| 摘要 |
<p>A postmix valve for a beverage dispenser, including a volumetric ratio control device (48) incorporated therein to provide positive ratio control. The device includes a syrup piston (40) and a soda piston (42) linked together, syrup (44) and soda (46) chambers, and valve means for controlling the flow to and from the chambers. The soda pressure drives the pistons. The valve means include four 3-way poppet valves (92, 94, 96, 98). This valve can be used with any of a figal, a bag-in-box, a gravity tank, or a non-returnable container under no pressure or under a low pressure of 5 to 10 psig. <IMAGE></p> |
