LUOYANG SUNRUI SPECIAL EQUIPMENT CO., LTD.

Pipeline Safety Equipment工业管道安全卫士Consult Us

Pipeline Safety Equipment

  With nearly 40,000 m2 modern production plant for pipe fittings, automatic production line for bellows blank welding, multiple expansion joint assembly lines and 3,500 m2 clean workshop, the Company has an annual capacity of 30,000 sets of various types of metal bellows expansion joint, sleeve expansion joint, pipe support and other pipe fittings at an output value of nearly RMB 500 million.

  Material range: carbon steel, austenitic stainless steel,duplex stainless steel, titanium and titanium alloy, copper alloy, high nickel and nickel base alloy, etc..

  Pressure range: FV - 25MPa.

  Temperature range: -196℃ - 1300℃ .

  Designed fatigue life: 200 - 10,000 times.

  The Company focuses on quality system construction,has a perfect quality assurance system, and implements the quality management concept of whole staff, whole process, and whole service life, to win the trust of customers in the industry.

Metal Bellows Expansion Joint for Urban Heating Engineering
Being committed to the compensation safety, reliability, low energy consumption and economic operation of heating pipe network, the Company has successively developed several series of expansion joint products suitable for pipe laying and overhead pipelines according to the different requirements of heating expansion joint in different cities in China, and its multiple patent products have filled the gap in China. Product features: double protection, multiple seals, corrosion resistance, long life, and high safety. The expansion joint for directly-buried pipe network in coastal cities can run safely for more than 20 years. Product line: CSRW heating expansion joint series; YZM compensation directly-buried anti-corrosion expansion joint series; bellows expansion joint series with sleeve seal; and MZ disposable bellows expansion joint series Project performance: The products have been used in Beijing main heating pipelines for 30 years of safe operation, in Tianjin directly-buried heating pipelines and Taiyuan heating pipelines for more than 20 years of safe operation, and have been widely used in the heating pipelines in Zhengzhou, Harbin, Changchun, Baotou, Yinchuan, Yantai, Luoyang, Xuchang, Pingdingshan, Datong, Datong, and other large and medium-sized cities.
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Comprehensive Solution Service for Flexible Pipeline Compensation
The Company has carried out a series of researches on flexible safety compensation and integration technology of pipelines, with GB2, GC2, and GC3 pressure piping design qualifications. By comprehensively using selection technology of pipeline compensation expansion joint, pipeline stress analysis technology and dynamic characteristics simulation analysis technology, as well as considering the test verification and engineering application experience, the Company has provided customers with comprehensive solutions and formed flexible compensation design expert system for pipelines.
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Pipe Support
The filled PTFE sliding support is a new type of pipe support developed in 1993. With the advantages of low friction coefficient, wear resistance, large bearing capacity and strong adaptability of pipeline slope, it has been widely used in petroleum, chemical industry, electric power, heating power and other industries, winning the positive recognition and praise from the majority of users. The filled PTFE sliding support with heat preservation function, specially developed for the Taiyuan Heating Power Taigu Project which is a national key demonstrative project, can be used to control the pipe temperature within 0.1-0.2 ℃ /km, and reduce the heat loss and energy consumption of pipeline system for more than 5%. Product features: good heat insulation performance, low friction coefficient, good corrosion resistance and adjustable height. Product line: sliding support series for horizontal pipelines, sliding support series for vertical pipelines and sliding support series for elbow pipelines. Each series of the sliding support is further divided into axial sliding type, bidirectional sliding type, guiding sliding type and double guiding sliding type. Project performance: They are widely used in Beijing Heating Power, Luoyang Heating Power, Tianjin Heating Power, Taiyuan Heating Power and other heating pipeline projects, and are also used in Sinopec Nanchong Petrochemical, Sinopec Tianjin Petrochemical, Sinopec Lanzhou Petrochemical, Yan'an Refinery and other projects.
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Ship Pipelines
The Company has studied on a number of key technologies, to form the marine-use power plant steam inlet and outlet pipe, exhaust steam pipe, sea-water pipe, shafting cooling pipe and other series products. All of these can meet the requirements of ship pipeline compensation, vibration reduction, noise reduction and high reliability, so as to ensure the safety of ship pipeline. Product features: High comprehensive performance requirements, and high safety, etc. Product line: Titanium alloy series expansion joint, copper alloy series expansion joint, and vibration and noise reduction series flexible pipe Project performance: The products have been used in multiple types of ship pipelines.
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Electric Power Industry
The Company has carried out a variety of technical researches in electric power industry such as nuclear power, air cooling power plant, and high voltage power transmission and transformation system; and developed large diameter negative pressure expansion joint, high precision expansion joint for high voltage power transmission and transformation, expansion joint for high temperature gas cooled reactor system and other new products, to satisfy the safety needs of the industry. Product features: Large diameter negative pressure safety design, high precision reliability design, high safety, and large compensation value, etc.. Product line: Air cooling power plant expansion joint series; high voltage power transmission and transformation expansion joint series; and high temperature gas cooled reactor expansion joint series Project performance: The products are used in Hongyanhe Nuclear Power Plant, Daya Bay Nuclear Power Plant, Institute of Nuclear Energy Technology (INET) of Tsinghua University, Nuclear Power Institute of China, Pingao Electric, Datang Electric, Huayuan Taimeng and many other large scale production and research enterprises.
