Is the STORZ Firefighter Coupling with Male & Female BSP Threads, Aluminum compatible with standard firefighting hoses and adapters?

Yes — the STORZ Firefighter Coupling with Male & Female BSP Threads, Aluminum is compatible with standard firefighting hoses and many common adapters. Its symmetrical STORZ design enables quick, tool‑free connections to other couplings with identical hook spacing, while the external BSP threads (male and female) allow direct mating with standard BSP‑threaded adapters and fittings. Made from durable aluminum and fitted with a white NBR rubber seal, it offers reliable tightness and operation up to 16 bar, plus a large unobstructed bore for efficient flow—features well suited to firefighting hoses, irrigation lines and typical industry adapters. Ensure mating parts share the same STORZ size and BSP thread standard to guarantee proper fit and leak‑free performance.

Can the STORZ Firefighter Coupling with Male & Female BSP Threads, Aluminum be used with potable water systems and approved for food-grade applications?

The STORZ Firefighter Coupling with Male & Female BSP Threads, Aluminum may be used in contact with potable water and food-grade applications only if all components meet relevant potable-water and food-contact regulations for your jurisdiction. The product description notes aluminum construction and a white NBR rubber seal and states suitability for the food industry, but it does not explicitly certify compliance with potable-water or food-grade standards (e.g., NSF/ANSI 61, WRAS, ACS, EU Regulation 1935/2004, or relevant national approvals). NBR (nitrile) is commonly used in food and water systems, but specific formulations and certifications vary — only certified food-grade NBR is acceptable for guaranteed compliance. Aluminum alloys can be acceptable for food/contact use if they meet required material and surface-treatment standards. Recommendation: Verify with the manufacturer or supplier for documented certifications (NSF/WRAS/ACS or EU/ national food-contact declarations) and confirm the exact NBR grade used. Without such documentation, do not assume the coupling is approved for potable water or regulated food-grade applications.

STORZ Firefighter Coupling with Male & Female BSP Threads, Aluminum

All products, Symmetrical claw couplings/

Additional information

Material	AL – aluminum

The STORZ coupling with external BSP thread is a highly versatile solution designed for reliable installations in systems transporting liquids and bulk materials. Manufactured from durable aluminum, it ensures strength and long-lasting performance even under demanding conditions. Its symmetrical connection design allows for quick and effortless assembly, as elements with identical hook spacing can be easily joined together. Thanks to the large, unobstructed flow diameter, the coupling guarantees efficient throughput, making it ideal for firefighting applications, irrigation systems, as well as use in the chemical, food, and agricultural industries. With a working pressure of up to 16 bar and a high-quality white NBR rubber seal, it provides excellent tightness and operational safety. This robust and practical connector is the perfect choice for professionals seeking efficiency, reliability, and universal compatibility in their installations.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
ST-37-150150-10	Nipple GZ 1.1/2" / GZ 1.1/2" BSP, Al	-	16	In stock	Enquiry
ST-37-150200-10	Adapter GZ 1.1/2" / GZ 2" BSP, Al	-	16	In stock	Enquiry
ST-37-200200-10	Adapter GZ 2" / GZ 2" BSP, Al	-	16	In stock	Enquiry
ST-37-200300-10	Nipple GZ 2" / GZ 3" BSP, Al	-	16	In stock	Enquiry
ST-37-250250-10	Bushing GZ 2.1/2" / GZ 2.1/2" BSP, Al	-	16	In stock	Enquiry
ST-37-250300-10	Adapter GZ 2.1/2" / GZ 3" BSP, Al	-	16	In stock	Enquiry
ST-37-300300-10	3" BSP male-female nipple, Al	-	16	In stock	Enquiry
ST-37-300400-10	GZ nipple 3" / GZ 4" BSP, Al	-	16	In stock	Enquiry
ST-37-400400-10	Nipple GZ 4" / GZ 4" BSP, Al	-	16	In stock	Enquiry
ST-37-500500-10	GZ nipple 5" / GZ 5" BSP, Al	-	16	In stock	Enquiry
ST-37-600600-10	Nipple GZ 6" / GZ 6" BSP, Al	-	16	In stock	Enquiry
ST-37-800800-10	Nipple GZ 8" / GZ 8" BSP, Al	-	16	In stock	Enquiry

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The STORZ coupling with external BSP thread is a highly versatile solution designed for reliable installations in systems transporting liquids and bulk materials. Manufactured from durable aluminum, it ensures strength and long-lasting performance even under demanding conditions. Its symmetrical connection design allows for quick and effortless assembly, as elements with identical hook spacing can be easily joined together. Thanks to the large, unobstructed flow diameter, the coupling guarantees efficient throughput, making it ideal for firefighting applications, irrigation systems, as well as use in the chemical, food, and agricultural industries. With a working pressure of up to 16 bar and a high-quality white NBR rubber seal, it provides excellent tightness and operational safety. This robust and practical connector is the perfect choice for professionals seeking efficiency, reliability, and universal compatibility in their installations.