Product Description

1. Flexible Double-Ball Type Rubber Expansion Joints Performance

        Relying on rubber’s special performances as long range elasticity, air impermeability, medium, climate and radiation resistance, the product is manufactures through combination of inclined polyester cord fabric with high strength and cold and hot stability and molding cross linking under high pressure and temperature, it has high density inside and can bear high pressure and has excellent elastic deformation. The product’s structural design in cross section arc height, curve length owns multi-functional displacement. Especially, it is suitable to be used where there are complex geologic conditions and large sedimentation range and frequent cold and hot changes that will damage pipes inside pipes. It can remove physical damage of displacement of pump, valve and pipes through rubber’s flexible gliding shift and distorting mechanical heat transfer and radiation. Rubber is a kind of low conduction material, so it can be an ideal product for medium in tests and never rusts either. Therefore, maintenance is not necessary in valid operation period.

2.Application Range

        Equipped with the excellent comprehensive performances of rubber expansion joint, the product can be used for lift and transportation of raw water and sewage, transportation of water supply, cooling cycle water of thermal power plant, condensate water of metallurgy industry and chemical materials of chemical industries, cooling and dilution of oil and chemical industries and flexible connection of other industries. It is also suitable to transport all grain and powder material and gas for its high abrasive resistance.

        In addition, special notifications are hereby conducted for design units and clients so as to ensure the project quality, please note to install anti-break stop device, if our products are designed to install close to pump exit nozzle and pipes’ corner. If your pipes need to be buried, please use our patent-buried protective devices. In a word, remark requirement for use, and we will provide satisfactory service to you.
 

Board of directors: what we need is not profit but to create more benefits for clients

Technical department: what we should do is to keep unceasing innovation till complete energy saving

Sales department: what we need is not sales but how to select types for users

Production department: what we need is not out but how to ensure the quality

After-sale department: what we do is to establish a technical team and collect equipment operation data

Quality check department: what we need is not check the data but measure whether the work meets standards or not

If you have special or other questions,please don't hesitate to contact us seeking for help
 

 Henan Liwei Industry Co., Ltd. (the former Zhengzhou Liwei Rubber Products Co., Ltd.) located at Shangjie District. Zhengzhou city is a manufacturer specializing in processing various steam, water, windpipe expansion and compensation joints, and a main base for producing rubber, metal and non-metallic pipe joints, It is also the appointed enterprise by the former chemical industry ministry, national construction ministry and general petrol chemical company member unit China Water Supply Association and power Equipment Network Union, and joints production unit recommended by China Water Association and National Metallurgy Ministry.

         Our Liwei brand flexible rubber joints have various heavy calibers, type and high quality in the county, The products series have won four patents and our company is named “Quality and Credit Unit” by Henan Province, Our product have become the first choices for national power design ,municipality and metallurgy units.

          At present, our product include four serial flexible rubber joints, three types, tens of standard and common specification, eight series of metal pipe loosing compensation joints and fourteen standard specifications and types, eleven types of standard and common specification products for serial wind pipe non-metal compensators. Our annual comprehensive production capacity can reach over forty thousand sets and we also process various pipe joint matching flat welding flanges (steel international/non-international standard). Our products have been sold in over thirty cities and autonomous regions, With China’s entry to the WTO; our products have been exported to foreign countries as Italy. Spain, Pakistan. Singapore and East European countries, etc, and the products have been become public famous brand products for design units and clients.

         Our company has been equipped with rich technical strength, excellent design and complete design and complete products test measures. We also own a set of strict management system and high-quality technicians, In***4; we have gained quality management and environment management authentication.

          Insisting on the rennet “Development Through Technology, Making More Friends, Creating Green Environment and Responsible for Future”, the company has been devoting itself to creating top products and well serving all clients around the world, Liwei brand products will be a red line between we and the clients for ever.