High sealing performance achieved with a heart-shaped self-seal! Introducing a long-lasting cast iron butterfly valve.
The "C201R type" features a double eccentric (double off-center) design for the disk's drive axis, allowing the disk and seat to remain in non-contact until just before full closure, resulting in minimal wear on the seat and a long lifespan for this cast iron butterfly valve. The seat is designed with a centering feature on the contact surface, creating a self-sealing mechanism that generates contact pressure on the disk's sealing surface due to fluid pressure, enabling efficient sealing from vacuum to high pressure. Additionally, during maintenance, the seat can be easily replaced by simply removing the seat cover. 【Features】 ■ Long lifespan due to double off-center mechanism ■ High sealing performance with centering self-seal ■ Easy maintenance *For more details, please refer to the catalog (P11-P17) or feel free to contact us. (The English and Chinese versions of the catalog can be downloaded from the catalog page of the special website below.)
Inquire About This Product
basic information
【Specifications (Excerpt)】 <Main Component Materials> ■Body: FC200 ■Disk: FCD450 + Nickel Plating ■Sheet ・Synthetic Rubber Sheet: AB (NBR) ・Fluororesin Sheet: TF (PTFE + EPDM), CF (Carbon Fiber Reinforced PTFE + EPDM), CM (Carbon Fiber Reinforced PTFE + SUS304) ■Gland Packing: NBR, EPDM, FKM ■Stem: SUS420J2 *For more details, please refer to the catalog (P11-P17) or feel free to contact us. (The English and Chinese versions of the catalog can be downloaded from the catalog page of the special website mentioned above.)
Price range
Delivery Time
Applications/Examples of results
For more details, please refer to the catalog or feel free to contact us. (The English and Chinese versions of the catalog can be downloaded from the catalog page of the special website above.)
catalog（1）
Download All Catalogs
News about this product（1）
Company information
Since its founding in 1955, our company has made customer satisfaction (CS) — that is, "providing products that satisfy our customers" — the fundamental management policy. For over 60 years, we have supplied products such as diaphragm valves, ball valves, and butterfly valves tailored to our customers' needs. By providing these products across a wide range of industrial sectors, including pharmaceuticals, chemicals, semiconductors, and steel manufacturing, as well as in public sectors such as nuclear and thermal power generation, water supply and sewage, and waste treatment facilities, we take pride in contributing to the development of economic activities and the creation and maintenance of an environmentally sustainable society. Moving forward, we will continue to respond to our customers' requests and strive to be of service to society, with all employees making every effort. 【Main Areas of Service】 We provide a wide range of valves across various sectors, from industries such as pharmaceuticals, chemicals, semiconductors, and steel manufacturing to public sectors like nuclear and thermal power generation, water supply and sewage, and waste treatment facilities. ■ ISO 9001 and 14001 Certification Obtained *For more details, please download our company brochure or contact us.
![[Technical Information] Selecting the Appropriate Butterfly Valve with Various "Types of Rubber Sheets"](https://image.mono.ipros.com/public/product/image/b59/2000535503/IPROS32900803135730179864.jpeg?w=280&h=280)
