The Hygienic BS 4825 Ferrule is primarily manufactured from 316L stainless steel (1.4404) for applications requiring good corrosion resistance, mechanical strength, and hygienic performance. A 304 stainless steel option is also available for applications where the material requirements are less demanding.
Designed according to BS 4825 Part 3, the ferrule is available in sizes from 1/2" to 8". Its precision-machined sealing face and smooth internal surface help reduce product retention and support CIP/SIP cleaning procedures.
The AVM ferrule follows the dimensional requirements associated with BS 4825 Part 3 hygienic ferrules. It is designed for use with compatible sanitary clamp connections, allowing process equipment and pipeline sections to be connected and disconnected without cutting or rewelding the pipe.
This makes the connection suitable for systems where regular inspection, cleaning, component replacement, or equipment maintenance is required.
316L stainless steel / 1.4404 is the standard material for applications requiring higher corrosion resistance and hygienic performance. It is commonly selected for pharmaceutical, biotechnology, dairy, food, and high-purity process systems.
304 stainless steel is available as an alternative for suitable applications where the process medium and environmental conditions do not require the additional corrosion resistance of 316L.
Material selection should be based on the process medium, cleaning chemicals, operating temperature, and applicable project requirements.
The Hygienic BS 4825 Ferrule uses a sanitary clamp connection that works with a compatible gasket and clamp. This configuration allows the connection to be assembled and disassembled relatively quickly compared with permanent welded connections.
For correct sealing, the ferrule, gasket, and clamp should be selected as a compatible set with matching dimensions.
The internal surface condition of a sanitary ferrule directly affects product retention and cleaning performance. AVM BS 4825 Ferrule uses a smooth internal surface with a standard finish of Ra ≤ 0.8 μm.
The smooth bore reduces areas where process media can accumulate and supports more effective cleaning and drainage. The ferrule can be incorporated into sanitary piping systems using CIP and SIP procedures, provided that the complete assembly and its sealing components are suitable for the specified cleaning and sterilization conditions.
For high-purity applications, buyers can specify the required surface finish and documentation before production.
The AVM Hygienic BS 4825 Ferrule is designed for sanitary processing systems where hygienic construction, material compatibility, surface condition, and cleanability are important. Product configurations can be selected according to requirements associated with 3-A Sanitary Standards, EHEDG hygienic design principles, and FDA food-contact material requirements.
The applicable compliance requirements depend on the stainless steel grade, surface finish, gasket material, and complete connection configuration. AVM can confirm the applicable documentation according to the specific product and project requirements.
For food and dairy processing applications, the ferrule can be specified according to applicable 3-A sanitary requirements, with consideration given to smooth product-contact surfaces, cleanability, and hygienic connection design.
The ferrule can be incorporated into piping systems designed around EHEDG hygienic design principles, particularly for applications where low product retention, effective cleaning, and hygienic process conditions are required.
For food and beverage applications involving product contact, suitable material and sealing configurations can be selected according to applicable FDA requirements. The specific FDA documentation should be confirmed according to the material and gasket configuration supplied.
| Item | Specification |
| Product | Hygienic BS 4825 Ferrule |
| Standard | BS 4825 Part 3 |
| Standard Material | Stainless Steel 316L / 1.4404 |
| Optional Material | Stainless Steel 304 |
| Size Range | 1/2" – 8" |
| Surface Finish | Ra ≤ 0.8 μm |
| Connection Type | Clamp Ferrule |
| Sealing Method | Compatible Sanitary Gasket + Clamp |
| Cleaning | CIP/SIP Compatible |
| Hygienic Requirements | 3-A / EHEDG / FDA Applicable Configuration |
| Application | Hygienic & High-Purity Piping Systems |
The following dimensions cover common ferrule sizes supplied for sanitary piping applications. Buyers should confirm the required tube OD and connection dimensions before ordering.
| Tube OD | Ferrule Length | Flange OD |
| 1/2" (12.7 mm) | 21.5 mm | 25.4 mm |
| 1" (25.4 mm) | 21.5 mm | 50.5 mm |
| 2" (50.8 mm) | 21.5 mm | 64.0 mm |
| 3" (76.2 mm) | 21.5 mm | 91.0 mm |
| 4" (101.6 mm) | 21.5 mm | 119.0 mm |
| 6" (152.4 mm) | 28 mm | 167.0 mm |
The ferrule can be used in sanitary process lines for liquid transfer, equipment connections, and clean process systems. Its clamp configuration also allows connected components to be removed for inspection and maintenance.
