The hydraulic pressure testing machine is to verify the pressure endured capability of ductile iron pipe, on which testing hydraulic pressure can be adjusted from 18 to 50 bar steplessly. The certain types of machine can be designed and manufactured for certain kinds of ductile iron pipe sizes, of which kinds of diameter sizes are DN100~DN300, DN350~700 and DN700~DN1000 and kinds of length sizes are 5m, 6m and 8m.

There are important outstanding features of these hydraulic pressure testing machines, described briefly as bellow:

•  proper to test various size of ductile iron pipes

•  End cover designed and adopted in the first in China

•  Good sealing performance depending on compensating pressure of free head

• Good durability of sealing ring due to proper material adopted

 Series of hydraulic pressure testing machine are proved to be in well working and can meet technique requirements of users through experiences.

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