Dairies typically apply heat to raw milk. They use high-temperature/short time, higher-heat/shorter time or ultra-high temperature pasteurization. There are alternatives to heat-based pasteurization, such as applying high pressure or using UV light.
Waukesha Cherry-Burrell has developed an advanced PMO design to maximize production time and cleaning flexibility. The W75CP is a double-seat PMO mix proof valve for dairy applications suitable for safe separation of product from CIP solution including single seat-lift operation.
For the U.S. Dairy Industry and users of dairy ingredients, changes to the Pasteurized Milk Ordinance (PMO) regulations in March 2007 allowed seat-lift cleaning of Mix Proof valves while milk or milk products were in the opposite housing.