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Metal Bellows Expansion Joint for Coal Chemical Plant
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Metal Bellows Expansion Joint for Light Hydrocarbon Chemical Plant
For the development requirements of high temperature and high pressure chemical equipment for olefin cracking, the special technical research and product design have been carried out. Temperature field simulation analysis technology and thermo mechanical coupling analysis technology have been approved by foreign experts. Multiple patent technologies have filled the gap in China. Product features: Double layers structure with alarm and floating; equipped with coil blowing function; safe and highly reliable. Product line: High temperature cold wall series expansion joint with alarm and blowing device for hot wall pipes . Product performance: Shanghai Secco, CNPC Jinlin Branch, CNPC Guangdong Branch, Styrene plant of Anqing Petrochemical Company, Butadiene/Isobutylene plant of Shandong Yuhuang Chemical, JiangSu Sailboat Petrochemical, Yantai Wanhua Chemical Group, Shandong Jincheng Petrochemical Group, SP Chemicals, Tianchen Corporation China, Zhuhai BP Chemicals, Sinopec Shanghai Engineering Co., Ltd., Polypropylene plant in China Coal Mengda Energy, as well as Olefin mixing and dehydrogenation plant in Dongming Petroleum Qianhai Chemical.
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Metal Bellows Expansion Joint for Refinery Plant
In 1979, the expansion joints were provided for the key pipelines of FCC unit in Jiujiang Refinery Plant for the first time to successfully replace the imported products. After years of research, testing and engineering applications, the product has achieved the leading position in the high-end petrochemical industry. Product features: High temperature resistance, corrosion resistance, and high reliability. Its patent products such as selfsupporting bend pressure balanced expansion joint, compound straight pressure balanced expansion joint, have solved the problems of vibration reduction and compensation for flue gas turbine outlet pipelines, as well as the compensation for the pipe system to the reactor of catalytic cracking unit; The life of the expansion joint for gasoline adsorption and desulfurization device is more than 5 times higher than that of foreign similar products. Product line: PC high temperature hot wall expansion joint series; PC high temperature cold wall expansion joint series; PC hot air expansion joint series; and high temperature cold wall compound straight pressure balanced expansion joint series. Project performance: The products are used in FCC/DCC unit of various petrochemical refining enterprises, with an occupancy rate of above 80% in segment market of FCC unit and energy recovery system. Meanwhile, they have been sold to Khartoum Refinery in Sudan and deep processing FCC unit for oil refining in Kazakhstan.
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Sleeve Expansion Joints
The pressure self-tightening double-seal sleeve expansion joint has 2 invention patents and 3 utility model patents. The product has high sealing reliability and free of maintenance after installation due to the special sealing structure design. The disposable sleeve expansion joint is compact in structure, which is favorable for thermal insulation, and the on-site butt welding seam is easy to be constructed and tested. Diameter ranges from DN100 to DN1400, and the maximum pressure is 2.5MPa. Product features: pressure self-tightening, reliable sealing, maintenance-free, and high reliability Product line: Pressure self-tightening double-seal series sleeve expansion joint; disposable series sleeve expansion joint Project performance: The products are widely used in Beijing Huayuan Heating Power, Xinjiang Yining Heating Power, Taiyuan Heating Power, Luoyang Heating Power, Baotou Heating Power, and Yuzhou Heating Power.
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Metal bellows expansion joint
The Company produces unreinforced U-shaped, reinforced U-shaped and Ω-shaped bellows, whose materials are carbon steel, austenitic stainless steel, duplex stainless steel, titanium and titanium alloy, copper alloy, high nickel and nickel base alloy, etc. The size of the round expansion joint ranges from DN15 to DN4800mm, and the rectangular expansion joint can be of any size. Material range: carbon steel, austenitic stainless steel, duplex stainless steel, titanium and titanium alloy, copper alloy, high nickel and nickel base alloy, etc.. Pressure range: FV - 25MPa. Temperature range: -196℃ - 1300℃ . Various types of expansion joints can be designed and manufactured according to the requirements of the domestic and international standards as well as the design parameters provided by the users, so as to meet the use requirements of users under special conditions.
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  With the advantages of materials R&D and application technology in Luoyang Ship Material Research Institute, the products mainly focus on the safety, reliablility, energy conservation and environment protection of piping and equipment. The Company has Class A manufacturing license for pressure piping components, and can poduce various kinds of metal bellows expansion joints, sleeve expansion joints, pipe fittings, pipe bearings and other piping components. Its key technologies and military quality guarantee the pipeline compensation safety of major projects such as national warships, petrochemical plants, and central heating in key cities. More than 70 patented products have filled the gap in China, leading the development of expansion joint technology in China, and promoting the progress of the industry. There are two national key products: high corrosion resistant and heat resistant expansion joint for energy and chemical plant, and corrosion resistant alloy expansion joint for urban central heating. Its metal bellows expansion joint is a famous brand product in Henan Province.

