7
Stop
valve
Stop
valve
By-pass valve
Stop
valve
Trap
Trap
Stop
valve
By-pass valve
Description
Correct
Incorrect
End portion of discharge pipe
shall be off the water surface in
the pit.
* If the discharge pipe is in contact
with the water, it absorbs dirty
water in the pit and causes
malfunction of the product.
Provide a by-pass line around
the product, and install stop
valves at the outlet side of the
product.
7.2 Precaution for installation
Caution
1.
Before connecting the product to piping, remove foreign substances and scale from the piping.
*
Failure to follow this notice may prevent the product from functioning properly.
* To plumb the product, be careful to keep seal materials from entering into the product.
2.
To install the product, check the direction of the product so that the fluid flowing and the arrow marked
on the product are in the same direction.
* Setting the product in wrong directions prevents it from functioning properly
.
3.
Do not apply excessive load, torque or vibration to the valve.
*
Doing so may result in malfunction or drastically shortened service life.