Is the STORZ Firefighter Coupling with BSP Male Thread, Stainless Steel compatible with standard 2½" hose fittings and other staggered hook-spacing connections?

Yes. The STORZ Firefighter Coupling with BSP Male Thread, Stainless Steel is compatible with standard 2½" hose fittings and other connectors that share the same (staggered) hook-spacing. Its symmetrical Storz coupling design and matching hook spacing allow quick, tool-free mating with any Storz components of the same size, while the large unobstructed flow bore preserves full flow capacity. Constructed from stainless steel with a Viton seal and rated to 16 bar, it provides a durable, leak‑free connection suitable for firefighting and other demanding fluid-handling applications.

Can the STORZ Firefighter Coupling with BSP Male Thread, Stainless Steel be used with aggressive chemicals or food-grade applications without compromising the viton seal?

STORZ Firefighter Coupling with BSP Male Thread, Stainless Steel uses a Viton (FKM) seal, which is known for excellent resistance to many oils, fuels, solvents, and a broad range of chemicals, and it is commonly accepted in food-processing equipment when formulated to food-contact specifications. However, chemical compatibility depends on specific aggressive substances, concentrations, temperatures and exposure time. Practical guidance: - For many aggressive chemicals (strong acids, caustics, ketones like acetone, some amines) and high-temperature or continuous exposure, Viton can degrade — verify compatibility with the chemical manufacturer and a chemical-compatibility chart. - For food-grade applications, ensure the Viton seal supplied is a food-contact grade (e.g., meets FDA or EU regulations) and confirm the stainless steel surface finish and any lubrication are also food-safe. - For critical or continuous aggressive-chemical use, consider alternative elastomers (e.g., EPDM, PTFE-lined options) or request manufacturer confirmation. Conclusion: STORZ Firefighter Coupling with BSP Male Thread, Stainless Steel may be suitable for many chemical and food applications, but always confirm the specific chemical compatibility, seal grade (food approval if needed), temperature and concentration limits with the manufacturer before use.

STORZ Firefighter Coupling with BSP Male Thread, Stainless Steel

All products, Symmetrical claw couplings/

Additional information

Material	SS – stainless steel

The STORZ adaptor with external BSP thread is a highly versatile and durable solution designed for demanding transmission installations involving liquids and bulk substances. Manufactured from premium stainless steel, it ensures long-lasting resistance to corrosion and wear, even in intensive operating conditions. Its symmetrical connection system allows for quick and effortless coupling, while compatibility with elements of the same hook spacing guarantees flexibility in use across various applications. With a large, unobstructed flow diameter, the adaptor provides efficient fluid transfer, making it an excellent choice for firefighting operations, irrigation systems, chemical processes, food production, and agricultural needs. Engineered to withstand working pressures up to 16 bar and equipped with a reliable viton seal, it delivers secure, leak-free performance. This robust and user-friendly component is the perfect solution for professionals seeking efficiency, safety, and reliability in fluid handling systems.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
ST-22-031050-43	STORZ adapter 31 mm with GZ 1/2" BSP, SS	-	16	In stock	Enquiry
ST-22-031075-43	STORZ adapter 31 mm with GZ 3/4" BSP, SS	-	16	In stock	Enquiry
ST-22-031100-43	STORZ adapter 31 mm with GZ 1" BSP, SS	-	16	In stock	Enquiry
ST-22-051150-43	STORZ adapter 51 mm with GZ 1.1/2" BSP, SS	-	16	In stock	Enquiry
ST-22-066100-43	STORZ adapter 66 mm with GZ 1" BSP, SS	-	16	In stock	Enquiry
ST-22-066125-43	STORZ adapter 66 mm with GZ 1.1/4" BSP, SS	-	16	In stock	Enquiry
ST-22-066150-43	STORZ adapter 66 mm with GZ 1.1/2" BSP, SS	-	16	In stock	Enquiry
ST-22-066200-43	STORZ adapter 66 mm with GZ 2" BSP, SS	-	16	In stock	Enquiry
ST-22-081200-43	STORZ adapter 81 mm with 2" BSP female thread, stainless steel	-	16	In stock	Enquiry
ST-22-081250-43	STORZ adapter 81 mm with GZ 2.1/2" BSP, SS	-	16	In stock	Enquiry
ST-22-089200-43	STORZ adapter 89 mm with GZ 2" BSP, SS	-	16	In stock	Enquiry
ST-22-089250-43	STORZ adapter 89 mm with GZ 2.1/2" BSP, SS	-	16	In stock	Enquiry
ST-22-089300-43	STORZ adapter 89 mm with GZ 3" BSP, SS	-	16	In stock	Enquiry
ST-22-133400-43	STORZ adapter 133 mm with GZ 4" BSP, SS	-	16	In stock	Enquiry

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The STORZ adaptor with external BSP thread is a highly versatile and durable solution designed for demanding transmission installations involving liquids and bulk substances. Manufactured from premium stainless steel, it ensures long-lasting resistance to corrosion and wear, even in intensive operating conditions. Its symmetrical connection system allows for quick and effortless coupling, while compatibility with elements of the same hook spacing guarantees flexibility in use across various applications. With a large, unobstructed flow diameter, the adaptor provides efficient fluid transfer, making it an excellent choice for firefighting operations, irrigation systems, chemical processes, food production, and agricultural needs. Engineered to withstand working pressures up to 16 bar and equipped with a reliable viton seal, it delivers secure, leak-free performance. This robust and user-friendly component is the perfect solution for professionals seeking efficiency, safety, and reliability in fluid handling systems.