Marine buying guides
Short, practical guides for superintendents, purchasers and yard engineers.
JIS, DIN or ANSI? How to identify a marine valve before you order
A practical guide to telling JIS, DIN and ANSI marine valves apart by nameplate, flange and bolt pattern, so the replacement fits first time.
A4 (316) or A2 (304)? Choosing stainless fasteners for seawater
Why A4 (316) stainless fasteners are the usual marine choice, when A2 is acceptable, and how to avoid galvanic corrosion with mixed metals.