Valves are rated for temperatures ranging from -40 to 212°F (-40 to 100°C). All parts are made from noncorrosive or protected material to withstand outdoor exposure on external surfaces and hot transformer oil on internal surfaces. According to the company, the valves have a robust design so that overtightening or minor abuse encountered in handling or during factory/field installation will not result in valve malfunction. The fasteners are designed to prevent loosening under normal operating conditions.
Unifin International, (888) 451-0310