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ring Product List

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O-ring P standard (P number / P series)

O-ring P standard (P number / P series)

The O-ring cherry seal molds O-rings of various sizes, including P standards (JIS B2401), using a wide variety of materials.

The P standard, established by the JIS standard (JIS B2401) for dynamic, cylindrical surface fixing, and flat surface fixing applications, is the most widely used size series in Japan. Sakura Seal Co., Ltd. not only offers general-purpose materials based on the JIS standard but also provides various high-performance materials, including the "Floro Power Series" featuring Perfluoroelastomer (FFKM) at its peak, and the "Floro Up Series," characterized by low adhesion, low friction, low sticking, and low outgassing. We support appropriate O-ring selection in terms of both size and material.

  • Other machine elements
  • Hydraulic Equipment
  • Piping Materials

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O-ring V standard (V number / V series)

O-ring V standard (V number / V series)

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 JIS standards (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 based on JIS standards but also various high-performance materials in the "Floro Power Series," topped by Perfluoroelastomer (FFKM), and the "Floro Up Series," characterized by low adhesion, low friction, low sticking, and low outgassing.

  • Sealing
  • Other machine elements
  • Pipe Fittings

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O-ring S standard (S number/S series)

O-ring S standard (S number/S series)

The cherry blossom seal for O-rings is molded from various materials in various sizes, including S standards and others.

The S standard, which is set with a thin wire diameter for use in small spaces for cylindrical and flat surface fixation, is a widely utilized size series for these applications. Sakura Seal Co., Ltd. not only offers general-purpose materials based on JIS standards but also provides various high-performance materials such as the "Floro Power Series," which features Perfluoroelastomer (FFKM) at its peak, and the "Floro Up Series," characterized by low adhesion, low friction, low sticking, and low outgassing, thereby supporting appropriate O-ring selection in terms of both size and material.

  • Other machine elements
  • Piping Materials
  • Hydraulic Equipment

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O-ring JASO F404 standard (JASO number / JASO series)

O-ring JASO F404 standard (JASO number / JASO series)

The O-ring cherry seal molds O-rings of various sizes according to the JASO F404 standard and other specifications using a wide variety of materials.

The JASO F404 standard, established by the Society of Automotive Engineers, is a widely used size series for automotive applications, including for dynamic, cylindrical surface fixed, and flat surface fixed seals. Sakura Seal Co., Ltd. supports the appropriate selection of O-rings in terms of both size and material, offering a variety of high-performance materials, including the "Floro Power Series" featuring Perfluoroelastomer (FFKM) at its peak, as well as the "Floro Up Series," characterized by low adhesion, low friction, low sticking, and low outgassing, in addition to general-purpose materials based on JIS standards.

  • Engine parts
  • Fuel system parts
  • Other machine elements

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Perfluoro O-ring Fluoro Power FF (FFKM - Standard)

Perfluoro O-ring Fluoro Power FF (FFKM - Standard)

Standard type perfluoroelastomer material with O-ring cherry seal.

Made of perfluoroelastomer, it has extremely excellent chemical resistance and also excels in heat resistance and mechanical properties. Sakura Seal Co., Ltd. offers a wide range of O-rings in various sizes, from very small O-rings to large diameter rings, not only in accordance with general standard sizes based on JIS standards but also supports the appropriate selection of O-rings in terms of both material and size. * Various types of fluororubber, including perfluoro, are the materials that Sakura Seal Co., Ltd. specializes in the most. * We also accommodate shapes other than O-rings.

  • CVD Equipment
  • Etching Equipment
  • Sealing

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Perfluoro O-ring Fluoro Power FFW (FFKM - white)

Perfluoro O-ring Fluoro Power FFW (FFKM - white)

White type perfluoroelastomer material with O-ring cherry seal.

