Is the STORZ fireman's reduction, aluminum suitable for use with food-grade liquids and what seal material is used?

Yes. The STORZ fireman's reduction, aluminum is described as intended for transmission of liquid and bulk substances including use in the food industry, so it is suitable for use with food-grade liquids provided the materials meet your specific food-contact standards and any applicable regulations. Seal material: forged couplings use white NBR rubber; cast couplings use black NBR rubber. Note: NBR (nitrile rubber) is commonly used for many food applications but is not universally certified for all food-contact situations.confirm compliance with relevant food-safety certifications (e.g., FDA, EU) for your specific application and operating conditions.

Can the STORZ fireman's reduction, aluminum be used with corrosive chemicals, and which seal material is recommended?

STORZ fireman's reduction, aluminum can be used with many chemicals but suitability depends on the specific corrosiveness and solvent properties of the chemical. Aluminum is susceptible to attack by strong acids, alkalis and some chlorinated solvents. For aggressive or highly corrosive chemicals, aluminum is not recommended. Seals supplied: white NBR (forged couplings, up to 16 bar) and black NBR (cast couplings, up to 6 bar). NBR (nitrile rubber) resists oils, fuels and many hydrocarbons but has limited resistance to strong acids, strong bases, ketones, esters and chlorinated hydrocarbons. For corrosive chemicals, choose compatible seal materials (e.g., EPDM for acids/alkalis, FKM/Viton for many aggressive organics, PTFE for broad chemical compatibility) and verify with chemical compatibility charts and operating conditions before use.

Can STORZ fireman's reduction, aluminum be used in high-pressure irrigation systems and what is the max working pressure?

Yes. STORZ fireman's reduction, aluminum can be used in high-pressure irrigation systems, but the maximum working pressure depends on the version: - Forged version: up to 16 bar (suitable for higher-pressure irrigation). - Cast version: up to 6 bar (for lower-pressure applications). Both versions feature aluminum construction and large unobstructed flow diameter; forged couplings use white NBR seals, cast couplings use black NBR seals. Ensure you select the forged 16 bar version for high-pressure irrigation and verify system compatibility and safety margins before use.

Reducer fire STORZ, aluminum

All products, Symmetrical claw couplings/

Additional information

Material	AL – aluminum

A STORZ reducing coupling 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. Available in a forged version with a working pressure of up to 16 bar and in a cast version, characterized by a significantly lower strength, with a working pressure of up to 6 bar. Material: aluminum. Working pressure: 16 bar (coupling forged), 6 bar (coupling cast). Gasket: white NBR rubber (forged couplings), black NBR rubber (cast couplings).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
ST-35-031100-11	Reducer STORZ 31x40 mm, Al (Geka)	-	16	In stock	Enquiry
ST-35-051031-11	Reducer STORZ 51x31 mm, Al	-	16	In stock	Enquiry
ST-35-059031-11	Reducer STORZ 59x31 mm, Al	-	16	In stock	Enquiry
ST-35-066031-11	Reducer STORZ 66x31 mm, Al	-	16	In stock	Enquiry
ST-35-066031-US	Reducer STORZ 66x31 mm, cast Al	-	6	In stock	Enquiry
ST-35-066044-11	Reducer STORZ 66x44 mm, Al	-	16	In stock	Enquiry
ST-35-066051-11	Reducer STORZ 66x51 mm, Al	-	16	In stock	Enquiry
ST-35-066100-11	Reducer STORZ 66x40 mm, Al (Geka)	-	16	In stock	Enquiry
ST-35-081051-11	Reducer STORZ 81x51 mm, Al	-	16	In stock	Enquiry
ST-35-081059-11	Reducer STORZ 81x59 mm, Al	-	16	In stock	Enquiry
ST-35-081066-11	Reducer STORZ 81x66 mm, Al	-	16	In stock	Enquiry
ST-35-089066-11	Reducer STORZ 89x66 mm, Al	-	16	In stock	Enquiry
ST-35-089066-US	Reducer STORZ 89x66 mm, cast Al	-	6	In stock	Enquiry
ST-35-089081-11	Reducer STORZ 89x81 mm, Al	-	16	In stock	Enquiry
ST-35-105089-11	Reducer STORZ 105x89 mm, Al	-	16	In stock	Enquiry
ST-35-115081-11	Reducer STORZ 115x81 mm, Al	-	16	In stock	Enquiry
ST-35-115089-11	Reducer STORZ 115x89 mm, Al	-	16	In stock	Enquiry
ST-35-115105-11	Reducer STORZ 115x105 mm, Al	-	16	In stock	Enquiry
ST-35-133066-11	Reducer STORZ 133x66 mm, Al	-	16	In stock	Enquiry
ST-35-133081-11	Reducer STORZ 133x81 mm, Al	-	16	In stock	Enquiry
ST-35-133089-11	Reducer STORZ 133x89 mm, Al	-	16	In stock	Enquiry
ST-35-133089-US	Reducer STORZ 133x89 mm, cast Al	-	6	In stock	Enquiry
ST-35-133105-11	Reducer STORZ 133x105 mm, Al	-	16	In stock	Enquiry
ST-35-133115-11	Reducer STORZ 133x115 mm, Al	-	16	In stock	Enquiry
ST-35-148115-11	Reducer STORZ 148x115 mm, Al	-	16	In stock	Enquiry
ST-35-148133-11	Reducer STORZ 148x133 mm, Al	-	16	In stock	Enquiry
ST-35-160115-11	Reducer STORZ 160x115 mm, Al	-	16	In stock	Enquiry
ST-35-160133-11	Reducer STORZ 160x133 mm, Al	-	16	In stock	Enquiry
ST-35-160148-11	Reducer STORZ 160x148 mm, Al	-	16	In stock	Enquiry
ST-35-188133-11	Reducer STORZ 188x133 mm, Al, PN10	-	10	In stock	Enquiry
ST-35-188160-11	Reducer STORZ 188x160 mm, Al, PN10	-	10	In stock	Enquiry
ST-35-220160-11	Reducer STORZ 220x160 mm, Al, PN10	-	10	In stock	Enquiry
ST-35-278220-11	Reducer STORZ 278x220 mm, Al, PN10	-	10	In stock	Enquiry

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A STORZ reducing coupling 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. Available in a forged version with a working pressure of up to 16 bar and in a cast version, characterized by a significantly lower strength, with a working pressure of up to 6 bar. Material: aluminum. Working pressure: 16 bar (coupling forged), 6 bar (coupling cast). Gasket: white NBR rubber (forged couplings), black NBR rubber (cast couplings).