Nebraska Administrative Code
Topic - LABOR, DEPARTMENT OF
Title 229 - DEPARTMENT OF LABOR
Chapter 20 - POWER BOILERS - NEW INSTALLATIONS
Section 229-20-005

No valves of any type shall be placed between the safety valve and the power boiler. If a discharge pipe is used, no valve shall be placed on the discharge pipe between the safety valve and the atmosphere. The discharge pipe shall be at least the full size of the safety valve discharge and fitted with an open drain to prevent water lodging in the upper part of the safety valve or discharge pipe. The discharge pipe shall be as short and straight as possible and so arranged as to avoid undue stress on the valve or valves. All safety valve discharges shall be so located or piped as to be carried away from walkways or platforms.