（
1
）
Verify carefully in order to ensure that the usage of strainer matches with its performance specification.
（
2
）
Have to clear up inner parts of the strainer.
The strainer is applied by one direction and the flow direction of medium is founded by arrowhead on body.
Please pay attention to when you set up it.
The position of installation should make sure convenience of usage and maintenance.
Bolts connected with flanges must be screwed proportionally when strainer is connected in pipe.
For strainer of big size and heavy weight, support is needed in order to minish load for avoiding pipe’s bend.
On the process of the usage of strainer, workers should check periodically and clear up timely sundries and
dirty substances in screen for avoiding its damage.
1
Possible trouble, cause and removing method
Possible trouble
Cause
Removing method
Leak in body and cover
1. Bolts connected flanges are not tightened
tightened or not screwed evenly
2. Sealing gasket is damaged
1. Screwing the bolts tightly
2. Change sealing gasket
Leak by the connection
between strainer and pipe
Bolts used for connection is not screwed
evenly and tightly, gasket between
strainers and flanges is aging
Screwing the bolts evenly and
tightly, change gasket between
strainers and flanges
Not good quality
Screen is damaged
Change screen
Y-0121
