Is the STORZ firefighter connector with BSP female thread, brass compatible with standard BSP-threaded hoses and fittings used in firefighting and irrigation systems?

Yes . the STORZ firefighter connector with BSP female thread, brass is compatible with standard BSP-threaded hoses and fittings used in firefighting and irrigation systems, provided the mating parts have the same BSP thread size and hook spacing. Its internal BSP thread allows direct connection to standard BSP-threaded pipes and couplings. The connectorâs symmetrical Storz-style design, large unobstructed flow diameter and matching hook spacing enable easy, reliable joins with other Storz-compatible elements. Constructed from brass with a black NBR rubber seal and rated to 16 bar, it is suitable for typical firefighting and irrigation pressures and fluids (including many chemicals and food-industry liquids), though compatibility with specific chemicals or higher pressures should be verified case-by-case.

Can the STORZ firefighter connector with BSP female thread, brass be used safely with food-grade liquids and bulk food processing equipment?

The STORZ firefighter connector with BSP female thread, brass may be used with food-grade liquids and in bulk food processing only with caution. Brass can leach copper/zinc; safe use requires that the brass alloy is certified food-grade (e.g., low-lead or leadâfree) and compatible with the specific product. The connectorâs black NBR (nitrile) seal is not universally foodâgrade - standard NBR often lacks food safety approval and can interact with oils, fats, or solvents. Working pressure (16 bar) and design suit industrial flow, but to ensure compliance you must verify: 1) material certification for potable/food contact for both brass and seal, 2) suitability of NBR for the liquids/temperatures involved, 3) cleanability and hygienic design for food processing, and 4) regulatory compliance (EU/US food contact rules). Without such certifications, it should not be assumed safe for food-grade use.

Does the STORZ firefighter connector with BSP female thread, brass require specific adapters for chemical-resistant hoses?

The STORZ firefighter connector with BSP female thread, brass does not inherently require special adapters specifically for chemical-resistant hoses, but compatibility depends on a few factors: - Seal material: The connector uses a black NBR (nitrile) rubber seal. NBR has good resistance to oils, fuels and many general-purpose fluids but is not suitable for strong oxidizers, certain ketones, chlorinated hydrocarbons, and some aggressive solvents. If the chemical hose and the fluids handled are incompatible with NBR, you will need either a connector with a different seal material (e.g., EPDM, FKM/Viton, or PTFE) or an adapter that provides a compatible sealing surface/material. - Hose end fitting and thread: The connector has an internal BSP female thread. If the chemical-resistant hose is manufactured with a matching BSP male thread and the same hook spacing for Storz coupling, no additional mechanical adapter is required. If the hose uses a different thread standard or a different coupling system, a thread/adapter transition will be necessary. - Brass body compatibility: Brass is broadly suitable for many applications but can corrode or suffer dezincification with certain chemicals (e.g., ammonia, strong acids, some brines). For aggressive chemicals, consider adapters or connectors in stainless steel or other compatible materials. - Pressure rating: The connector is rated to 16 bar. Ensure the hose and system operate within that limit; otherwise a different-rated adapter/connector is required. Recommendation: Verify the chemical compatibility of (1) NBR seal, (2) brass body, and (3) BSP thread fit with your specific chemical and hose construction. If any of these are incompatible, use a suitable adapter or choose a connector with chemically resistant seal material and/or a different body material.

STORZ firefighter connector with BSP female thread, brass

All products, Symmetrical claw couplings/

Additional information

Material	B – brass (bronze)

STORZ adaptor with internal BSP thread intended for transmission installations for liquid and bulk substances. Used in firefighting, irrigation systems, chemical industry, food industry, agriculture, etc. Characterized by a large, unobstructed flow diameter. With a symmetrical design of the connection part, allowing for easy connection. Elements with the same hook spacing can be connected. Material: brass. Working pressure: 16 bar. Seal: black NBR rubber.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
ST-21-031050-30	STORZ adapter 31 mm with 1/2" BSP thread, brass	-	16	In stock	Enquiry
ST-21-031075-30	STORZ adapter 31 mm with 3/4" BSP thread, brass	-	16	In stock	Enquiry
ST-21-031100-30	STORZ adapter 31 mm with 1" BSP thread, brass	-	16	In stock	Enquiry
ST-21-044100-30	STORZ adapter 44 mm with 1" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-044125-30	STORZ adapter 44 mm with 1.1/4" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-051100-30	STORZ adapter 51 mm with 1" BSP thread, brass	-	16	In stock	Enquiry
ST-21-051125-30	STORZ adapter 51 mm with 1.1/4" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-051150-30	STORZ adapter 51 mm with 1.1/2" BSP thread, brass	-	16	In stock	Enquiry
ST-21-051200-30	STORZ adapter 51 mm with 2" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-066100-30	STORZ adapter 66 mm with 1" BSP thread, brass	-	16	In stock	Enquiry
ST-21-066125-30	STORZ adapter 66 mm with 1.1/4" BSP thread, brass	-	16	In stock	Enquiry
ST-21-066150-30	STORZ adapter 66 mm with 1.1/2" BSP thread, brass	-	16	In stock	Enquiry
ST-21-066200-30	STORZ adapter 66 mm with 2" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-066250-30	STORZ adapter 66 mm with 2.1/2" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-081200-30	Adaptor STORZ 81 mm with 2" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-081250-30	STORZ adapter 81 mm with 2.1/2" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-081300-30	STORZ adapter 81 mm with 3" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-089200-30	Adaptor STORZ 89 mm with 2" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-089250-30	STORZ adapter 89 mm with 2.1/2" BSP thread, brass	-	16	In stock	Enquiry
ST-21-089300-30	STORZ adapter 89 mm with 3" BSP thread, brass	-	16	In stock	Enquiry
ST-21-115400-30	STORZ adapter 115 mm with 4" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-133400-30	STORZ adapter 133 mm with 4" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-133450-30	STORZ adapter 133 mm with 4.1/2" BSP thread, brass	-	16	In stock	Enquiry
ST-21-148500-30	STORZ adapter 148 mm with 5" BSP female thread, brass	-	16	In stock	Enquiry
ST-21-160600-30	STORZ adapter 160 mm with 6" BSP thread, brass	-	16	In stock	Enquiry

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STORZ adaptor with internal BSP thread intended for transmission installations for liquid and bulk substances. Used in firefighting, irrigation systems, chemical industry, food industry, agriculture, etc. Characterized by a large, unobstructed flow diameter. With a symmetrical design of the connection part, allowing for easy connection. Elements with the same hook spacing can be connected. Material: brass. Working pressure: 16 bar. Seal: black NBR rubber.