The O-ring cherry seal molds O-rings of various sizes, including V standards (JIS B2401), using a wide variety of materials.
The V standard established for vacuum flanges according to the JIS standard (JIS B2401) is a size series widely used in the vacuum equipment industry, alongside the gaskets from the old JIS standard (JIS B2290). Sakura Seal Co., Ltd. supports the appropriate selection of O-rings in terms of both size and material, offering not only general-purpose materials according to JIS standards but also various high-performance materials such as the "Floro Power Series" topped with Perfluoroelastomer (FFKM), and the "Floro Up Series," characterized by low adhesion, low friction, low sticking, and low outgassing.
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basic information
The V specification is one of the O-ring size standards established by the Japanese Industrial Standards (JIS). It is used as an O-ring size corresponding to the vacuum flange standard JIS B2290 and is widely utilized in industries such as oil and pneumatic pressure.
Price information
Prices may vary depending on the material and quantity, so please feel free to contact us.
Delivery Time
P1
※In principle, stock items are available for immediate delivery, but the delivery time may vary depending on the material and quantity.
Applications/Examples of results
O-ring (for vacuum flange). Packing, gasket.
Line up（34）
| Model number | overview |
|---|---|
| NBR-70-1 (1A) | The most versatile material made of nitrile rubber, featuring oil resistance and abrasion resistance. Type A (old JIS standard = JIS B2401:2005). Hardness A70±5. Black. Temperature -30 to 100℃. |
| NBR-90 (1B) | A material made of nitrile rubber, which has oil resistance, abrasion resistance, and excellent pressure resistance. Type B (old JIS standard = JIS B2401:2005). Hardness A90±5. Black. Temperature -20 to 100℃. |
| NBR-70-2 (2A) | A material made of nitrile rubber, which excels in oil resistance and can also be used with fuel oil. Type A (old JIS standard = JIS B2401:2005). Hardness A70±5. Black. Temperature -20 to 100℃. |
| FKM-70 (4D) | A material made of fluorine rubber (two-component), which excels in heat resistance, chemical resistance, and oil resistance. Type D (old JIS standard = JIS B2401:2005). Hardness A70±5. Black. Temperature -20 to 230℃. |
| FKM-90 | A material made of fluorine rubber (two-component), which excels in heat resistance, chemical resistance, oil resistance, and pressure resistance. Hardness A90±5. Black. Temperature -10 to 230℃. |
| VMQ-70 (4C) | A material made of silicone rubber, which excels in heat resistance, cold resistance, and weather resistance. Type C (old JIS standard = JIS B2401:2005). Hardness A70±5. Red. Temperature -50 to 200℃. |
| VMQ-50 | A material made of silicone rubber, which excels in heat resistance, cold resistance, and weather resistance. Hardness A50±5. Translucent color. Temperature -50 to 200℃. |
| EPDM-70 | A material made of ethylene propylene rubber, which excels in water resistance, chemical resistance, and cold resistance. Hardness A70±5. Black. Temperature -40 to 130℃. |
| CR-70 | A material made of chloroprene rubber, which has oil resistance and weather resistance. Hardness A70±5. Black. Temperature -30 to 100℃. |
| U-70 | A material made of urethane rubber, which has oil resistance and excellent pressure resistance. Hardness A70±5. Red. Temperature 0 to 100℃. |
| HNBR-70 | A material made of hydrogenated nitrile rubber, which has heat resistance, weather resistance, and excels in oil resistance and pressure resistance. Hardness A70±5. Black. Temperature -30 to 150℃. |
| PTFE | A material made of fluororesin, which excels in heat resistance, chemical resistance, and surface lubrication, but its performance as a gasket is inferior to rubber. Teflon. White. |
| Fluoro Power FF | A standard material made of perfluoroelastomer, which has extremely excellent chemical resistance and also excels in heat resistance. Hardness A80±5. Black. Temperature 0 to 230℃. |
| Fluoro Power FFW | A white material made of perfluoroelastomer, which has extremely excellent chemical resistance and also excels in heat resistance. Hardness A75±5. White. Temperature 0 to 230℃. |
| Fluoro Power FFS | A heat-resistant material made of perfluoroelastomer, which combines extremely excellent heat resistance and chemical resistance. Hardness A75±5. Black. Temperature 0 to 330℃. |
| Fluoro Power FFN | A heat-resistant non-filler material made of perfluoroelastomer, which has extremely excellent heat resistance and chemical resistance. Non-carbon, non-metal. Hardness A70±5. Gray. Temperature 0 to 300℃. |
| Fluoro Power FFHW | A heat-resistant white material made of perfluoroelastomer, which has excellent heat resistance and chemical resistance. Hardness A75±5. White. Temperature 0 to 280℃. |
