PA-50 Series  is a panel type area flow meter which can adjust the desired value of flow rate with a needle valve by combining a diaphragm adjusting valve with PA Series. One feature is that If the flow rate is fixed, it does not change from the fixed value even though the pressure changes on the primary side.

This is suitable for measurement of both liquids and gases, simple in structure, apparently compact in design to well match with various devices and facilities. Also, this product is widely used at general industrial sites because it can be easily installed and repaired and it can be manufactured with alarm switch added as option.

The connection has pipe thread and when attached onto the panel, external thread of the connection is used.​