Text For Citation: 01 Item/Group: 007F Hazard: REFINERY

29 CFR 1910.119(j)(6)(ii) Appropriate checks and inspections shall be performed to assure that equipment is installed properly and consistent with design specifications and the manufacturer's instructions. A) At Big West Oil, 333 W Center Street, North Salt Lake, UT 84054, the employer did not perform an adequate installation inspection of RV-3307 (protecting drum D-304 in Alky), RV-3423 (protecting tower T-303 in Alky), and RV-3396 (protecting tower T-304 in Alky). The 3 relief valves were converted from conventional to bellows design due to recommendations of a recent flare study. When replaced, the employer did not assure that equipment was installed properly and consistent with design specifications and the manufacturer's recommendations. This violation was identified during the OSHA field inspection of pressure relief valves RV- 3307, RV-3423 and RV-3396 in the alky unit when it was observed that the bonnet vents of the three bellows relief valves were not fitted with a protective device to avoid plugging caused by ice, insects or other obstructions as recommended by Section 5.2 of the 1994 API RP-520 Sizing, Selection, and Installation of Pressure-Relieving Devices in Refineries, Part II- Installation. Section 5.2 states: "The vent must be designed to avoid plugging caused by ice, insects or other obstructions. The bonnets of bellows valves must always be vented to ensure proper functioning of the valve and to provide a telltale in the event of a bellows failure." Appropriate inspections must be performed in order to avoid a release of the piping and potential employee exposures to hazardous chemicals contained by the process piping. This may be a system-wide occurrence that requires evaluation of all procedures throughout the facility.