Used for the separation of dissimilar products, the D4 Series helps maximize productivity and provide reduced product and personnel risk across the food and beverage, dairy, personal care and brewing process industries. The valves are fully balanced for dependable operation against pressure spikes and flow in any direction. An optional control unit provides integrated seat-lift detection without external sensors. The downward-opening valves ease handling and weigh less than similar valves, says the manufacturer. The same seal kit is used across multiple valve sizes. An ultra-hygienic model is suited for critical applications requiring enhanced cleanability of all product-contact surfaces.