Text For Citation: 01 Item/Group: 001 Hazard: OTHER

Section 5(a)(1) of the Occupational Safety and Health Act of 1970: The %% employer did not furnish employment and a place of employment which were free from recognized hazards that were causing or likely to cause death or serious physical harm to employees in that employees were exposed to sudden and unexpected release of contents from a piping system containing steam at 175 psi located under the sawmill structure: a) Adequate drainage and warming of piping was not done to eliminate water hammer. b) Valve No. 5 (a 6 inch Cox gun valve) did not meet the requirements of the ASME standard for power piping (ANSI B31.1.0-1967) on that it was not marked with the manufacturer's primary service pressure rating and in that it was used for pressures exceeding that recommended by the manufacturer. c) The steam supply system incorporated a receiver which was not designed, fabricated, and tested in accordance with requirements of the ASME Boiler and Pressure Vessel Code and did not have a pressure relief valve and guage. d) Welding procedures used on the flange and ell at the 6 inch Cox valve No. 5 did not comply with the requirements of the ASME Boiler and Pressure Vessel Code (Section IX). Among other methods, one feasible and acceptable way to correct these hazards are: To install a regulator in the line to maintain steam pressure at rate recommended by manufacturer. Install an acceptable receiver that has been properly designed, tested and had pressure relief valves and pressure gauges in accordance with the ASME Boiler and Pressure Vessel Code. To avoid welding of all cast iron under pressure.