There are some specific types of grooved pipe fittings that may require more frequent checks than others:
Flexible couplings
As these allow some movement/vibration in the piping, they can experience increased wear over time. Closer inspections, perhaps every 6-12 months, are recommended.
Flanged adaptors
The bolted flange connection is a potential leak point. Ensure bolts are tight during regular checks, at minimum annually.
Hydrants/hose fittings
Exposed exterior fittings used for hoses may see impacts or accidental bending. Check for cracks or damage after severe weather.
Stepped/reducing fittings
Places where pipe sizes change can experience added stress. Inspect gaskets and joint integrity annually.
Welded fittings
Over time, vibration can cause cracks to form near welds. Welded joints may need biannual ultrasound testing.
Chemical service fittings
corrosion resistance is crucial. fittings in corrosive fluid lines may need replacing every 2-5 years.
Buried fittings
Underground piping is difficult to access. Consider yearly pressure tests and checks of above-ground access points.
High temperature fittings
Heat accelerates wear; inspect bolted joints annually in steam or hot water lines.
Following manufacture recommendations and paying special attention to higher risk fittings can help catch issues before leaks or failures occur. Some may warrant replacement prior to standard service life intervals.
