GUIDI hose barb with male BSPP thread is a straight marine fitting in the 1004B series for secure connection between flexible hoses and components with a compatible female BSPP thread. The series is available in several thread and hose connection sizes, allowing it to be used in various marine piping systems, water installations, and plumbing solutions.
The fitting combines a ribbed hose barb, a hexagonal tool surface, and a cylindrical, parallel BSPP pipe thread in one robust construction. The hose must be routed correctly over the barb and secured with a suitable hose clamp. The hexagonal section allows the connection to be tightened with appropriate tools without stressing the hose barb itself.
The hose barb is manufactured from bronze, including variants in CC499K bronze, which is suitable for marine installations with salt water and fresh water, as well as installations below the waterline. The design supports good flow and can help limit pressure drop, air bubbles, and cavitation in the fluid system. One variant is documented as suitable for the passage of drinking water and has a specified maximum pressure resistance of 40 bar. Pressure data depends on the chosen variant and the overall construction of the system.
The male BSPP thread follows ISO 228-1 / ISO 228/1 and BS 2779. BSPP threads are parallel and not self-sealing, so the joint must be sealed with a suitable O-ring, gasket, sealing washer, or thread sealant according to the design of the counterpart. BSPP and NPT must not be combined as a reliable, pressure-tight connection. Gaskets, hose clamps, and sealing material are not documented as part of the delivery.
The 1004B series is covered by RINA type approval, including DIP235223CS/001, as well as Lloyd’s Register approval and installation according to ISO 9093:2020. The approvals apply to installations on smaller vessels with a hull length of up to 24 m when assembly is performed according to current instructions. The approvals do not include fire extinguishing systems or flammable liquids.
Key featuresStraight hose barb with male BSPP thread
Multiple thread and hose connection combinations
Ribbed barb and hexagonal tool surface
Manufactured in bronze, including CC499K
For marine salt water and fresh water installations
Thread standards: ISO 228-1 / ISO 228/1 and BS 2779
RINA and Lloyd’s Register type approvals
Installation with reference to ISO 9093:2020
