Milton Roy, a division of Hamilton Sundstrand, Ivyland, PA, has acquired YZ Industries in Texas. With this purchase, Milton Roy expands its product line to include sampling systems for natural gas, crude oil, and refinery products. YZ also engineers, manufactures, and markets its patented NJEX odorization systems for odorant injection along with a full line of Linc precision pneumatic and electric metering pumps and leveling switches.