Specifications include, but are not limited to: The purpose of this document is to provide interested parties with information to prepare and submit a bid providing annual Boiler and Deaerator safety valve testing in accordance with the ASME Boiler and Pressure Vessel Code, the National Board Inspection Code, and Wisconsin DSPS Chapter SPS 341, Boiler and Pressure Vessels at State operated central heating plants. A. Visual inspection of PRD shall verify or check the following: • The correct relief valve was installed. Compare the device nameplate set pressure with the boiler or pressure vessel maximum allowable working pressure (MAWP) and ensure the device set pressure does not exceed the MAWP. A device with a set pressure less than MAWP is acceptable. If multiple devices are used, at least one must have a set pressure equal to or less than the MAWP. The ASME Code should be reviewed for other conditions relating to the use of multiple valves. • The identification (such as a tag or stencil) which establishes the last test date and proper pressure setting for the equipment protected by the identified valve. • No gags, blinds, closed valves, or piping obstructions would prevent the valves from functioning properly. Upstream and downstream block valves, when installed, are sealed or chained and locked in the open position. • Seals installed to protect the spring setting and ring pin setting have not been broken. • The relief valve does not leak. Pressure-relief valves that have been opened in service frequently leak. Detection and correction of this leakage eliminates product loss and possible pollution and prevents fouling and subsequent sticking of the valve. • Vent stacks, discharge piping and small nipples are properly supported to avoid breakage or leakage. Inadequately supported or anchored nipples can be damaged during maintenance and by vibration. • Discharge piping is orientated such that injury and damage will not occur during discharge. • Valve body drains and vent stack drains are open. • Any lifting lever is operable and positioned properly. • Any heat tracing or insulation that is critical to the proper operation of the relief system is intact and operating properly.