Is the STORZ firefighter connector with BSP female thread, stainless steel compatible with other Storz fittings and adapters?

Yes. The STORZ firefighter connector with BSP female thread, stainless steel is compatible with other STORZ fittings and adapters provided they share the same hook spacing and coupling size. Its symmetrical connection design and large unobstructed flow diameter allow it to easily mate with other Storz components. Note that a matching BSP male thread is required for the internal BSP thread, and seals (Viton) and material (stainless steel) ensure reliable performance at up to 16 bar working pressure across firefighting, irrigation, chemical, food and agricultural applications.

Can the STORZ firefighter connector with BSP female thread, stainless steel be used with food-grade hoses and fittings?

Yes - the STORZ firefighter connector with BSP female thread, stainless steel can be used with food-grade hoses and fittings, with reservations. Its stainless steel construction, large unobstructed flow diameter and Viton seal make it chemically and mechanically suitable for many food-industry applications. However, full food-grade suitability depends on: 1) certification of the specific stainless steel grade (e.g., 316L preferred) and surface finish (smooth, sanitary), 2) confirmation that the Viton seal meets relevant food-contact approvals for your product and temperature/chemical conditions, and 3) compatibility of connected hoses/fittings and assembly practices to maintain sanitary integrity. If you need guaranteed food-contact compliance, obtain material and seal certifications from the manufacturer and/or choose components explicitly certified for food use.

STORZ firefighter connector with BSP female thread, stainless steel

All products, Symmetrical claw couplings/

Additional information

Material	SS – stainless steel

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, it easily connects with each other. Elements with the same hook spacing can be connected. Material: stainless steel. Working pressure: 16 bar. Seal: viton.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
ST-21-031050-43	STORZ adapter 31 mm with 1/2" BSP thread, stainless steel	-	16
ST-21-031075-43	STORZ adapter 31 mm with 3/4" BSP thread, stainless steel	-	16
ST-21-031100-43	Adaptor STORZ 31 mm with 1" BSP thread, stainless steel	-	16
ST-21-051125-43	STORZ adapter 51 mm with 1.1/4" BSP thread, SS	-	16
ST-21-051150-43	STORZ adapter 51 mm with 1.1/2" BSP thread, SS	-	16
ST-21-066075-43	STORZ adapter 66 mm with 3/4" BSP thread, stainless steel	-	16
ST-21-066100-43	STORZ adapter 66 mm with 1" BSP thread, stainless steel	-	16
ST-21-066125-43	STORZ adapter 66 mm with 1.1/4" BSP thread, stainless steel	-	16
ST-21-066150-43	STORZ adapter 66 mm with 1.1/2" BSP female thread, stainless steel	-	16
ST-21-066200-43	STORZ adapter 66 mm with 2" BSP female thread, stainless steel	-	16
ST-21-081200-43	STORZ adapter 81 mm with 2" BSP female thread, stainless steel	-	16
ST-21-081250-43	STORZ adapter 81 mm with 2.1/2" BSP female thread, stainless steel	-	16
ST-21-089200-43	STORZ adapter 89 mm with 2" BSP female thread, stainless steel	-	16
ST-21-089250-43	STORZ adapter 89 mm with 2.1/2" BSP thread, stainless steel	-	16
ST-21-089300-43	Adaptor STORZ 89 mm with 3" BSP thread, SS	-	16
ST-21-115400-43	STORZ adapter 115 mm with 4" BSP female thread, stainless steel	-	16
ST-21-133400-43	STORZ adapter 133 mm with 4" BSP thread, stainless steel	-	16
ST-21-133450-43	STORZ adapter 133 mm with 4.1/2" BSP thread, stainless steel	-	16
ST-21-148500-43	STORZ adapter 148 mm with 5" BSP thread, stainless steel	-	16
ST-21-160600-43	STORZ adapter 160 mm with 6" BSP thread, stainless steel	-	16

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, it easily connects with each other. Elements with the same hook spacing can be connected. Material: stainless steel. Working pressure: 16 bar. Seal: viton.