It is a white type of material made from perfluoroelastomer, which has extremely excellent chemical resistance and, due to the absence of carbon black as a filler, also excels in cleanliness and plasma resistance. Sakura Seal Co., Ltd. offers a wide range of O-rings, from very small to large diameter rings, not only in general standard sizes according to JIS standards but also supports the appropriate selection of O-rings in terms of both material and size. * Various types of fluororubber, including perfluoro, are the specialty of Sakura Seal Co., Ltd. * We also accommodate shapes other than O-rings.

  • CVD Equipment
  • Etching Equipment
  • Other machine elements

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O-ring Fluoro Power 3F90 (3-component FKM - pressure-resistant)

O-ring Fluoro Power 3F90 (3-component FKM - pressure-resistant)

High hardness type of ternary fluororubber material with O-ring cherry blossom seal.

This is a fluororubber (terpolymer) material with improved pressure resistance, featuring excellent chemical resistance and heat resistance, as well as resistance to strong acids and steam. It also excels in blister resistance (explosion resistance) and has passed the RGD test (ISO 23936-2 certification). Sakura Seal Co., Ltd. offers a wide variety of O-rings, from very small O-rings to large diameter rings, not only in standard sizes according to JIS standards but also in various sizes and materials, supporting appropriate O-ring selection in both material and size. * Various types of fluororubber are the specialty of Sakura Seal Co., Ltd. * We also accommodate shapes other than O-rings.

  • Other machine elements
  • Power Transmission Equipment
  • Piping Materials

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O-ring Fluoro Power DEB (Buna ETP - Standard)

O-ring Fluoro Power DEB (Buna ETP - Standard)

Standard type Bition ETP (FFKM-E) material with O-ring cherry seal.

The material is made of Byteon ETP (FFKM-E), which has excellent chemical resistance and is also resistant to polar solvents, strong acids, and strong alkalis. It is effective for cost reduction as a lower compatibility alternative to Perfluoro (FFKM) material. Sakura Seal Co., Ltd. offers a wide range of O-rings, from very small O-rings to large diameter rings, not only in general standard sizes according to JIS standards but also in various sizes, supporting the appropriate selection of O-rings in terms of both material and size. * Various types of fluororubber, including FFKM-E, are the specialty of Sakura Seal Co., Ltd. * We also accommodate shapes other than O-rings.

  • CVD Equipment
  • Etching Equipment
  • Sealing

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O-ring Fluoro Power DL (Cold-resistant FKM - Low-temperature resistant)

O-ring Fluoro Power DL (Cold-resistant FKM - Low-temperature resistant)

Cold-resistant FKM (low-temperature resistant) material with cherry blossom seal for O-rings.

The material is a fluororubber (type 3) with improved cold resistance, possessing excellent low-temperature characteristics, as well as chemical resistance and steam resistance suitable for use in strong acids. Sakura Seal Co., Ltd. offers a wide range of O-rings, from extremely small O-rings to large diameter rings, in various sizes and specifications according to JIS standards, and we support the appropriate selection of O-rings in terms of both material and size. * Various types of fluororubber, including cold-resistant FKM, are our specialty at Sakura Seal Co., Ltd. * We also accommodate shapes other than O-rings.

  • Other machine elements
  • Piping Materials
  • Other physicochemical equipment

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O-ring Fluoro Power DD (Conductive FKM - Antistatic)

O-ring Fluoro Power DD (Conductive FKM - Antistatic)

Conductive FKM (static electricity prevention) material with cherry blossom seal of O-ring.

Conductive fluororubber (tertiary type) material prevents the accumulation of static electricity and inhibits charging. It also excels in heat resistance and cold resistance, and is equipped with chemical resistance and steam resistance, making it suitable for use with strong acids. Sakura Seal Co., Ltd. offers a wide variety of O-rings, ranging from very small O-rings to large diameter rings, in both standard sizes according to JIS standards and custom sizes. We support the appropriate selection of O-rings in terms of both material and size. * Conductive FKM and various types of fluororubber are the materials that Sakura Seal Co., Ltd. specializes in the most. * We also accommodate shapes other than O-rings.

