WAC 296-826-50035   Portable DOT containers.  

     IMPORTANT:

     • This section applies to systems that use cylinders, portable tanks (DOT-51), or ton containers (DOT-106A, DOT-110A).

     • In addition to this section, you need to follow the Appurtenances requirements for all systems, WAC 296-826-50005.

     You must:

     • Make sure safety relief devices meet DOT specifications.

     • Provide the following protection:

     – To valves and pressure regulating equipment from tampering once installed for use

     – To containers:

     ▪ From heat sources such as radiant flame and steam pipes. Do not apply heat directly to containers to raise the pressure

     ▪ From moving vehicles or external damage while being stored

     ▪ From ignitable debris and to prevent external corrosion while being stored. Storage can be indoors or outdoors.

     • Protect container valves while in transit, in storage, and while being moved into final use by doing either of the following:

     – Setting them into the recess of the container;

     OR

     – By fastening a ventilated cap or collar to the container that can withstand a blow from any direction equivalent to a thirty-pound weight being dropped four feet

     ▪ Construction should be such that a blow will not be transmitted to the valves or other connections.

     • Keep outlet valves tightly closed when containers are not connected for service on all empty or loaded containers

     – Secure the valve protection cap, if the container is designed for one, when the container is not in service.



[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. 06-10-067, § 296-826-50035, filed 5/2/06, effective 9/1/06.]