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172-65168MA-04  (SA3)    1  Oct  2021

 

6

 

Installation 

 

 

DO NOT use for toxic, flammable or otherwise hazardous fluids.

 

This product is an air vent that discharges air from water piping system.  

Use only for water and/or air.  This product is for intended use only.  

Improper use may result in such hazards as damage to the product or 

malfunctions that may lead to serious accident.

 

WARNING 

 

 

Install properly and DO NOT use this product outside the recommended 

operating pressure, temperature and other specification ranges. 

Improper use may result in such hazards as damage to the product or 

malfunctions which may lead to serious accidents. Local regulations 

may restrict the use of this product to below the conditions quoted.

 

CAUTION 

 

 

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 

 

 

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 other injury.

 

CAUTION 

 

Installation, inspection, maintenance, repairs, disassembly, adjustment and valve 
opening/closing should be carried out only by trained maintenance personnel. 

1.  Before installation, be sure to remove all protective seals. 

2.  Before installing the product, open the inlet valve and blow 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 piping.   

5.  To prepare for the unlikely event of a water leak, be sure to run the vinyl tube 

installed on the outlet to a catch pan or a drain pipe. Make sure the end of the pipe 
is above the waterline, so that dirt and water can not be sucked up by vacuum when 
the system shuts down (Figure 1). 

6.  Inlet piping with no horizontal portion is recommended for water/air displacement. If 

there is a horizontal portion, make the pipe diameter of the horizontal portion larger 
than the vertical portion or make the horizontal portion as short as possible.   

7.  Make sure the inlet piping diameter is at least as large as the product

s inlet diameter. 

8.  Installation of an isolation valve just before the product

s main connection is 

recommended as it enables maintenance during operation. A full-bore ball valve 
is recommended. 

9.  Make sure to take measures to prevent foreign matter from flowing into the product. 

If there is a problem, determine the cause using the 

“Troubleshooting” section in 

this manual. 

Figure 1      Sample Installation 

Direction of Water Flow

Vinyl Tube

TLV Y3 Strainer

TLV Micro Air Vent

SA3

Full Bore
Ball Valve

 

    Figure 2      Tolerance Angle for Installation: 5

 

 

 

Summary of Contents for SA3

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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