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172-65168MA-04  (SA3)    1  Oct  2021

 

7

 

Maintenance 

 

 

Take measures to prevent people from coming into direct contact with 

product outlets. Failure to do so may result in burns or other injury from 

the discharge of fluids.

 

CAUTION 

 

 

Be sure to use only the recommended components when repairing the 

product, and NEVER attempt to modify the product in any way. Failure to 

observe these precautions may result in damage to the product or burns 

or other injury due to malfunction or the discharge of fluids.

 

CAUTION 

 

Operational Check 

A visual inspection of the following items should be done on a daily basis to 
determine whether the air vent is operating properly or has failed.   
If the air vent should fail, it may cause water leakage or hindrance to water flow. 

Normal                                                 

: Air is discharged as it accumulates, with the air vent 

closing (with no leakage) when no air is present in the 
piping 

Blocked                                         
(Discharge Impossible) 

: No air is discharged though air accumulates in the air 

vent 

Leakage   

: Water is discharged or leaks through the air vent outlet 

during closed position 

Parts Inspection 

When parts have been removed, or during periodic inspections, use the following 
table to inspect the parts and replace any that are found to be defective. 

Procedure 

Body Gasket, O-ring 

: Check for warping and damage 

Valve, Valve Seat 

: Check for scratches or wear 

 

Содержание SA3

Страница 1: ...172 65168MA 04 SA3 1 October 2021 Micro Air Vent SA3 Copyright 2021 by TLV CO LTD All rights reserved ...

Страница 2: ...e use and follow the instructions to be sure of using the product properly This micro air vent is designed to automatically discharge release gases such as air trapped in water carrying pipes during water transport It also automatically discharges the air that was entrained in the water during operation and has subsequently been separated and collected in specific locations in the piping If detail...

Страница 3: ...mbols Indicates a DANGER WARNING or CAUTION item DANGER Indicates an urgent situation which poses a threat of death or serious injury WARNING Indicates that there is a potential threat of death or serious injury CAUTION Indicates that there is a possibility of injury or equipment product damage WARNING DO NOT use for toxic flammable or otherwise hazardous fluids This product is an air vent that di...

Страница 4: ...mended components when repairing the product and NEVER attempt to modify the product in any way Failure to observe these precautions may result in damage to the product and burns or other injury due to malfunction or the discharge of fluids Do not use excessive force when connecting threaded pipes to the product Over tightening may cause breakage leading to fluid discharge which may cause burns or...

Страница 5: ...the rapid discharge of initial air 2 When initial air has been completely discharged the water level rises in the body This causes the float to rise closing the valve The coil spring pushes the valve against the valve seat keeping the valve closed providing a tight seal 3 When air enters the water level falls lowering the float This causes the valve to open and air to be automatically discharged t...

Страница 6: ... product in excess of the maximum operating pressure differential such use could make discharge impossible blocked CAUTION Use only under conditions in which no freeze up will occur Freezing may damage the product leading to fluid discharge which may cause burns or other injury CAUTION Model Maximum Operating Pressure PMO Minimum Operating Pressure Maximum Operating Temperature TMO Maximum Allowab...

Страница 7: ...out the piping to remove any piping scraps dirt and oil Close the inlet valve after blowdown 3 This product must be installed vertically with the inlet at the bottom and the outlet at the side This product must be installed within the allowable angles of inclination of 5 vertically and front to back Figure 2 4 Install the product in a location where air is likely to collect such as a bend in the p...

Страница 8: ...s should be done on a daily basis to determine whether the air vent is operating properly or has failed If the air vent should fail it may cause water leakage or hindrance to water flow Normal Air is discharged as it accumulates with the air vent closing with no leakage when no air is present in the piping Blocked Discharge Impossible No air is discharged though air accumulates in the air vent Lea...

Страница 9: ...the proper torque Body Gasket Remove the gasket Replace with a new gasket Siphon Rod Remove the siphon rod Attach the siphon rod to the base Vinyl Tube Worm Drive Clamp Clamp Screw Loosen the clamp screw with a Phillips screwdriver and remove the worm drive clamp remove the vinyl tube from the valve seat Reattach the vinyl tube to the valve seat reattach the worm drive clamp and then tighten the c...

Страница 10: ...gged Clean the valve seat The inlet or outlet piping is clogged Clean the piping The operating pressure exceeds the rated maximum operating pressure Replace the air vent with a model of suitable operating pressure Liquid leaks when the valve is closed The valve seat is clogged with dirt or scale or is damaged Clean the valve seat or replace it with a new valve seat Improper installation Correct th...

Страница 11: ...he control of TLV TII or TLV group companies or 6 improper storage maintenance or repair or 7 operation of the Products not in accordance with instructions issued with the Products or with accepted industry practices or 8 use for a purpose or in a manner for which the Products were not intended or 9 use of the Products in a manner inconsistent with the Specifications or 10 use of the Products with...

Страница 12: ...LY AND SHIPMENT OF THE DEFECTIVE PRODUCT INJURY TO OTHER PROPERTY DAMAGE TO BUYER S OR THE FIRST END USER S PRODUCT DAMAGE TO BUYER S OR THE FIRST END USER S PROCESSES LOSS OF USE OR OTHER COMMERCIAL LOSSES WHERE DUE TO OPERATION OF LAW CONSEQUENTIAL AND INCIDENTAL DAMAGES UNDER THIS WARRANTY UNDER ANY OTHER EXPRESS WARRANTY NOT NEGATED HEREBY OR UNDER ANY IMPLIED WARRANTY NOT NEGATED HEREBY INCLU...

Страница 13: ...d Nunawading Victoria 3131 Australia Tel Fax 61 0 3 9873 5610 61 0 3 9873 5010 In East Asia 36 Kaki Bukit Place 02 01 02 Singapore 416214 Tel Fax 65 6747 4600 65 6742 0345 Room 5406 No 103 Cao Bao Road Shanghai China 200233 Tel Fax 86 0 21 6482 8622 86 0 21 6482 8623 No 16 Jalan MJ14 Taman Industri Meranti Jaya 47120 Puchong Selangor Malaysia Tel Fax 60 3 8065 2928 60 3 8065 2923 252 94 K L 17th F...

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