Product Description
Our premium black Fluorocarbon (FKM) rubber tubes are engineered for superior performance in the most demanding environments. Crafted from high-quality FKM compounds, these tubes exhibit exceptional resistance to a wide range of acids, alkalis, and aggressive chemicals, making them ideal for corrosive fluid transfer applications.
They are designed to withstand extreme temperatures, ranging from -20°C (-4°F) to 200°C (392°F), ensuring reliable operation across diverse industrial settings. In addition to their chemical and temperature resistance, these tubes offer excellent mechanical strength, abrasion resistance, and flexibility, ensuring long service life and ease of installation.
Available in various sizes and customizable lengths, our FKM rubber tubes are suitable for use in chemical processing, petrochemical, pharmaceutical, food and beverage, and other industries where durability and chemical compatibility are critical. They are also well-suited for applications such as hydraulic systems, pneumatic systems, and general industrial fluid conveyance. Trust our FKM tubes for dependable performance in the harshest conditions.
Should you require further information regarding our FKM hoses, please do not hesitate to contact us via email.
Ivy@brightrubberplastic.com
Company Profile
Material Composition and Chemical Resistance
The core of this product is FKM (fluoroelastomer), a synthetic rubber containing a high percentage of fluorine (typically 66-69% by weight). This chemical structure provides inherent resistance to a wide range of aggressive media. Based on our material testing, FKM hoses demonstrate excellent compatibility with:
Hydrocarbons, including fuels, lubricants, and aromatic solvents
Strong acids, including concentrated sulfuric acid and nitric acid
Oxidizing agents and organic acids
High-temperature steam and hot water
It is important to note that standard FKM has limitations. It is not recommended for use with low-molecular-weight ketones (such as acetone), esters, amines, or highly alkaline solutions. For applications involving these specific chemicals, we offer modified FKM formulations (such as base-resistant Type-4 or ETP variants) that can be discussed during the technical consultation phase.
Thermal and Mechanical Performance
FKM rubber hoses are rated for continuous operation at temperatures up to 204°C (400°F), with intermittent peaks to 260°C (500°F). At these temperatures, the material maintains its structural integrity and sealing force without significant degradation. Low-temperature flexibility is limited, with a typical TR-10 value around -8°C to -20°C for standard grades; low-temperature modified grades can extend this to -40°C.
Mechanically, FKM exhibits good abrasion resistance and low gas permeability. The material has a high density (approximately 1.8-2.0 g/cm³), which contributes to its barrier properties but also results in a heavier hose compared to nitrile or EPDM alternatives. Compression set resistance is acceptable for static sealing applications, though dynamic sealing applications should be evaluated on a case-by-case basis.
Manufacturing Process and Quality Control
Our production follows a controlled extrusion and curing process. Raw FKM compound is mixed with specific curatives (typically bisphenol or peroxide-based systems depending on the application) and extruded through precision dies to achieve the specified inner diameter, wall thickness, and outer diameter.
Key quality parameters monitored during production include:
Dimensional Tolerance: Inner diameter tolerance of ±0.3mm, wall thickness tolerance of ±0.2mm
Cure Verification: Rheometer testing on each batch to confirm proper cross-link density
Visual Inspection: Surface finish, absence of bubbles, blisters, or foreign inclusions
Functional Testing: Periodic hardness (Shore A 70-80), tensile strength (>10 MPa), and elongation at break (>150%) verification
Hoses are available in standard lengths or cut-to-length with various end fittings (barbed, flanged, or threaded) as specified by the customer.
Product Specifications
Standard FKM round hoses are produced in sizes ranging from 3mm to 150mm inner diameter. Wall thickness can be customized based on pressure requirements. The standard color is black, which provides UV resistance and is typical for industrial FKM compounds. Custom colors are available at higher MOQs due to compound changeover costs.
Pressure ratings vary by size and wall thickness. For example, a 25mm ID hose with 5mm wall thickness is typically rated for 1.5 MPa at 100°C, derated at higher temperatures per standard elastomer pressure-temperature curves.
Application Considerations
This hose is intended for:
Chemical transfer lines in processing plants
High-temperature fuel and oil lines
Steam and hot water service
Acid and alkali handling (with media compatibility verification)
Sealing and gasket applications requiring chemical resistance
We require customers to provide the specific media, temperature range, pressure, and duty cycle (continuous or intermittent) before order confirmation. Media compatibility charts are available, but actual service conditions should be validated through testing when operating near the material's limits.
Hot Tags: acid and alkali resistant black fluorine rubber round pipe, high temperature resistance and wear resistance round pipe, fluorine glue pipe, fkm rubber hose, china, manufacturers, suppliers, factory, customized, made in China
