Designed for use as additional safety relief valves in small above-ground and underground ASME tanks. Can also be used as primary or secondary relief device in DOT tanks or as hydrostatic relief valves. All functional components of such safety valves are outside the tank connection, therefore it is necessary to protect the valves from physical damage.
| Housing: | Brass |
| Spring: | Stainless steel |
| Saddle disc: | Elastic rubber |