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Yoshitake TA-22ML Product Manual

Float vent valve
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Thank you very much for choosing the Yoshitake's product. To ensure the correct and safe use of the
product, please read this manual before use. This manual shall be kept with care for future references.
The symbols used in this manual have the following meanings.
Warning
Caution
1. Usage of the product ·················································· 1
2. Specifications and Capacities ······································· 1
3. Dimensions and Weights ············································· 3
4. Operation ································································· 4
5. Maintenance and Inspection ········································ 5
6. Exploded view ··························································· 8
MODEL TA-22ML
FLOAT VENT VALVE
PRODUCT MANUAL
This symbol indicates a potentially hazardous situation that, if not avoided,
could result in death or serious injury.
This symbol indicates a hazardous situation that, if not avoided, may result in
minor or moderate injury or may result in only property damage.
5.1 Precaution before use ··········································· 5
5.2 Precaution for use ················································ 6
5.3 Piping example ···················································· 6
5.4 Troubleshooting ··················································· 7
5.5 Precaution for maintenance ···································· 7

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■EPDT-273■

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Summary of Contents for Yoshitake TA-22ML

  • Page 1: Table Of Contents

    FLOAT VENT VALVE PRODUCT MANUAL Thank you very much for choosing the Yoshitake’s product. To ensure the correct and safe use of the product, please read this manual before use. This manual shall be kept with care for future references.

  • Page 2: Usage Of The Product

    Float vent valve removes air inside piping and prevents decrease of heat efficiency, noise production or corrosion of equipment piping by commingling of air, etc. TA-22ML float vent is compact float type, discharges air automatically without any manual operation. 2. Specifications and Capacities...
  • Page 3 Exhaust capacity chart Working pressure MPa ■EPDT-273■...

  • Page 4: Dimensions And Weights

    3. Dimensions and Weights (mm) Weight Size ｄ Ｄ (kg) 15A R 1/2 95.5 0.36 20A R 3/4 25A R 1 0.46 ■EPDT-273■...

  • Page 5: Operation

    4. Operation After installation, air exists in the product, and float [11] is lowered by its own weight. In this condition, since valve [8] is kept open by lever [7], air is discharged outside by internal pressure of the system. When air is discharged, hot or cold water flows into the product to make float [11] come up on buoyancy and force that keeps valve [8] open through lever [7] is lost.

  • Page 6: Maintenance And Inspection

    5. Maintenance and inspection 5.1 Precaution before use Caution 1. After tightening elbow cap, be sure to attach hose to the product, and lead it to drain ditch (see Fig. 1). In addition, after attaching hose, fix the hose to avoid loosening of elbow cap. * When foreign substance such as dust adheres to valve with elbow cap loosened and valve leakage occurs, water may leak from around elbow cap to outside.

  • Page 7: Precaution For Use

    10. Since elbow cap is made of resin, it is treated as consumable supply. 11. For brass parts, corrosion is generated or accelerated by water quality, and leads to malfunction of the product. For surroundings where corrosion can be generated, please select the product with enduring parts such as stainless steel material.

  • Page 8: Troubleshooting

    5.4 Troubleshooting Trouble Cause Remedy Water leakage 1. Foreign substance such as dust 1. By removing valve seat part with spanner, occurs adheres to valve and valve seat. seal surface of valve and valve seat can be cleaned. Clean off scale and dust adhering to valve and valve seat with waste cloth, and after cleaning, apply O ring (S9) to ditch of valve seat and screw it, then tighten it...

  • Page 9: Exploded View

    6. Exploded View *Elbow cap is made of resin, it is treated as consumable supply. Elbow cap Stopper Valve seat O ring Valve Guide Body ■EPDT-273■...

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