Twin-Ferrule Compression Fitting Installation: The 1-1/4 Turn Rule, Bite Diagnosis, and Startup-Weep Triage
DK-Lok twin-ferrule fittings (1/4″–1″ sizes) install via exactly 1-1/4 turns of the nut past finger-tight, with the body held by a backup wrench. Smaller sizes (≤3/16″) use 3/4 turn. The rule is rotation count, not…
