GUIDI 2300 series full-bore bronze ball valve with F/F thread is a manual, lever-operated 2-way valve for regulating and shutting off liquid flow in maritime piping systems. The valve is available in several thread dimensions and is suitable for, among other things, hydraulic circuits, drainage systems, and cooling circuits for engines, generators, watermakers, and air conditioning systems.
The full bore ensures a straight flow path with high capacity and minimal restriction when the valve is fully open. The documented flow values vary by valve variant from 9,000 to 800,000 l/h at 1 bar. The valves are rated for nominal working pressures up to 16 bar, PN16, where applicable to the selected variant.
The valve body and end piece are manufactured from CC499K bronze. The construction includes PTFE valve seats and an anti-friction ring, an EPDM O-ring, as well as a ball and blowout-proof spindle in brass with a corrosion-resistant surface treatment. The lever and nut are made of AISI 304 stainless steel. The surface treatment reduces friction and limits the adhesion of marine organisms.
The F/F connection has internal threads at both ends. The thread is specified as BSPP and complies with EN 10226-1/EN 10226/1 (BS 21). The parallel BSP thread does not seal on its own and must be installed with a suitable gasket, O-ring, or thread sealant. BSP and NPT threads should not be considered directly interchangeable. Variant-dependent dimensions, bore, capacity, weight, and spare parts can be found in the selected configuration.
The 2300 series is RINA type-approved according to ISO 9093:2020 and is covered by Lloyd’s Register type approval. The RINA approval covers installation on small craft with a hull length of up to 24 m, provided the installation is carried out according to the installation instructions and the relevant standard. The Lloyd’s Register approval does not cover use in fire-fighting systems or with flammable media.
Key features
Manual, lever-operated 2-way ball valve
F/F connection with internal thread at both ends
Full bore with high flow capacity
Valve body and end piece in CC499K bronze
PTFE seats, EPDM O-ring, and blowout-proof spindle
Lever and nut in AISI 304 stainless steel
BSPP thread according to EN 10226-1/BS 21
RINA and Lloyd’s Register type-approved
