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Yoshitake TA-22ML Manual

Air 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. Specifications and Capacities ······································· 1
2. Dimensions and Weights ············································· 2
3. Operational description ··············································· 3
After Sales Service
MODEL TA-22ML
AIR 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.
4.1 Piping example ···················································· 4
4.2 Warning and Caution before use··························· 4-5
5.1 Warning and Caution for use ·································· 6
6.2 Daily and Periodic inspection ·································· 7
6.3 Troubleshooting ··················································· 8
6.4 Disassembly ······················································· 8
6.5 Exploded view ····················································· 9

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■EPDT-273b■

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Summary of Contents for Yoshitake TA-22ML

  • Page 1: Table Of Contents

    AIR 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: Specifications And Capacities

    1. Specifications and Capacities Nominal size 15-25A Application Cold and hot water Working pressure 0.01-1.0 MPa Maximum temperature 100°C Body, cover Bronze Material Disc Synthetic rubber Float High temperature resin Inlet JIS R screwed Connection Outlet Hose fitting (Φ6) Coating Nickel coating Please confirm that the indications on the product correspond with the specifications Caution...

  • Page 3: Dimensions And Weights

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

  • Page 4: Operational Description

    3. Operational description 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 5: Installation

    4. Installation 4.1 Piping example Convector Float vent Home boiler Base board heater relief valve Air out PRV for water Boiler Circulation pump If using the product with AO-2 air out (air separator), higher performance can be obtained. 4.2 Warning and Caution before use Warning 1.
  • Page 6 Caution 1. Install the product to a place where check and handle can be done easily in aim of tightening the elbow cap when leakage happens. *Leakage of liquid result in burns for high-temperature fluid or cause bodily injury or damage to the property when valve leakage happens.

  • Page 7: Operation

    5. Operation 5.1 Warning and Caution for use Do not touch the product with bare hands in case of high-temperature fluid. Warning * Failure to follow this notice may result in burns. Caution 1. Do not use the product over working pressure range or over maximum working temperature. *Failure to follow this notice damages the product or leads to air exhaust defect.

  • Page 8: Daily And Periodic Inspection

    6.2 Daily and Periodic inspection Please carry out daily and periodic inspections to maintain product functionality and performance. ● （1time/day） Daily inspection item How to inspect actions to be taken Working state Make sure the air is See 6.3 Troubleshooting. venting.（However, the valve is closed when there is no air inside.）...

  • Page 9: Troubleshooting

    6.3 Troubleshooting Trouble Cause Remedy No air discharge 1. It is difficult for air to accumulate. 1. Install it in a place where air tends to accumulate. 2. Internal piping pressure is more than 2. Lower the internal piping pressure, or the appropriate value.

  • Page 10: Exploded View

    6.5 Exploded view *Elbow cap is made of resin, it is treated as consumable supply. Elbow cap * Stopper * Valve seat O ring * Valve Guide Cover Body Parts marked with an asterisk (*) are consumable parts. Caution Cover cannot be removed. *If removed, the function and performance of the product cannot be maintained.
  • Page 11 Fire, flood, earthquake, thunder and other natural disasters. Consumable parts such as O-ring, gasket, diaphragm and etc. Yoshitake is not liable for any damage or loss caused by malfunction or defect of the product. INTERNATIONAL DEPT. 955-5, Miyamae, Irukadeshinden, Komaki, Aichi, 485-0084, Japan...

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