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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. Dimension and weight ················································· 2
3. Operational description ··············································· 3
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
After Sales Service
MODEL TA-18ML
AIR VENT VALVE
PRODUCT MANUAL
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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.
Table of Contents
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EPDT-308a
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Summary of Contents for Yoshitake TA-18ML
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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 Application Cold and hot water Working pressure 0.01-0.3 MPa Maximum temperature 100°C Body, cover Stainless steel Disc FKM (fluororubber) Material Float Heat-resistance plastic Guide Brass Inlet JIS R1/8 JIS R3/8 JIS R1/2 JIS R3/4 Connection Hose joint Φ6 Outlet... -
Page 3: Dimension And Weight
2. Dimensions and Weights label (mm) Nominal Weight (Width Size (kg) across flat) R 1/8 0.12 R 3/8 0.13 R 1/2 0.13 R 3/4 0.13 EPDT-308a... -
Page 4: Operational Description
3. Operational description After the installation, air exists in the product, and the float [10] is lowered by its own weight. In this condition, since the valve disc [6] is kept open by the lever [4], air is discharged outside by the internal pressure of the system. -
Page 5: Installation
4. Installation 4.1 Piping example Convector Float vent Base board heater Relief valve Pressure Air out reducing valve Boiler Pump Using this product as a combination with Air Out (Air separator from water) type AO-2, it make efficiency of air discharge higher. 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.
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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. Follow the designated working pressure and Max. temperature. *Failure to follow this may result in malfunction. -
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 Cap stopper Valve Seat O Ring Valve disc 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. EPDT-308a... - 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...