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Hebei Metal Ripple Expansion Joint Product Introduction
Metal corrugated expansion jointHebei metal corrugated expansion joint manufacturer Puhui offers a full range of metal expansion joint models and supplies stainless steel corrugated expansion joints. Telephone. What are the models of metal expansion joints? Physical image display, product introduction.
Which is a good manufacturer of metal corrugated expansion joints in Hebei? Legitimate manufacturers, manufacturers with complete certificates, manufacturers with complete specifications and models, and manufacturers who can provide on-site design and installation guidance. Recommendation: Botou Puhui Electromechanical Equipment Factory, a legitimate manufacturer with over 20 years of experience in production and on-site construction, can provide various types of metal corrugated expansion joint products. A manufacturer capable of on-site survey, design, and installation guidance. Hebei Metal Ripple Expansion Joint, Metal Expansion Joint Manufacturer Botou Puhui Electromechanical Equipment Factory, specializes in manufacturing and supplying metal expansion joints, and is the manufacturer with the most complete specifications and models in Hebei region. Factory direct sales, direct shipment from the manufacturer, fast delivery, and price advantage.
Application of metal expansion jointMetal expansion joints are flexible structures installed in containers or pipelines to compensate for additional stresses caused by temperature differences and mechanical vibrations. We provide you with metal corrugated expansion joints, which are made of metal corrugated pipes. Suitable for pipelines with media such as water, steam, and flue gas.
Here are some of the most common pictures of metal corrugated expansion joints: (Various types of metal corrugated expansion joints have different appearances, but their functions are similar, yet each has its own characteristics.)
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Model of metal corrugated expansion joint
1. According to the compensation characteristics and product appearance, it can be divided into:
Hinge corrugated expansion joint PZN, internal and external pressure balanced corrugated expansion joint PNWH, metal hose, universal hinge corrugated expansion joint PWJ, axial type internal pressure corrugated expansion joint PZMW
Rectangular corrugated expansion joint PJX, flexible metal corrugated expansion joint, buried corrugated expansion joint PZM, unconstrained corrugated expansion joint PWY, axial external pressure corrugated expansion joint PZW, air duct fiber fabric expansion joint
Axial type compound pull rod corrugated expansion joint PFL, desulfurization expansion joint, groove stainless steel corrugated hose, large pull rod transverse corrugated expansion joint PDL, axial type compound corrugated expansion joint PZF, straight pipe pressure balance corrugated expansion joint PZH
2. Classified by work pressure level and model:
0.25MPa, 0.6MPa, 1.0MPa, 1.6MPa, 2.5MPa.
3. Divided by specifications and caliber:
DN32mm, DN40mm, DN50mm, DN65mm, DN80mm, DN100mm up to DN3000mm. There are multiple specifications of diameters, all of which correspond to the diameter of the pipeline. Our metal corrugated expansion joint has the same diameter as the pipeline, represented by the inner diameter.
The process flow that Puhui Metal Corrugated Expansion Joint insists on:
The first step is to conduct a stress test first;
The second step is to conduct an air tightness test.
Universal metal corrugated expansion jointBefore leaving the factory, a strict airtightness test is conducted. Our purpose of conducting the airtightness test is to check whether the welding gap meets the standard and to ensure the overall sealing, so as to ensure that the metal corrugated expansion joint is tight on the pipeline. In practical applications, not all metal corrugated expansion joints require a tightness test. The airtightness test is conducted after the pressure test. If the previous pressure test was an air pressure test, there is no need to separately conduct an air tightness test. The airtightness test is usually conducted at 1 time the design pressure, with a testing time of 12 minutes. Both ends are fixed and the pressure gradually increases to 1 time the design pressure. Check the sealing results.
There are two methods to check the sealing results:
1. Apply foaming agent to the welded area;
2. Immerse in water and check during pressure testing.
Universal metal corrugated expansion jointBefore leaving the factory, a strict airtightness test is conducted. Our purpose of conducting the airtightness test is to check whether the welding gap meets the standard and to ensure the overall sealing, so as to ensure that the metal corrugated expansion joint is tight on the pipeline. In practical applications, not all metal corrugated expansion joints require a tightness test. The airtightness test is conducted after the pressure test. If the previous pressure test was an air pressure test, there is no need to separately conduct an air tightness test. The airtightness test is usually conducted at 1 time the design pressure, with a testing time of 12 minutes. Both ends are fixed and the pressure gradually increases to 1 time the design pressure. Check the sealing results.
There are two methods to check the sealing results:
1. Apply foaming agent to the welded area;
2. Immerse in water and check during pressure testing.
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