Product Introduction

PTFE lined rubber fitting is a specially constructed pipe connection lined with a layer of polytetrafluoroethylene (PTFE) material inside the rubber joint. PTFE is known for its excellent corrosion resistance, high temperature resistance, low coefficient of friction and non-adhesion, and is widely used in piping systems in chemical, pharmaceutical, food and other industries.

Product Features

1. Excellent corrosion resistance
PTFE-lined fittings are lined with polytetrafluoroethylene (PTFE), which is known for its excellent chemical resistance. PTFE is resistant to almost all known chemicals, including strong acids, bases, solvents, and more. In chemical plants, sewage treatment plants and other environments, pipelines often need to transport corrosive substances, and traditional metal pipes or rubber materials are easy to corrode, resulting in potential safety hazards such as leaks and pipe bursts. The PTFE lining layer lined with PTFE fittings effectively blocks corrosive substances and prolongs the service life of the pipe.
2. Excellent high temperature resistance
In addition to corrosion resistance, PTFE-lined fittings offer excellent resistance to high temperatures. PTFE has a high melting point of 327°C and remains stable even at high temperatures. In many industrial scenarios, the temperature of the medium conveyed in the pipeline is extremely high, and ordinary rubber joints are prone to aging, softening and even melting in high temperature environments, while PTFE-lined joints can work normally in extreme temperatures.

3. Excellent aging resistance and weather resistance
Industrial production is often accompanied by high frequency pressure changes and external environmental erosion, which will accelerate the aging of rubber materials. In contrast, PTFE-lined fittings are not only resistant to chemicals and high temperatures, but also highly resistant to weathering and aging. Even if it is used outdoors with strong ultraviolet rays, or when it is soaked in oil, acid and alkali solutions for a long time, its service life is far beyond that of ordinary rubber joints.
4. Good flexibility and compensating ability
Despite being lined with rigid PTFE, PTFE-lined fittings retain excellent flexibility. It is able to withstand axial, lateral and angular displacements in the pipe, effectively absorbing the expansion and contraction of the pipe due to temperature changes or installation errors. Because of this, PTFE-lined fittings not only protect the pipes, but also increase the safety of the system.

Product parameters

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Product application field

1. Chemical industry
In chemical production, many reaction processes produce highly corrosive gases or liquids. If these substances are transported through ordinary pipelines, they can quickly corrode pipelines, leading to major accidents. PTFE-lined fittings can effectively avoid this problem, which not only extends the life of the equipment, but also reduces maintenance costs.
2. Oil and gas
The transportation of media in the oil and gas industry requires pipelines to have strong resistance to high temperature and chemical corrosion, especially in special environments such as deep sea and offshore oil fields. PTFE-lined fittings exhibit excellent corrosion and high pressure resistance in such harsh environments.
3. Pharmaceutical and food industry
The pharmaceutical and food industries have extremely strict hygienic requirements for piping materials, which must not come into contact with any contaminants during transportation. PTFE-lined fittings have excellent anti-adhesion properties, and PTFE is inherently highly inert and virtually does not react with any substances, ensuring a pure and hygienic medium.
4. Power and environmental protection industry
In thermal power plants and environmental protection equipment, it is often necessary to deal with high temperatures, high pressures and corrosive gases or liquids, and PTFE-lined fittings can effectively meet these challenges. In the environmental protection industry, this kind of corrosion-resistant joint is also needed in the waste gas and waste liquid treatment system to ensure the normal operation of the equipment.

Different types of rubber joints

PTFE lined joint Food grade rubber joint Concentric reducing rubber joint

Eccentric reducing rubber joint Union threaded rubber joint End face fully sealed rubber joint

Inventory display

Special product customization process

1. Provide drawings
2. Customer confirmation
3. The price quoted includes freight
4. Provide PL
5. Payment has been received, arrange shipment

Our service

1. Our products are of good quality
2. Our price is competitive
3. We accept small order quantity and provide OEM service
4. We have professional technicians 24 hours online to serve you
5. We have many years of export experience

The company adheres to the business philosophy of "customer satisfaction is our first duty, all employees are responsible for creating quality, continuous improvement sets new heights, honest service builds reputation", and wholeheartedly provides high-quality products and professional services to new and old customers.

The factory mainly produces rubber expansion joints, duckbill check valves, dismantling joint, bellow expansion joints, compensators, repair clamp, 02S404 national standard waterproof casings, gate valves ,butterfly valves etc; and all products have passed ISO 9001:2015 quality management system certification; adopting national and industry standards, advanced manufacturing technology, strong R&D and manufacturing capabilities, they are widely used in water supply, drainage, electricity, chemical industry, gas, metallurgy, urban construction and environmental protection and other pipeline industries.