Our PTFE expansion joints are made from the synthetic material Polytetrafluoroethylene, the non reactive material is widely used in pipelines within the chemical manufacturing industry, acting as a protective agent against corrosive substances. KOSGA’s molded PTFE expansion joints are specially to designed to protect pipes which come in contact with strong industrial and reactive materials.

The KOSGA Series PTFE & FEP Lined Expansion Joints are designed for tough, demanding, corrosive chemical applications such as chemical and petrochemical process facilities and highly corrosive industrial piping and pollution control systems. Use of the Series KOSGA expansion joints is especially prevalent in the paper industry, where their ability to resist corrosive attack at elevated temperature and pressure is unrivaled by other competitive metal or plastic expansion joints.

Solid-molded PTFE expansion joints are corrosion-resistant and made to withstand the high pressure and temperature in a compact, space-saving design. Standard sizes from 1” to 12” with two, three, or five convolutions; available in sizes up to 48”. KOSGA PTFE expansion joints can operate with temperatures from -300 F to 400 F from a full vacuum to 160 PSI depending on the type and number of convolutions.

Main Advantages:
1.Absorption of pipe-wall and fluid-borne noise
2.Reduction of system stress and strain
3.Isolation of mechanical vibration and motion
4.Superior “Flex Life” and strength
5.Tested force pound and spring rate tables
6.Coated flanges and factory set limit bolts
7.Chemical service capability at minimal cost
8.Elimination of electrolysis
9.Protection against start up and surge forces

Founded in 1979 and rising rapidly, it has professional level and mature technology in the field of wear-resistant rubber. It is our constant pursuit to rely on science and technology for development and continuously provide customers with satisfactory wear-resistant rubber lining products for mills. On the basis of introducing the international advanced technology for designing and manufacturing wear-resistant rubber for mills, KOSGA Has developed various kinds of AG, SAG and ball mill rubber linings which are suitable for all mill brands in the current market and have been certified by ISO 9001 Quality Management System, and have been widely used in many fields such as mining, metallurgy, chemical industry, power plant, cement etc. With first-class product quality and exquisite technical service, it has received unanimous praise from Customer.

In the process of development, company has continuously exchanged and cooperated with many domestic departments and institutions. Its design, production, maintenance, commissioning and engineering renovation capabilities have been rapidly improved and its scale has been expanding. Professional R&D institutions and technical teams make us the world’s first-class mill rubber lining company. Thanks to our high-quality products and excellent customer service, we have gained a global sales network and exported our products to North America, Europe, Africa, South America and other countries.

Quality is an essential in manufacturing. No matter how varied the requirements, it is imperative to manufacture products that meet customer’s needs and are of the highest quality. For over 40 years KOSGA has manufactured a diverse array of Wear resistant rubber mechanical parts. This experience shows the history of our constant challenge to ensure quality.

The manufacturing industry has undergone major transformation in the 21st Century. We provide quality by grasping the true nature of this change and responding to various market demands with sincerity and relentless effort. KOSGA remains dedicated to high quality in order to build a prosperous society and future.