1. A Pressure Relief Fittings are used on gearbox housings and bearings (king pins, universal joints, etc.) where excessive lubrication pressure is not desired.
2. It is also referred to Pressure Relief Zerk Fittings, Pressure Relief Lubrication Fittings, and Pressure Relief Grease Zerks.
3. Fitting profile and dimensions are comply to SAE, DIN, BS,JIS, & IS standards.