Pressure pipe element metal corrugated expansion joint "special equipment manufacturing license"

Shanghai Songjiang absorber group limited official website to introduce you: pressure piping components - metal bellows "special equipment manufacturing license information, Songjiang group won the November 10, 2016 People's Republic of China special equipment issued by Shanghai Municipal Bureau of quality and technical supervision of the manufacturing license (pressure piping components - metal bellows).


金属波纹膨胀节采用奥氏体不锈钢材料或按用户要求的材料制造,具有优良的柔软性,耐蚀性,耐高温性(-235℃ ~ +450℃),耐高压性(.高为32MPa),在管路中可对任何方向进行连接,用以温度补偿和吸收振动、降低噪声、改变介质输送方向、消除管道间或管道与设备间的机械位移等,双法兰金属波纹软管对有位移、振动的各种泵、阀等的柔性接头尤为适用。
Metal corrugated expansion joint material:
Bellows body: for longer, all stainless steel 304 material is used to support all kinds of spectrometers, and the fake one is ten, the thickness is all thicker than the same industry standard.
Connecting flange: all flanges are made of orthodox forging material in Shanxi, both strength and sealing are the best materials. Do not compare the cast steel and steel plate flange on the market with no comparability.
Welding consumables: welding materials are higher than the level of the parent material standard, let the welding point more firmly.
Limit ear plate: ear boards are all made by increasing thickening dimensions, each model can be compared with the same industry's one type to one to one, which is called no contrast, no harm.
Limit screw: the screw is all 8.8 - grade high - strength zinc plating, which is * to ensure the comprehensive strength of the product, not to compare with the market level 4.8.
Production standard: Songjiang group passes the national pressure pipe production license requirement, TS number: TS2731B90-2020, and is strictly controlled according to the production requirement of TS pressure pipe, so that every corrugated compensator product of factory reaches * qualified.
Section of austenitic stainless steel materials or according to user requirements of materials manufacturing metal bellows expansion, with softness, excellent corrosion resistance, high temperature resistance (- 235 to +450 DEG C), high pressure (up to 32MPa), in the pipeline can be connected to any direction, with temperature compensation and vibration absorption and reduce the noise, changing the medium conveying direction, eliminate the mechanical displacement of the pipe or pipe and between devices, especially for the flexible joint with double flange corrugated metal hose on the displacement and vibration of pump and valve etc..
The metal corrugated expansion joint belongs to a compensation element. The effective expansion and deformation of bellows should be utilized to absorb the size changes caused by thermal expansion, shrinkage and other reasons, or to compensate for axial, lateral and angular displacement of pipelines, pipes and containers. It can also be used for noise reduction and vibration reduction.
The advantages of metal corrugated expansion joint:
1, the compensation can compensate the thermal expansion: multi direction, metal compensator is much better than that of only single compensation.
2, compensation for installation error: as the system error is unavoidable in the process of pipeline connection, the fiber compensator is better compensated for the installation error.
3, noise reduction and vibration reduction: fiber fabric and thermal insulation cotton body itself has the function of sound absorption and vibration isolation. It can effectively reduce the noise and vibration of boiler and fan system.
4, no reverse thrust: because the main material is fiber fabric, the inability to transfer. The use of fiber compensator can simplify the design, avoid the use of large support, and save a lot of material and labor.
5, good high temperature resistance, corrosion resistance: the selected fluoroplastics, organosilicon materials have good resistance to high temperature and corrosion resistance.
6, good sealing performance: a better production and assembly system, fiber compensator can guarantee no leakage.
7, light body, simple structure, convenient installation and maintenance.
8, the price is low, the quality is excellent.
Metal corrugated expansion joint use:
The metal corrugated expansion joint can compensate for axial, lateral and angular directions, and has the characteristics of no thrust, simplified bearing design, corrosion resistance, high temperature resistance, noise reduction and vibration absorption. It is especially suitable for hot air pipes and dust pipes.
2、带导流筒的补偿器,应注意使导流筒方向与介质流动方向*致(按补偿器的流向标志安装)。平面角向型补偿器的铰链转动平面应与    位移平面*致。
4、管系安装完毕后应立即拆除补偿器上用作安装运输保护的辅助定位构件及紧固件,并按设计要求将限位装置调到规定的位置。使管系    在环境条件下得以充分的补偿。
6、除设计要求预拉或“冷紧”的变形外,严.使用波纹管变形的方法来调整安装管道的偏差,以免影响补偿器的正常功能,否则会降低    其使用寿命和增加管系、设备及支撑构件的载荷。
9、 安装过程中不允许焊渣飞溅到波纹管表面,使波纹受到其它机械损.。
The installation method of the metal corrugated expansion joint and the matters needing attention:
1. Before installation, the model, specification, pipe and support configuration of corrugated stainless steel ripple compensator must be checked in accordance with the design requirements.
2. The compensator with a guide tube should be paid attention to the direction of the flow guide tube and the direction of the flow of the medium (according to the flow sign of the compensator). The plane of the hinge of a plane angle compensator should be in accordance with the plane of the displacement.
3. The compensator needs to be tightened, and the auxiliary component of its pre deformation should be dismantled after the stainless steel ripple compensator is preformed.
4, when the piping system is installed, the compensator should be removed immediately as an auxiliary positioning member and fastener for installation and transportation protection, and the limit device should be transferred to the specified location according to the design requirements. The pipe system can be fully compensated under environmental conditions.
5, it must be noted that the compensator does not absorb the torque, so the compensator is not allowed to be torsional when the stainless steel ripple compensator is installed.
6, in addition to the design requirements for pre drawing or "cold tight" deformation, it is strictly prohibited to use the method of bellows deformation to adjust the deviation of the installation pipeline, so as not to affect the normal function of the compensator, otherwise it will reduce its and increase the load of piping, equipment and supporting components.
7, the pipe is better for neutral. In the absence of other methods, the method of installing the equal length pipe and reinstalling the compensator can be ensured.
8, the insulation layer should be done on the outer protective sleeve of the compensator, and not directly on the corrugated pipe. No chlorine containing thermal insulation materials should be used.
9, it is not allowed to splash the slag to the surface of the bellows during the installation process, so that the ripples are damaged by other mechanical damage.
10, the support must comply with the design requirements, strictly prohibit the pressure test in the pipeline before the support is not installed, so as to prevent the compensator from pulling out.
11. All the active components of the stainless steel ripple compensator shall not be killed or restricted to the normal movement of the active parts of the external components.

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