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Introduction to the characteristics of bellows

Introduction to the characteristics of bellows

After assembling the double-wall corrugated pipe, the test should be carried out under pressure. Plastic pipes are typically assembled by non-professional inspectors. Due to their light weight, flexibility, easy connection, and convenient disassembly, water tests are usually conducted only after assembly, while hydraulic tests are rarely performed. Once the pressure in an urban water supply network fluctuates, leaks can easily occur. Currently, many households often opt for concealed plumbing installations. However, if the water pipes are improperly concealed and subjected to a pressure test, the safety risks become even greater—leaks would require damaging the wall surface before they can be detected and repaired.

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Let’s talk about the issues involved in assembling double-wall corrugated pipes.

Let’s talk about the issues involved in assembling double-wall corrugated pipes.

The double-wall corrugated pipe is manufactured by extruding a corrugated surface and a smooth inner cavity made of HDPE simultaneously. So, after assembling the double-wall corrugated pipe, what are some areas that we tend to overlook easily? And how can we address these issues? Below, PVC-U double-wall corrugated pipes will explain several effective solutions for you.

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Let’s talk about the construction precautions and selection considerations for HDPE double-wall corrugated pipes.

Let’s talk about the construction precautions and selection considerations for HDPE double-wall corrugated pipes.

Enterprises producing steel-reinforced PE spiral corrugated pipes have found that HDPE double-wall corrugated pipes generally fall into two categories: one is single-wall corrugated pipe with a relatively large diameter, with a wall thickness ranging from 6 mm to 8 mm; the other is single-wall corrugated pipe with a slightly smaller diameter, with a wall thickness ranging from 26 mm to 30 mm.

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Introduce the construction design scheme for HDPE double-wall corrugated pipes.

Introduce the construction design scheme for HDPE double-wall corrugated pipes.

HDPE double-wall corrugated pipe is a new type of lightweight pipe made from polyethylene. Are you familiar with its characteristics? The manufacturer of HDPE double-wall corrugated pipes provides detailed information: On the one hand, it features a smooth inner surface that exerts minimal resistance to fluid flow; on the other hand, it is lightweight, allows for longer pipe sections (with fewer joints), and is easy to install and assemble.

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Bellows Selection and Installation Requirements

Bellows Selection and Installation Requirements

The corrugated pipe steel plate has been subjected to ultrasonic testing and was found to have delamination defects, which represent a significant quality and performance issue. Production and inspection must be carried out in strict accordance with specific quality requirements to prevent quality problems during both the manufacturing process and subsequent use. However, some pipe fittings are welded and do not require flanges. The formation of the corrugated pipe involves the creation of an iron-zinc alloy layer between the iron matrix and the outer pure zinc coating. During hot-dip galvanizing, this iron-zinc alloy layer is formed on the surface of the workpiece, ensuring strong bonding between the iron substrate and the pure zinc coating. Now, let’s take a closer look at the selection and installation requirements for corrugated pipes!

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What are bellows and how are they used?

What are bellows and how are they used?

The axial force exerted on the bellows is less than the frictional force, ensuring that the connection remains intact and the bellows do not slip. Tightening the bellows with a specialized wrench generates a remarkably strong clamping force. When using bellows, the preload on the connecting components is uniform. This preload creates substantial friction along the mating surfaces, which is why the bellows design is exceptionally simple yet boasts excellent mechanical performance, is readily disassemblable, highly resistant to fatigue, and remains securely fastened even under dynamic loading—making it a truly promising connection method. Such is the principle behind the bellows connection.

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YAXING

A specialized enterprise dedicated to the design and manufacture of desulfurization damper doors, non-metallic expansion joints, bellows, expansion compensators, stainless steel flexible metal hoses, dust collectors, conveyors, compensators, silencers, dampers, and stainless steel flexible metal hoses, as well as metallic and non-metallic corrugated expansion joints (expansion compensators).

Jiangsu Yaxing

Contact Us

Address: Qingdun Industrial Park, Hai'an City, Jiangsu Province

Phone: 86-513-88483622 ，86-513-88480666,

86-513-88480999

Fax: 86-513-88482423

Email: yx@ntyxbwg.com

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