Typical applications include beverage processing, liquid food production, ingredient transfer, and sanitary utility systems where corrosion resistance and cleanable pipe connections are required.
316L stainless steel ferrules are suitable for milk, cream, yogurt, and other dairy processing systems where hygienic connections and frequent cleaning are part of normal production.
The Hygienic BS 4825 Ferrule can be installed in sanitary brewing and beverage equipment, including piping connections between tanks, pumps, valves, and other process components.
For high-purity liquid systems, the smooth internal surface and sanitary clamp connection help create a cleanable piping arrangement. The final material, surface finish, gasket, and cleaning procedure should be selected according to the process specification.
The ferrule must match the actual tube outside diameter and applicable BS 4825 dimensions. Nominal pipe size alone should not be used when ordering replacement components.
316L is generally preferred for demanding sanitary, pharmaceutical, biotechnology, dairy, and corrosion-sensitive applications. 304 can be considered when its corrosion resistance is sufficient for the process environment.
A standard Ra ≤ 0.8 μm finish is suitable for many sanitary applications. Projects with stricter cleanliness requirements can specify a smoother surface finish where applicable.
A sanitary ferrule requires a compatible gasket and clamp to form the complete connection. The dimensions and material of these components should be checked together to ensure proper assembly and sealing.
Buyers should provide the expected cleaning chemicals, temperature, sterilization conditions, and operating environment when selecting the ferrule and sealing components for CIP/SIP systems.
AVM supplies BS 4825 sanitary ferrules for hygienic piping projects requiring different sizes, material grades, surface finishes, and connection configurations.
For quotation and technical confirmation, buyers can provide the tube OD, material grade, quantity, surface finish, gasket requirement, and application.
For pharmaceutical, biotechnology, food, dairy, beverage, and high-purity projects, AVM can confirm the applicable product configuration and available technical documentation according to the specific order requirements.
The ferrule is designed according to BS 4825 Part 3 requirements for hygienic ferrules and is intended for compatible sanitary clamp piping systems.
The standard material is 316L stainless steel / 1.4404. 304 stainless steel can also be supplied for suitable applications.
The supplied size range is 1/2" to 8". Common sizes include 1/2", 1", 2", 3", 4", and 6". The exact dimensions should be confirmed against the required tube standard before ordering.
Yes. The ferrule can be used in pharmaceutical and biotechnology sanitary piping systems when the selected material, surface finish, gasket, and complete system configuration meet the project's hygienic requirements.
The ferrule can be configured according to applicable 3-A, EHEDG, and FDA-related requirements. The exact compliance and documentation depend on the material, surface finish, gasket, and specific product configuration. Buyers should confirm the required documentation with AVM before ordering.
The standard surface finish is Ra ≤ 0.8 μm. If the project requires a different surface specification, buyers should state the required finish when requesting a quotation.
Yes. The ferrule can be incorporated into CIP/SIP-compatible sanitary piping systems. The complete connection assembly, including the gasket and clamp, must be suitable for the actual cleaning and sterilization conditions.
The ferrule is the tube connection component. A compatible clamp and gasket can be specified according to the project requirements. Buyers should confirm whether they require an individual ferrule or a complete connection assembly.
316L stainless steel is generally recommended for higher corrosion resistance and demanding hygienic applications. 304 stainless steel can be used where the process medium and operating environment are compatible with its material properties.
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