The 362 Series is a three-way valve made for single-acting process valve applications, while the 562 Series is a four-way spool valve designed for double-acting process valves. The valves' high flow ...
The agency's March 13 order gives owners 60 days to replace any 3-inch McKenzie UNNR ball valve in a tank car used to transport any hazardous material described in 49 CFR 172.101 and 90 days to remove ...