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RPM Diffusion — Professional Marine Valves

Seawater strainer

A seawater strainer, also called a raw water strainer, is fitted on the suction side, between the seacock and the raw water pump. Its basket stops debris before it reaches the pump and the cooling circuit.

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The Guidi range includes the threaded Mediterraneo, Ionio and Tirreno series and flanged strainers, horizontal or vertical, up to DN250. According to the Mediterraneo data sheet: nickel-plated bronze body (or black anodised aluminium), 316L stainless steel basket, transparent polycarbonate cover that shows the clogging, neoprene seal, ISO 228-1 thread and RINA approval. The data sheets of the other series also state RINA. Medana & Visca completes the range with bronze mud boxes.

How to choose: take a size suited to the piping, then check the flow rate on the data sheet. The Mediterraneo sheet gives, for a clean strainer, the flow rate at a pressure drop of 0.1 bar and 1 bar, from 3/8 to 4 inches. Nominal pressure ranges from PN4 to PN16 depending on the model.

Spare baskets, covers, discs, seals and anodes are in the Filter spare parts family.

Brands: Guidi, Medana & Visca and RPM.

13 products