Is the STORZ firefighter connector with hose end, brass compatible with food-grade liquids and how is the white NBR seal certified for such use?

Short answer: Possibly, but not guaranteed without supplier certification. Explanation: The STORZ firefighter connector with hose end, brass is described for use across multiple sectors including the food industry, which indicates the design and materials (brass body, white NBR seal) are suitable for handling many liquids used in food processing. However, food-grade compatibility depends on specific certifications and standards for the seal and the full assembly, not only the general application list. About the white NBR seal: NBR (nitrile rubber) can be formulated to meet food-contact requirements, but not all NBR compounds are food-grade. Food-grade NBR typically must comply with recognized standards (e.g., FDA 21 CFR 177.2600 in the US, EU Regulation (EC) No 1935/2004 and/or specific positive lists such as EU No. 10/2011, or national approvals). The product description does not state any specific food-contact certification for the white NBR seal. What to do to confirm suitability: - Request from the manufacturer or supplier written certification or declaration of conformity that the white NBR seal meets the applicable food-contact regulations for your market and the specific liquids you intend to transfer. - Ask for material data sheets (MSDS) and specific test reports (e.g., migration tests, FDA/EU compliance statements). - Verify compatibility of NBR with the particular food-grade liquids (temperature, fats/oils, alcohol content), since NBR has limited resistance to some fats, oils and certain solvents. Conclusion: The connector is marketed for use in the food industry, but you should obtain explicit food-contact certification for the white NBR seal and confirm chemical compatibility for your intended liquids before use.

Can the STORZ firefighter connector with hose end, brass be used with corrosive chemicals and what temperature range can the white NBR seal withstand?

STORZ firefighter connector with hose end, brass may be suitable for many chemical applications, but caution is required with corrosive chemicals. Brass resists many nonâoxidizing substances but can be attacked by ammonia, strong acids, chlorides and some solvents; compatibility should be checked against the specific chemical. The white NBR seal (nitrile rubber) resists oils, fuels and many hydrocarbons; typical usable temperature range for NBR is about -30Â°C to +100Â°C (shortâterm up to ~120Â°C), but chemical exposure can reduce this range. For corrosive media or critical service, consult manufacturerâs chemical compatibility data or choose materials specifically rated for the chemicals in question.

Can the STORZ firefighter connector with hose end, brass be sterilized for use in food processing lines?

Probably not recommended for direct use in sanitary food-processing lines without additional verification and possibly modifications. Reasoning: - Material: The STORZ firefighter connector with hose end, brass is made of brass. Brass can be acceptable in some food-contact applications, but food-grade suitability depends on alloy composition (lead content, dezincification resistance) and surface condition. Standard brass may contain lead or other impurities that are not permitted for prolonged food contact. - Seal: The connector uses a white NBR (nitrile) rubber seal. NBR is not inherently certified for food contact; only specific food-grade NBR formulations meet regulatory limits (e.g., FDA 21 CFR 177.2600 or EU rules). Standard NBR may leach substances or not tolerate repeated sterilization. - Cleanability and sterilization: The product is designed for firefighting and general industrial use, not necessarily for sanitary CIP/SIP procedures. Its geometry (threads, hook/lugs, gasket grooves) may trap residues and make effective cleaning or sterilization difficult. Typical food-industry sterilization methods (hot water, steam, chemical sanitizers, or aggressive caustic cleaners) may degrade standard brass finishes and standard NBR seals, reducing performance and hygiene. - Pressure and temperature: Working pressure is 16 bar, which may be sufficient, but temperature limits of the material and seal under sterilization (e.g., steam at 121â134Â°C) must be confirmed. Standard NBR degrades above ~100â120Â°C and is not suitable for high-temperature steam sterilization. Recommendation: - Verify alloy composition and request food-grade (lead-free, dezincification-resistant) brass certification from the manufacturer if direct food contact is intended. - Replace the seal with a certified food-grade elastomer (e.g., FDA/EC-compliant NBR, EPDM, or silicone) that is rated for your sterilization method. - Confirm that the connectorâs design permits proper cleaning (CIP) and secure sanitary seals; if not, use dedicated sanitary couplings (tri-clamp, hygienic quick-release) designed for food processing and validated for CIP/SIP. - Obtain manufacturer documentation/certificates for food-contact suitability and allowed sterilization procedures before use. Conclusion: The STORZ firefighter connector with hose end, brass may be usable in food-related, non-critical transfer after certification and appropriate seal/material upgrades, but as supplied it is not automatically suitable for sterilization and sanitary food-processing lines without manufacturer confirmation and likely modifications.

A STORZ fire coupling with fitting for hose, brass

All products, Symmetrical claw couplings/

Additional information

Material	B – brass (bronze)

A STORZ coupling with a hose end intended for transfer installations for liquid and bulk substances. Used in firefighting, irrigation systems, the chemical and food industry, agriculture, etc.. Characterized by a large, unobstructed flow diameter. With a symmetrical design of the connection part, thanks to which they can be easily connected together. Parts with the same lug spacing can be connected. Material: brass. Working pressure: 16 bar. Gasket: white NBR rubber.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Price	Quantity	Actions	Catalogue
ST-12-066038-30	Coupling STORZ 66 mm with Fitting for 38 mm hose, Ms	38	16	In stock	0 zł		Enquiry
ST-12-066052-30	Coupling STORZ 66 mm with Fitting for 52 mm hose, Ms	50	16	In stock	0 zł		Enquiry

Do you need a larger quantity of products or a bespoke quote?

Call us: +48 61 653 02 22 or email us: tubes@tubes-international.com

SEND ENQUIRY

A STORZ coupling with a hose end intended for transfer installations for liquid and bulk substances. Used in firefighting, irrigation systems, the chemical and food industry, agriculture, etc.. Characterized by a large, unobstructed flow diameter. With a symmetrical design of the connection part, thanks to which they can be easily connected together. Parts with the same lug spacing can be connected. Material: brass. Working pressure: 16 bar. Gasket: white NBR rubber.