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1. Before installing the product, remove foreign substances and scale from the piping.
* Failure to follow this notice may hamper proper operation.
2. When installing the product, match the direction of fluid flow with the inlet and outlet of the
product respectively.
* Failure to follow this notice prevents the product from functioning properly.
3. Please do pipe properly that is not given the excessive load, bending and vibration to the
product.
* There is a possibility of the malfunction, and the life time of the product is significantly shorter.
4. Inner diameter of pipe mount and exhaust pipe must be equal to or more than those of each
inlet and outlet of the product.
* Failure to follow this notice may result in malfunction or insufficient amount of blowout.
5. There is no problem with this product becoming wet by rain water. However, if this product gets
wetted by water all time, consider installation place to keep from water.
6. Connect the product to the pipes securely.
* Improper connecting may cause fluid leakage from the piping joint when vibration is applied, or
may cause scalds in case that fluid is hot.
7. Lead exhaust pipe to outside of buildings if there is a risk that fluid blowout causes alarm activation
or contamination of the peripheral equipment.
* Improper placement may cause contamination of the peripheral equipment.
8. If there is a risk that condensate or rain water accumulates in exhaust pipe, attach drain pipe with
the product and/or the exhaust pipe in a position where they can be drained.
* Failure to follow this notice may cause rust and result in malfunction.
9. Do not conduct piping with dissimilar metal provoking potential difference. Failure to follow this
instruction result in galvanic corrosion of this product or parts.
10. Pipe mount of safety valve should have sufficient strength and rigidity against compression,
shear stress and bending stress caused by reaction force because the pipe amount is subject to
the reaction which is caused along the center line of a blowout pipe connected to the safety valve
in the direction contrary to the discharging direction.
11. Please install the safety valve whose valve spindle shaft is vertically, and it should be mounted
directly to the vessel as much as possible. In addition, please install it to the place where can do
maintenance and inspection easily.
12. When installing an exhaust pipe, the inner diameter of an exhaust pipe should be as larger
possible than that of an outlet pipe of a safety valve and not to have an undue back pressure (It
does not exceed 10% of the blowout pressure).
Caution
-4-
■EPDT-072ｊ■
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