  As chief editor for national standard GB/T 12777 General Specification for Metal Bellows Expansion Joints and national military standard GJB1996 General Specification for Piping Metal Bellows Expansion Joints.

  The Company has GB2, GC2, and GC3 pressure piping design qualifications, providing customers with comprehensive solutions. The Company has carried out a series of researches on flexible safety compensation and integration technology of piping, forming flexible compensation design expert system for piping.


中石协50强
知识产权重点保护企业
压力管道组件制造许可证
压力管道设计许可证
河南省优质产品
国家重点新产品

Production Capacity

With nearly 40,000 m2 modern production plant for pipe fittings, automatic production line for bellows blank welding, multiple expansion joint assembly lines and 3,500 m2 clean workshop, the Company has an annual capacity of 30,000 sets of various types of metal bellows expansion joint, sleeve expansion joint, pipe support and other pipe fittings at an output value of nearly RMB 500 million. Material range: carbon steel, austenitic stainless steel, duplex stainless steel, titanium and titanium alloy, copper alloy, high nickel and nickel base alloy, etc.. Pressure range: FV - 25MPa. Designed fatigue life: 200 - 10,000 times. The Company focuses on quality system construction, has a perfect quality assurance system, and implements the quality management concept of whole staff, whole process, and whole service life, to win the trust of customers in the industry.

Application in Petrochemical Field

Stepped into petrochemical field in 1979, and gradually promoted after its use in Jiangxi Jiujiang Refinery for the first time. Since then, the domestic expansion joint has entered the petrochemical field. Its new produ

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Application in Urban Central Heating Field

In 1984, it entered the field of urban central heating, and the market share in Beijing and Tianjin has reached more than 90%. Among them, the expansion joint of main pipe network in Beijing has been running safely for

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Application in Ship Pipelines Industry

As the earliest research institute on bellows expansion joint in China, the Company was awarded in 1978 National Science Conference Award for its research results, to ensure the safety of pipeline compensation and vibra

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Application in Electric Power Industry

The Company has good cooperation with Hongyanhe Nuclear Power Plant, Daya Bay Nuclear Power Plant, Institute of Nuclear Energy Technology (INET) of Tsinghua University and many other electric power generation and resear

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Coal Chemical Industry and Light Hydrocarbon Chemical Industry

  By considering the domestic major petrochemical and coal chemical engineering, the Company has revealed the safety and economy issues of expansion joint in the flare pipelines in energy and chemical industry, formed t

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