DIN/BS/JIS/API PN16/25/150LB Carbon Steel Flange Pipe Expansion Joint

Introduction

Rubber joints are also called rubber pipe soft joints, flexible rubber joints, rubber soft joints, flexible rubber joints, high-pressure rubber joints, rubber shock absorbers, compensators, etc. According to the connection mode, it is divided into loose flange type, fixed flange type and threaded type; According to the structure, it can be divided into 5 kinds: single sphere, double sphere, reducer, curved sphere and wind pressure coil. The tubular rubber part is composed of inner and outer layer rubber, cord fabric layer and steel ring, which is vulcanized and formed, and then combined with metal flange or loose sleeve of parallel joint. This product can reduce vibration and noise, and can compensate the thermal expansion and cold contraction caused by temperature change. It is widely used in various pipeline systems.

Equipment Structure

Rubber joint can also be called: flexible rubber joint, rubber soft connection, soft joint, flexible rubber joint, rubber expansion joint, shock throat, shock absorber, etc. it is a pipe connector with high elasticity, high air tightness, medium resistance and climate resistance.

The rubber joint is generally composed of inner rubber layer, fabric reinforcing layer (the reinforcing layer has multi-layer scraped nylon cord fabric), middle rubber layer, outer rubber layer, end reinforced metal ring or steel wire ring, which is combined with metal flange or parallel joint loose sleeve after high temperature and high pressure vulcanization. This product takes advantage of the high elasticity, high gas resistance, medium resistance, weather resistance and radiation resistance of rubber, which can reduce the vibration and noise of pipeline, and compensate the thermal expansion and cold contraction caused by temperature change.

According to different media, the rubber materials used are also different, including natural rubber, styrene butadiene rubber, butyl rubber, nitrile rubber, EPDM, neoprene, silicone rubber, fluororubber, etc. It has the functions of heat resistance, acid resistance, alkali resistance, corrosion resistance, wear resistance and oil resistance.

Application Area

Because the flexible rubber joint has good comprehensive performance, it is widely used in basic projects such as chemical industry, construction, water supply, drainage, petroleum, light and light industry, refrigeration, sanitation, plumbing, fire control, electric power and so on. According to different materials, it can be made into various varieties such as acid resistance, alkali resistance, corrosion resistance, oil resistance, high temperature resistance, radiation resistance, wear resistance and aging resistance, which can adapt to a variety of media and environment.

Dimensions

Standard

Feature

Yuanda Valve Group Co., Ltd., founded in 1994, is headquartered in Yincun, Longyao, Hebei, China, the hinterland of Bohai Economic Rim surrounding Beijing and Tianjin. With a registered capital of RMB 200 million, Yuanda currently has 8 subsidiaries, of which 6 are in China and 2 overseas. Among them, the core company, which covers an area of 540,000m2 and has more than 3500 employees, is the largest high,midium and low-pressure valve manufacturing base specializing in valve development, manufacturing, and sales in China.

Yuanda has obtained DNV·GL, ISO9001: 2015、ISO14001:2015、OHSAS18001:2007, API6D（6D-0759）, CE, KS, and EAC certifications. Its""trademark is evaluated as Famous Trademark of China and Famous Brand in Hebei Province, and the product series produced under"" is a trademark registered in Korea and products produced under this trademark enjoy a good reputation in both international and domestic markets. Yuanda has been named “Credit Management AA-Rating Enterprise” by the General Administration of Quality Supervision, Inspection and Quarantine and granted the title of “China Quality Trustworthy Enterprise” by China Entry and Exit Inspection and Quarantine Association. It is also a holder of Manufacture License of Special Equipment Level A and Casting Certificates Grades B, B1, and B2, and a member of China Valve Association council, a corporate member of China Foundry Association, and a provincial enterprise technology center in Hebei. Yuanda has been granted the power to carry out import and export operations on its own and is an approved supplier of PetroChina (CNPC) and Sinopec, Guodian, Huaneng, Huadian, Datang and China Power, and China Aluminum, CCESCC, Shougang, Wuhan Iron and Steel Company, and Hebei Iron and Steel Company.

Yuanda manufactures to standards including GB/JB(china), ANSI, API, AWWA, DIN, BS, JIS, EAC, NF and so on, and uses HT200, HT250, QT400, QT450, WCA, WCB, WCC, CF3, CF8, CF3M, CF8M, 1Cr5Mo, LCB, among others, to produce a great variety of valves including gate valves, globe valves, ball valves, butterfly valves, check valves, diaphragm valves, pressure-relief valves, plug valves, and traps, which are available in 12 main categories, 200 series and 4000 specs, totaling 120,000 tons a year. These products are widely used in all civil sectors covering petroleum, petrochemical, chemical, power generation, metallurgy, water system, pharmaceuticals, urban construction, and water supply and drainage.