FAQ

|Fittings

Which of the following is least likely to leak: a KFG2 series stainless steel 316 insert fitting, a KQG2 series stainless steel 316 One-touch fitting, or a KQB2 series metal One-touch fitting?

KFG2, KQG2, and KQB2 series fittings are tested for airtightness according to the same standards: JIS.
The leakage amount is the same for all 3 types. However, in terms of pull-out strength, it can be said that KFG2 series insert fittings are strongest.
(The pull-out strength of KQG2 and KQB2 series fittings is the same.)