Inline Non-Return Marine Valve 12/20mm – Boat Plumbing Fittings 385526
Inline Non-Return Valve 12/20mm
Help maintain prime in a suction or discharge line with this 12 or 20 mm inline non-return valve. Product 385526 is the connection-size option to match against the existing hose.
The inline format fits within the pipe run, so check the required flow direction and access before installation. Confirm the surrounding hose layout as well as the nominal size.
Choosing and using this product
When comparing alternatives, use the specified material and intended application rather than assuming every marine fitting is suitable for every liquid. Keep the part reference with the plumbing records so future spares can be matched to the connection actually installed.
Plan the connection from the system outward: identify the fluid application, mating thread or hose size, and the space available for the fitting. A nominal pipe-thread size is a separate measurement from a hose diameter, so compare the correct dimension at each connection.
For this version, connection sizes: 12 or 20 mm. Use that specific detail when comparing the item with your existing equipment or planned installation. Other sizes and configurations in the range should be checked separately rather than treated as equivalent.
Keep service points accessible and follow the relevant system instructions for fastening, sealing and hose support. Avoid forcing a hose or thread to compensate for an unsuitable fitting. Confirm the finished connection and normal system operation before putting the installation back into use.
Check the stated contents when putting together the plumbing run. A fitting-only listing does not necessarily include hose, clamps, seals or a mounting assembly. Lay out the required connections before installation so the finished arrangement can be checked as a whole.
For a replacement, inspect the existing fitting and adjoining hose before ordering. Consider the direction of the connection as well as its size. An elbow, straight fitting or barbed tail changes the route and clearance needed even when the nominal connection size is similar.
Product details
- Connection sizes: 12 or 20 mm
- Function: maintains prime in suction or discharge line
- Product code: 385526