| Fluoro Power FFH90 | A heat-resistant pressure-resistant material made of perfluoroelastomer, which combines excellent heat resistance and chemical resistance, and also excels in pressure resistance. Hardness A90±5. Black. Temperature 0 to 280℃. |
| Fluoro Power 3F | A standard material made of three-component fluorine rubber, which excels in heat resistance and chemical resistance, and can also be used with steam and strong acids. Hardness A70±5. Black. Temperature -10 to 200℃. |
| Fluoro Power 3FW | A white material made of three-component fluorine rubber, which excels in heat resistance and chemical resistance, and can also be used with steam and strong acids. Hardness A70±5. White. Temperature -10 to 200℃. |
| Fluoro Power 3FH | A heat-resistant material made of three-component fluorine rubber, which has excellent heat resistance and chemical resistance, and can also be used with steam and strong acids. Hardness A75±5. Black. Temperature 0 to 250℃. |
| Fluoro Power 3F90 | A pressure-resistant material made of three-component fluorine rubber, which excels in heat resistance, pressure resistance, and chemical resistance, and can also be used with steam and strong acids. Hardness A90±5. Black. Temperature 0 to 200℃. |
| Fluoro Power DL | A cold-resistant material made of three-component fluorine rubber, which excels in heat resistance, cold resistance, and chemical resistance, and can also be used with steam and strong acids. Hardness A70±5. Black. Temperature -35 to 200℃. |
| Fluoro Power DD | A conductive material made of three-component fluorine rubber, which excels in heat resistance, cold resistance, and chemical resistance, and can also be used with steam and strong acids. Anti-static effect. Hardness A80±5. Black. Temperature -35 to 200℃. |
| Fluoro Power DEB | A standard material made of Viton ETP, which has excellent chemical resistance and can be used with strong alkalis, strong acids, and polar solvents. Hardness A75±5. Black. Temperature 0 to 200℃. |
| Fluoro Power DEW | A white material made of Viton ETP, which has excellent chemical resistance and can be used with strong alkalis, strong acids, and polar solvents. Hardness A70±5. White. Temperature 0 to 180℃. |
| Fluoro Power AF | A standard material made of Aflas, which has excellent chemical resistance, particularly excellent amine resistance, and can also be used with strong alkalis and strong acids. Radiation resistance. Hardness A70±5. Black. Temperature 0 to 200℃. |
| Fluoro Power AF90 | A pressure-resistant material made of Aflas, which has excellent chemical resistance, particularly excellent amine resistance, and can also be used with strong alkalis and strong acids. Radiation resistance. Hardness A90±5. Black. Temperature 0 to 200℃. |
| Fluoro Power FQ | A material made of fluorosilicone, which has extremely excellent cold resistance and can also be used with fuel oil due to its excellent oil resistance. Hardness A70±5. Blue. Temperature -70 to 200℃. |
| Fluoro Power DPR | A special material that combines fluororesin and fluorine rubber, which has excellent plasma resistance without fillers while keeping the price low. Hardness A65±5. Black. Temperature 0 to 200℃. |
| Fluoro Up D | A special material made of fluorine rubber, which excels in heat resistance, chemical resistance, low adhesion, low outgassing, and high vacuum resistance. Hardness A70±5. Black. Temperature -20 to 230℃. |
| Fluoro Up K | A special material made of fluorine rubber, which excels in heat resistance, chemical resistance, low adhesion, and low friction. Hardness A70±5. Black. Temperature 0 to 230℃. |
| Fluoro Up S | A special material made of fluorine rubber, which excels in heat resistance, chemical resistance, low adhesion, low friction, low sticking, and low outgassing. Hardness A70±5. Black. Temperature 0 to 230℃. |
| Fluoro Up V | A special material made of fluorine rubber, which excels in heat resistance, chemical resistance, low adhesion, low friction, and low sticking, and also excels in low outgassing and high vacuum resistance. Hardness A75±5. Black. Temperature -20 to 250℃. |
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Company information
Sakura Seal Co., Ltd. is a seal product manufacturer that specializes in the production and sale of various sealing products, primarily O-rings, oil seals, and gaskets. We are particularly skilled in molded products made from fluororubber, and we offer a wide range of high-performance materials with special properties, including not only general-purpose FKM materials but also FFKM materials. With our deep knowledge of various sealing products, we maintain a stock of over 20,000 types, even within Tokyo, and strive to remain an organization that provides high convenience for industries and society.