MAXIMUM WORKING PRESSURE AND TEST PRESSURE

There is some misunderstanding of maximum working pressure and test pressure among some pump users
a) DIN 24255 pump do specify Maximum Hyrdostatic Test Pressure of 24 bar , note this is test
pressure done hydrostatically and not operating condition

b) Maximum Working Pressure at 16 bar at maximum speed of 3600 rpm ( 60 hz 2 pole )
In Malaysia ,it is 50 hz 2 pole ,which is 2900 rpm

Therefore .again specify the operating head rather than maximum 16 bar as what we
encounter this morning

Customer wants a pump maximum 16 bar but for circulating purpose only which we reckon that then system head to be only about 3 bar or 30 M
And flow . 350 m3/hr at 16 bar ?

Big motor kw is required for this duty