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EPDT-002g
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4.2 Precaution during installation and inspection
Caution
1. 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.
*
Wrong direction prevents fluid from flowing.
2. Please support the piping and fix on the products securely.
* The product may be deformed by too much stress from the piping.
3. During installation, please secure enough space as shown in <4.1 Example of piping <Figure 2>>for
maintenance and inspection (including cleaning of the screen).
* Unable to do the maintenance (including cleaning of the screen) or inspection of the products without
sufficient space.
4. Upon installing the product, please make sure that unnatural force, bending, or vibration will not be
transmitted to the products.
* Inadequate piping may result in leakage
5. Make sure to install the products firmly to the piping.
*Insufficient piping may cause physical damage by fluid outflow due to vibration.
6. If component having negative effect on inner part is included in fluid and environment, deterioration of
rubber parts is accelerated and lead to leakage and malfunction.
7. Impact by rapid pressure change, such as water hammer may cause damage to the products or parts.
8 If fluid cannot flow due to closed piping situation of the products, fluid temperature rise expands volume
of fluid in the piping and damages the products.
9 If the fluids are retained inside the products for long period of time, the sliding parts will stick and cause
malfunction.
10. Fluid with viscosity stick the parts and lead to malfunction of the products.
11. Before
connecting the product in the piping, be sure to remove foreign substances and scale from the
piping such as scale and seal tape, etc.
*
Failure to follow this notice causes leakage due to the ingress of foreign substances and scale into the
product.
12. Consider usage condition (Usage frequency or durability) when selection.
1. Installing pressure gauges at inlet and outlet side may help to detect the clogging condition of the screen
(4.1 example of piping<Figure 3>).
2. When using at outdoor, rust prevention painting is required to avoid from the rust.
5. Operation
5.1 Warning and caution upon operation
Warning
1. Please make sure that there is no danger at the pipe end before use.
*You may get scalded in case hot fluid spouts out.
*Physical damage may occur from fluid outflow.
Caution
1. Use the strainer in condition of maximum pressure loss of below 0.1MPa. Also
keep cleaning the screen periodically.
*The scree may be damaged.
2. Always follow the sequence when switching the cock.
*The product may not work property. <5.2 Refer to operation method reference>
3. There are some allowable leakages from the cock, so when cleaning the screen,
please take off the plug under the screen case, and install the blow valve to release
the fluid to the safe place.
1. When cock and adjusting screw are stuck and they turn at the same time, please fix the cock with wrench
and turn the adjusting screw.
*If they turn together, the strainer may not obtain the proper pressure drop or filtration ability.
2. Do not tighten the adjusting screw with excessive torque.
*It may cause the breakage on cock and adjusting screw.
