or pipe. It is usually used on pipes, and the pipes on both sides can be rotated by loosening the bolts for easy disassembly and assembly.
Common materials for loose flanges
1. Carbon steel: Carbon steel is a common
material for loose flanges, and its main components are carbon and iron. This
material is inexpensive and has high strength, and performs well in some
general use scenarios. At the same time, carbon steel is easy to process and
can be processed into various types of flanges, which is convenient for users
to replace.
2. Stainless steel: Stainless steel is a
high-quality material that is rust-proof and is often used in the manufacture
of loose flanges. Compared with carbon steel, stainless steel has better
corrosion resistance and thermal properties. In addition, stainless steel has a
high surface gloss, a beautiful appearance, and is easier to maintain. It is
widely used in chemical, food, pharmaceutical and other fields.
3. Alloy steel: Alloy steel has a higher
content than carbon steel, and has higher strength and corrosion resistance. In
high temperature or high pressure environments, alloy steels include
chromium-molybdenum alloy steels, etc. This material is very suitable for use
in specific industrial occasions, such as the storage and transportation of
oil, natural gas, and liquefied gas.
Features of loose flanges
Loose flanges are a type of pipe connector
consisting of a loose sleeve, a flange, and a gasket. Its characteristics are
as follows:
1. Easy installation: The installation of
loose flanges does not require rotating and tightening the flange bolts. You
only need to install the loose sleeve and flange on the pipes at both ends, add
a gasket in the middle, and then use bolts to connect the two ends of the
flange to complete the installation. Compared with traditional flange
connections, this connection method is simpler and faster.
2. Good sealing: During the pipeline
connection process, the role of the gasket is to bear the role of sealing. The
gaskets used in loose flanges are usually made of rubber, PTFE and other
materials. They have good sealing properties, can effectively prevent medium
leakage, and ensure the safety and reliability of pipeline connections.
3. Strong pressure bearing capacity: Loose
flanges usually use flange connections, and their pressure bearing capacity is
equivalent to that of traditional flange connections. During the use of
pipelines, loose flanges can withstand higher pressures to ensure the stability
and safety of pipeline connections.
Application of loose flanges
Loose flanges are suitable for various
pipeline connections, especially in the chemical, petroleum, natural gas and
other industries. The specific application scenarios are as follows:
1. High temperature and high pressure
pipelines: In high temperature and high pressure environments, loose flanges
can ensure the sealing and stability of pipeline connections and ensure the
safety of pipeline operation.
2. Pipelines of corrosive media: In the
connection of corrosive media pipelines, loose flanges are often used for
anti-corrosion treatment of connections. The use of special materials and
coatings can effectively prevent the erosion and corrosion of the pipeline
connection by the medium.
3. Large-diameter pipeline connection: In
large-diameter pipeline connections, the use of traditional flange connections
requires a large number of bolts and manual installation, which is expensive
and time-consuming. The loose flange connection adopts a loose sleeve design,
which can greatly reduce the number of bolts and installation time, and improve
the efficiency and quality of pipeline connections.
Summary
In short, as an important pipeline
connector, the loose flange has the characteristics of easy installation, good
sealing, and strong pressure bearing capacity in practical applications.
Understanding the characteristics and applications of loose flanges helps us
find the right flange
supplier.