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Handling Precautions
PVC Chemical Resistance Data


Using the hose Storage Precautions
Applying the connecting fixture Food Sanitation Act
Preventive Inspection


The hose is greatly affected by ambient and fluid temperatures. Select the right hose that is best suited for those temperatures.
1. Use the hose within its specified operating temperature range and below its maximum operating pressure.
2. Avoid using the hose at its upper limits if the fluid (chemicals, acid and alkaline solutions, oils and paints) might be harder or swell the hose violently. Consult us in advance if you handle toxic chemicals, high-temperature acid or alkaline solution or the like.
3. On using the hose in a coating line, select the electro-conductive air hose "PAINT HOSE PB TYPE" (with a grounding wire) to prevent static-caused fire and other hazards.
Do not bend the hose more than its minimum bending radius. Otherwise the hose may get degraded and shorten its service life. If you do not see the hose's minimum bending radius in the product catalog or handling instructions, contact us.
Keep the following points in mind when connecting the hose.
1. The hose expands and shrinks under an internal pressure. Give it some safety allowance.
2. Be careful not to extremely bend the hose close to its connecting fixture. The hose may get degraded earlier.
3. Be careful not to give the hose an impact and let any vehicle or anything heavy roll over the hose. If the hose may touch a metallic, concrete and other hard edge or may come in contact with anything else by vibrations or bending, protect it with cushion, tube, cover, wire, spring or the like.
If the hose is applied for a vibrating or shock-prone system, avoid using it at its upper operating pressure limit.
Before each use, make sure the hose is not twisted nor broken.
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1. When inserting the fixture's coupler, do not apply oil and fat to the hose and the coupler, nor warm them direct over a flame. If it is hard to insert, warm the hose in lukewarm water and insert the fixture.
2. Select the right fixture that fits the hose. Insert the coupler fully into the hose.
3. Tighten the fixture at the center of the coupler to its specified torque. Bear in mind that the hose may get somewhat soft at high temperatures.
4. Do not overtighten the hose using a steel wire instead of the specified hose band, nor hit the hose band hard with a hammer or the like, nor use a scratched or rusty fixture. The hose may get damaged, causing a rupture.
5. Even with the fixture properly connected, the plastic part may suffer permanent distortion, which may cause fluid leak, fixture come-off or hose rupture. For the correct type of fixture and the materials and characteristics of the hose, contact us.
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1. Before daily use, be sure to look at the hose carefully for anything unusual.
2. Be sure to fully inspect the hose once a month.
3. If any of the following problems is encountered at daily or periodic inspection, immediately stop using the hose and replace it with new one.
  1. Local elongation, swell, bend or fluid leak at and around the metallic part
2. Scratches, cracks, water seepage into the reinforcement
3. Separation between the inner and outer tubes
4. Noticeable degradation ( hardening, cracks, swelling, etc. )
5. Stickiness
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After use, remove all residues off the hose, wash it with water, and store it in a well-ventilated place where the hose is not exposed to direct sunlight. Do not store the hose extremely bent, piled up or under something heavy.
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1. Notification No. 370 of the Welfare Ministry gives the Food Sanitation Act and the food additives standards, whereas Notification No. 20 specifies the requirements of safety tests of synthetic resin-made utensils and containers. These notifications, however, do not stipulate any criteria of odor and smells which may be different from person to person.
2. For applications in the food industry, contact us beforehand.
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