The product is characterized by simple operation, convenient maintenance, stable lifting pressure, fine adjustment of large range, push-pull pressure, remote metering and verification, and minimum controllable fineness. It integrates positive and negative pressure forming, and is convenient for positive and negative pressure switching. It is a stable pressure source for pressure (differential pressure) transmitters, pressure sensors, pressure gauges and
other pressure instruments.
2、Minimum controllable adjustment：0.1Pa 3、Size：220mm×220mm× 120mm
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