Is the STORZ Brass Firefighter Swivel Coupling with BSP Female Thread compatible with standard 1.5" and 2.5" firefighting hoses?

STORZ Brass Firefighter Swivel Coupling with BSP Female Thread is designed as a universal Storz swivel with an internal BSP thread and a symmetrical (Storz) connection. Compatibility with standard firefighting hoses depends on two things: (1) the Storz coupling size (the coupling’s nominal diameter) and (2) whether the hose or adapter uses a matching Storz female/male profile. Common firefighting Storz sizes include DN25 (1"), DN40 (1.5"), DN65 (2.5") etc. If the STORZ Brass Firefighter Swivel Coupling with BSP Female Thread is the DN40 variant it will pair with standard 1.5" Storz hoses; if it is the DN65 variant it will pair with standard 2.5" Storz hoses. The BSP internal thread allows attachment to threaded pipes or fittings of the matching BSP size, not directly to non‑Storz threaded hose ends. Conclusion: The coupling can be compatible with standard 1.5" and 2.5" firefighting hoses only if you select the matching Storz size (DN40 for 1.5", DN65 for 2.5") — otherwise it will not mate. Ensure the coupling’s nominal Storz size and BSP thread size match your hose or adapter specifications.

Can the STORZ Brass Firefighter Swivel Coupling with BSP Female Thread be used with potable water systems and food-grade applications?

The STORZ Brass Firefighter Swivel Coupling with BSP Female Thread can be used in potable water systems and food-grade applications with important reservations. Its high-quality brass body and robust black NBR rubber seal provide durability, tightness and resistance to wear, and the product description explicitly lists food processing among suitable applications, indicating suitability for certain food- and water-related uses. However, suitability for potable water and food-grade certification depends on specific material certifications (e.g., WRAS, ACS, NSF/ANSI 61, or EU food-contact approvals) and absence of lead or other contaminants in the brass alloy. Before using this coupling for drinking water or direct food contact, verify with the manufacturer or supplier that: - The brass alloy meets relevant potable-water and food-contact standards for your region. - The NBR seal is approved for potable water/food use. - Any required certification documentation is provided. If certified, the STORZ Brass Firefighter Swivel Coupling with BSP Female Thread is appropriate; if not, choose a certified alternative.

STORZ Brass Firefighter Swivel Coupling with BSP Female Thread

All products, Symmetrical claw couplings/

Additional information

Material	B – brass (bronze)
Standard length [m]	10

The STORZ swivel coupling with internal BSP thread is a durable and versatile solution designed for efficient transmission of liquids and bulk materials across a wide range of industries. Manufactured from high-quality brass, it ensures long-lasting performance and resistance to demanding working conditions, while its symmetrical connection design allows for quick and effortless coupling with other elements of the same spacing. Engineered to withstand working pressures up to 16 bar, it guarantees reliability and safety in critical applications such as firefighting, irrigation systems, agriculture, food processing, and the chemical sector. The robust black NBR rubber seal provides excellent tightness and resistance to wear, ensuring leak-free operation even under intensive use. Thanks to its precision construction and universal compatibility, this coupling is an ideal choice for professionals seeking efficiency, durability, and ease of use in their installations.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]	Enquiry	Catalogue
ST-23-066200-30	STORZ swivel connector 66 mm with 2" BSP male thread, brass	-	16

The STORZ swivel coupling with internal BSP thread is a durable and versatile solution designed for efficient transmission of liquids and bulk materials across a wide range of industries. Manufactured from high-quality brass, it ensures long-lasting performance and resistance to demanding working conditions, while its symmetrical connection design allows for quick and effortless coupling with other elements of the same spacing. Engineered to withstand working pressures up to 16 bar, it guarantees reliability and safety in critical applications such as firefighting, irrigation systems, agriculture, food processing, and the chemical sector. The robust black NBR rubber seal provides excellent tightness and resistance to wear, ensuring leak-free operation even under intensive use. Thanks to its precision construction and universal compatibility, this coupling is an ideal choice for professionals seeking efficiency, durability, and ease of use in their installations.