Description: Measured gap flow between pump casing and impeller; Name: flow of clearance
Description: measured clearance flow between the housing and the impeller; Name: clearance flow
Description: norm/stipulation describing the explosion protection. The explosion protection type, the device category, the temperature class as well as the device / explosion group are taken from this norm. The type and number of the norm/stipulation with issue year and issue month must be given; Name: Reference norm of the explosion protection