PTFE Flat Spiral O Ring Back Up Rings Chemical Resistant ISO9001 Certified

The backup ring is a flat, split, spiral or wave washer type accessory

Back-up Rings are flat, split, spiral or contoured washer type fittings used to protect an O-Ring seal from extrusion at higher pressures and temperatures. A Back-up Ring works by blocking or reducing the extrusion gap, thus preventing the o-ring from extruding.

Why Choose Us

Q : Are you trading company or factory ?

A : We are a factory ,so we can offer you Factory Price with High Quality.

Q : How long is your delivery?

A : For stock items ,we can ship them immediately after receive payment .

For other items,we will need 20 days for mass production.

    Jiangsu Kunyuan Rubber & Plastic Technology Co., Ltd. is a professional manufacturer of seals. The factory covers an area of 25,000 square meters. The products are made with automatic injection molding machines and inspected with automatic quality inspection facilities. We follow ERP system throughout the business process. The product quality matches the standards of Europe, the US and Japan. The company's products are used by China's leading construction machinery enterprises: SANY (Sany Heavy Industry) and XCMG who export their construction machinery worldwide. We are also the high-quality supplier of EATON, Danfoss, Caterpillar and Case New Holland. With competitive prices and premium quality assurance, we provide customers with perfect service experience.

     Meanwhile, Jiangsu Kunyuan Rubber & Plastic Technology Co., Ltd. is also a company who sets priorities on workplace health, safety and environmental protection for employees. The company is committed in creating the quality, environmental protection, safety, and hygiene management systems that match international standard to pave the way for sustainable operation.