Nebraska Administrative Code
Topic - ENVIRONMENT AND ENERGY
Title 195 - CHEMIGATION REGULATIONS
Chapter 3 - EQUIPMENT; STANDARDS, INSTALLATION, MAINTENANCE
Section 195-3-008
Current through March 20, 2024
Replacement equipment is to meet the requirements of this Chapter, and in the case of irrigation pipeline check valves, will meet the following minimum requirements:
008.01 The valve body and all components will be constructed of corrosion resistant materials or otherwise coated or protected to prevent corrosion;
008.02 The valve will contain a sealing mechanism designed to close prior to or at the moment water ceases to flow in the downstream direction. This mechanism will be either diaphragm-actuated by hydraulic line pressure, spring loaded or weight loaded to provide a watertight seal against reverse flow;
008.03 The valve will be designed to meet the leakage tests specified in Underwriters Laboratory, Inc., Standard UL 312, Chapter 16, Leakage Test, page 11, dated May 22, 1984. (Appendix I).
008.04 All moving components of the valve will be designed to prevent binding, distortion or misalignment during water flow; and
008.05 The valve will be designed to allow for easy repair and maintenance, including removal from the pipeline if required to perform such work.
