**Product Specifications:**
- **Model No.:** Metric Size
- **Style:** Rubber Flat Gasket
- **Shape (for Gasket):** Ring Gasket
- **Function:** Hole Sealing
- **Color:** Pantone Code Available
- **Hardness:** Shore A 40–90
- **Workmanship:** Mold Vulcanization
- **Certificate:** TS16949, SGS, ROHS, REACH, NORSOK M-710
- **Tooling:** In-House and Free of Charge
- **Traceability:** ERP and Barcode System
- **Trademark:** XLONG
- **Transport Package:** Polybag and Carton
- **Specification:** Standard, Nonstandard, and Customized
- **Origin:** China
- **HS Code:** 40169310
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**Fashion Online High Elastic FKM Rubber Gasket**
We serve renowned clients such as Cummins, Emerson, Neway, Linde, and more. Our products are widely used in the automotive, chemical, electrical, electronics, hydraulics, pneumatics, machine building, petroleum, power generation (including nuclear), offshore, solar, oil & gas, and other industries.
**Key Features:**
1. **Material Quality:** We use compounds from top global suppliers like NBR, EPDM, VITON (FKM), HNBR, Silicone, etc. We also offer Pantone color codes and hardness ranging from 30 to 95 Shore A. Materials are sourced from reputable brands such as 3M, DuPont, Bayer, Daikin, and Dow Corning.
2. **Manufacturing Process:** Produced via mold vulcanization with ID from 0.5mm to 1000mm and C/S from 0.5mm to 20mm. For section vulcanization, ID ranges from 3mm to 20mm and C/S from 500mm to 6000mm.
3. **Sizes Available:** AS, JIS, BS, DIN, Metric, and custom sizes.
4. **Tooling:** In-house tool making is available at no charge for standard rubber rings. Mold lines can be 45° or 180°.
5. **Certifications:** ROHS, REACH, and NORSOK M-710 certified.
6. **Traceability:** Strict material tracking through ERP and barcode systems.
7. **Stock & MOQ:** Large inventory with minimum order quantities accepted.
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**Material Compatibility Table:**
| Materials & Temperature Ranges | Suitable With | Not Suitable With |
|-------------------------------|----------------|--------------------|
| **Nitrile (NBR)**
-40°C to 120°C
-40°F to 248°F | Petroleum Oils, Hydraulic Oils, Water | Brake Fluids, Ketones, Phosphate Esters, Strong Acids (H2S) | | **Hydrogenated Nitrile (HNBR)**
-40°C to 150°C
-40°F to 302°F | Petroleum Oils, H2S (10%), Water | Polar Solvents, Brake Fluids, Strong Acids | | **Ethylene Propylene (EPDM)**
-50°C to 150°C
-58°F to 302°F | Brake Fluids, Water/Hot Water, Steam | Mineral Oils, Ozone at High Temperatures | | **Fluoroelastomer (FKM)**
-20°C to 200°C
-4°F to 392°F | Petroleum Oils, Silicone Oils, Gasoline | Brake Fluids, Ammonia Gas, Steam | | **Perfluoroelastomer (FFKM)**
-20°C to 320°C
-4°F to 608°F | Most Media | Liquid Sodium & Potassium, Fluorinated Solvents & Refrigerants | | **Silicone (VMQ)**
-70°C to 220°C
-94°F to 428°F | Vegetable Oil, Water, Ozone | Acids & Alkalis, Hot Water & Steam (>120°C) | | **Neoprene (CR)**
-40°C to 120°C
-40°F to 248°F | Ammonia, Refrigerants, Ozone | Aromatic Hydrocarbons, Polar Solvents | | **PTFE**
-200°C to 280°C
-148°F to 536°F | Most Media | Fluorine, Molten Alkali Metals, Strong Oxidizing Agents | | **Polyurethane (PU)**
-40°C to 90°C
-40°F to 194°F | Most Petroleum Oils | Brake Fluids, Hot Water, Steam | | **PEEK**
-70°C to 260°C
-94°F to 500°F | Most Media | Hydrochloric, Nitric & Sulfuric Acids | --- **Features of Square Rings / Washer Rings / Gaskets:** - Interchangeable with O-ring sizes (Standard AS568A) - Same groove design as O-rings - Suitable for radial seals - Homogeneous material, no joints or laminations - Precisely formed edges - Tight tolerances on cross-section, I.D., and O.D. - Controlled surface smoothness, hardness, elasticity, toxicity, and texture - Economical and modern option for static applications - Available in multiple compounds --- **Why Choose XLONG?** Choose XLONG Seal — your reliable partner for high-quality gaskets. With a wide range of materials, certifications, and customization options, we ensure that your needs are met with precision and performance. **View Our Products:**   
-40°C to 120°C
-40°F to 248°F | Petroleum Oils, Hydraulic Oils, Water | Brake Fluids, Ketones, Phosphate Esters, Strong Acids (H2S) | | **Hydrogenated Nitrile (HNBR)**
-40°C to 150°C
-40°F to 302°F | Petroleum Oils, H2S (10%), Water | Polar Solvents, Brake Fluids, Strong Acids | | **Ethylene Propylene (EPDM)**
-50°C to 150°C
-58°F to 302°F | Brake Fluids, Water/Hot Water, Steam | Mineral Oils, Ozone at High Temperatures | | **Fluoroelastomer (FKM)**
-20°C to 200°C
-4°F to 392°F | Petroleum Oils, Silicone Oils, Gasoline | Brake Fluids, Ammonia Gas, Steam | | **Perfluoroelastomer (FFKM)**
-20°C to 320°C
-4°F to 608°F | Most Media | Liquid Sodium & Potassium, Fluorinated Solvents & Refrigerants | | **Silicone (VMQ)**
-70°C to 220°C
-94°F to 428°F | Vegetable Oil, Water, Ozone | Acids & Alkalis, Hot Water & Steam (>120°C) | | **Neoprene (CR)**
-40°C to 120°C
-40°F to 248°F | Ammonia, Refrigerants, Ozone | Aromatic Hydrocarbons, Polar Solvents | | **PTFE**
-200°C to 280°C
-148°F to 536°F | Most Media | Fluorine, Molten Alkali Metals, Strong Oxidizing Agents | | **Polyurethane (PU)**
-40°C to 90°C
-40°F to 194°F | Most Petroleum Oils | Brake Fluids, Hot Water, Steam | | **PEEK**
-70°C to 260°C
-94°F to 500°F | Most Media | Hydrochloric, Nitric & Sulfuric Acids | --- **Features of Square Rings / Washer Rings / Gaskets:** - Interchangeable with O-ring sizes (Standard AS568A) - Same groove design as O-rings - Suitable for radial seals - Homogeneous material, no joints or laminations - Precisely formed edges - Tight tolerances on cross-section, I.D., and O.D. - Controlled surface smoothness, hardness, elasticity, toxicity, and texture - Economical and modern option for static applications - Available in multiple compounds --- **Why Choose XLONG?** Choose XLONG Seal — your reliable partner for high-quality gaskets. With a wide range of materials, certifications, and customization options, we ensure that your needs are met with precision and performance. **View Our Products:**   
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