DESIGN.。The 682 series piston flow meter is a true positive displacement flow meter that has an inline design consisting of three (3) reciprocating pistons operating within their respective measuring chambers, where each piston works in a manner similar to an automobile engine. The pistons are fitted to a wobble plate, which has a shaft extending from its upper surface and a valve pivot attached beneath it. The valve pivot drives a sliding valve from piston to piston as a known amount of product flows through each cylinder bore, controlling the sequence of events in a smooth mechanical motion.682系列活塞式流是一種真正的容積式流具有內嵌的包括三個3往復活塞在各的測室操作每個活塞在某種程度上類似于汽發動機工作的地方。活塞安在擺動板具有從其上延伸的和樞接在它的下。帶動滑動活塞活塞作為已知的產品流經各氣缸控制在一個平穩的機械動的事件序列。