Installation Requirements of Valve
DBV,
as valve manufacturer, tells the installation requirements of valve in this
paper.
Before being installed, the valve should be done pressure
testing. In the test, we should check out 10% of each batch products(same
specifications, same brand and same type), and no less than 1 piece. If there
are substandard products, such as leaks and cracks , then check 20%. If there
are still unqualified products, each valve should be
tested or all are returned.
For the closed-circuit
valves, which are installed at the main pipe as the role of cut off, they should
be done shell testing and seal testing one by one. And the pressure of shell testing and seal testing both
should meet the design requirements and factory regulations. After passing the
tests, valves are allowed to be installed in the project. In the installation,
people should ensure that the valves are at the correct positions and
characterized by correct direction of imports and exports, firm and tight
connection, flexible opening and reasonable orientation. After installation, it
should be ensured that the valve is clean. And the position without paint should
be completed.
Hope
DBV has opportunity to supply you ball valve, butterfly valve, gate valve,
globe valve or check valve.
If any interest, welcome to visit DBV's web.:www.dbvvalve.com ,
回复删除or directly email to joizie.jiang@dbvvalve.com .