  • Other anti-static devices
  • Piping Materials
  • Other machine elements

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O-ring Fluoro Power FQ (FVMQ - Low Temperature Resistant)

O-ring Fluoro Power FQ (FVMQ - Low Temperature Resistant)

Full fluorosilicone (FVMQ) material with cherry blossom seal of O-ring

Made of fluorosilicone (FVMQ), it has excellent cold resistance and also possesses oil resistance and alcohol resistance. Sakura Seal Co., Ltd. offers a wide variety of O-rings, ranging from very small O-rings to large diameter rings, in addition to the standard sizes according to JIS standards. We will support you in selecting the appropriate O-ring in terms of both material and size. * We also accommodate shapes other than O-rings.

  • Other machine elements
  • Fuel system parts
  • Piping Materials

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O-ring ISO standard (ISO number / ISO series)

O-ring ISO standard (ISO number / ISO series)

The O-ring cherry seal molds O-rings of various sizes according to ISO standards (International Organization for Standardization) using a wide variety of materials.

The ISO standards established by the International Organization for Standardization are primarily utilized outside of Japan. Sakura Seal Co., Ltd. produces various high-performance materials, including the most in-demand NBR-70-1 (1A) and, as needed, the Perfluoroelastomer (FFKM) at the top of the range, known as the "Fluoro Power Series," as well as the "Fluoro Up Series," characterized by low adhesion, low friction, low sticking, and low outgassing. We support the appropriate selection of O-rings in terms of both size and material.

  • Other machine elements
  • Hydraulic Equipment
  • Piping Materials

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O-ring size standard (size)

O-ring size standard (size)

The O-ring cherry seal incorporates not only JIS standard sizes but also intermediate, extended, and derived sizes into the standards, and is molded in a variety of materials.

We manufacture and sell a wide variety of materials with various characteristics of Sakura seals, ranging from tiny micro O-rings to large-diameter extra-large O-rings. In addition to sizes based on the Japanese Industrial Standards (JIS B2401), we offer a range of sizes subdivided by various industries and support appropriate size selection along with groove design.

  • Other machine elements
  • CVD Equipment
  • Rubber

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O-ring NBR-70-1 (Type A / Nitrile Rubber)

O-ring NBR-70-1 (Type A / Nitrile Rubber)

The O-ring cherry seal is molded from various materials including NBR-70-1 (Type A/Nitrile rubber) and comes in a wide range of sizes.

It is the most versatile material made of nitrile rubber. It has oil resistance and abrasion resistance, but it is inferior in weather resistance. Before JIS B2401:2012 defined it as NBR-70-1, it was referred to as Type A (old JIS standard = JIS B2401:2005). Sakura Seal Co., Ltd. offers a wide range of O-rings, from very small O-rings to large diameter rings, in addition to the general standard sizes according to JIS standards, and we support the appropriate selection of O-rings in terms of both material and size. * We also accommodate shapes other than O-rings.

  • Piping Materials
  • Hydraulic Equipment
  • Other machine elements

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O-ring NBR-90 (Type B / Nitrile Rubber)

O-ring NBR-90 (Type B / Nitrile Rubber)

The O-ring cherry seal is molded from various materials including NBR-90 (Type B/Nitrile rubber) and comes in a wide range of sizes.

It is made of nitrile rubber, which has high hardness and excellent pressure resistance. It has oil resistance and abrasion resistance, but is inferior in weather resistance. Before JIS B2401:2012 designated it as NBR-90, it was referred to as Type B (old JIS standard = JIS B2401:2005). Sakura Seal Co., Ltd. offers a wide variety of O-rings, ranging from very small O-rings to large diameter rings, in addition to the general standard sizes according to JIS standards, and we support the appropriate selection of O-rings in terms of both material and size. * We also accommodate shapes other than O-rings.

  • Hydraulic Equipment
  • Piping Materials
  • Other machine elements

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