Table of Contents
Advertisement
4. Install a safety relief valve at the outlet side of the product for protection of equipment at outlet side.
* Failure to follow this notice may result in damage of the equipment.
5. Be sure to install pressure gauges at the inlet and outlet sides of the product.
* Failure to follow this notice hampers correct pressure adjustment.
6. If a quick operating valve such as a solenoid valve is installed, place it at a distance of at least 3
meters from the product.
* Failure to follow this notice may result in malfunction or a drastically shortened service life of the
product.
7. For two-stage pressure reduction, keep a distance of at least 3 meters between each product.
* Failure to follow this notice may prevent the product from functioning properly due to malfunction.
8. Install the product properly by checking the inlet, outlet and in proper posture.
* Installing the product in wrong directions prevents the product from functioning properly.
9. Install pipes so that excessive load, torque or vibration is not applied to the product.
10. On water pressure test for inlet side piping of the product, close stop valve at inlet side of the product or
switch the product function to stop function before the test. On water pressure test for outlet side
piping of the product, switch the product function to stop function before the test.
11. Install stop valve at inlet side of the product since stop valve is necessary for strainer cleaning or
pressure control at by-pass function.
12. The product can be installed either horizontally or vertically (For 100A, horizontal installation only).
13. Secure enough space for function switching operation. For disassembly and inspection, space more
than the space indicated by H
Nominal size
and H
below is needed.
3
4
20A
25A
H
160
160
3
H
260
260
4
32A
40A
50A
65A
170
170
190
200
320
320
330
440
9
(mm)
80A
100A
210
230
460
550
EPDT-278
Advertisement
Table of Contents
