TLV SA3 User manual

172-65168MA-04 (SA3) 1 October 2021
Micro Air Vent
SA3
Copyright © 2021 by TLV CO., LTD.
All rights reserved

172-65168MA-04 (SA3) 1 Oct 2021
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Contents
Introduction .......................................................................1
Safety Considerations.......................................................2
Feature..............................................................................4
Operation ..........................................................................4
Specifications....................................................................5
Configuration.....................................................................5
Installation.........................................................................6
Maintenance......................................................................7
Disassembly/Reassembly.................................................8
Troubleshooting ................................................................9
TLV EXPRESS LIMITED WARRANTY...........................10
Service ............................................................................12
Introduction
Thank you for purchasing the TLV micro air vent.
This product has been thoroughly inspected before being shipped from the
factory. When the product is delivered, before doing anything else, check the
specifications and external appearance to make sure nothing is out of the
ordinary. Also be sure to read this manual carefully before 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 detailed instructions for special order specifications or options not
contained in this manual are required, please contact TLV for full details.
This instruction manual is intended for use with the model(s) listed on the
front cover. It is necessary not only for installation but for subsequent,
maintenance, disassembly/reassembly and troubleshooting.
Please keep it in a safe place for future reference.

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Safety Considerations
Read this section carefully before use and be sure to follow the instructions.
Installation, inspection, maintenance, repairs, disassembly, adjustment
and valve opening/closing should be carried out only by trained
maintenance personnel.
The precautions listed in this manual are designed to ensure safety and
prevent equipment damage and personal injury. For situations that may
occur as a result of erroneous handling, three different types of cautionary
items are used to indicate the degree of urgency and the scale of potential
damage and danger: DANGER, WARNING and CAUTION.
The three types of cautionary items above are very important for safety: be
sure to observe all of them as they relate to installation, use, maintenance,
and repair. Furthermore, TLV accepts no responsibility for any accidents or
damage occurring as a result of failure to observe these precautions.
Symbols
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 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 accidents.
CAUTION
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 that may lead to serious accidents. Local
regulations may restrict the use of this product to below the
conditions quoted.
DO NOT use this product in excess of the maximum
operating pressure differential.
Such use could make discharge impossible (blocked).
Continued on the next page

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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.
When disassembling or removing the product, wait until the
internal pressure equals atmospheric pressure and the
surface of the product has cooled to room temperature.
Disassembling or removing the product when it is hot or under
pressure may lead to discharge of fluids, causing burns, other
injuries or damage.
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 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 other injury.
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.
Use only under conditions in which no water hammer will
occur.
The impact of water hammer may damage the product, leading to
fluid discharge, which may cause burns or other injury.

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Feature
1. This product is designed to be compact and lightweight.
2. In case of a water leak, water can be drained to a drain pan, etc. by connecting a
vinyl tube.
Operation
Principles of air discharge:
1. Upon start-up, the float is in the lowest position
due to gravity and the valve is fully open,
allowing for 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 through the
valve orifice.
In this manner, the air vent constantly
responds to the amount of liquid flow by
automatically adjusting discharge.

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Specifications
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
DO NOT use this 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
Allowable
Pressure
PMA*
Maximum
Allowable
Temperature
TMA*
MPaG
(psig)
MPaG
(psig)
°C
(°F)
MPaG
(psig)
°C
(°F)
SA3-3
0.3
(45)
0.01
(1.5)
100
(212)
1.0
(150)
100
(212)
SA3-10
1.0
(150)
0.1
(15)
(MPa = 10.197kg/cm2)
*Maximum allowable pressure (PMA) and maximum allowable temperature (TMA) are
PRESSURE SHELL DESIGN CONDITIONS, NOT OPERATING CONDITIONS.
Configuration
No.
Name
1
Body
2
Valve Seat
3
Base
4
Float
5
Valve Holder
6
Coil Spring
7
Siphon Rod
8
Body Gasket
9
Valve
10
Valve Seat Holder
11
O-Ring
12
Snap Ring
13
Vinyl Tube
14
Nameplate
15
Worm Drive Clamp
16
Clamp Screw

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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

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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

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Disassembly/Reassembly
When disassembling or removing the product, wait until the internal
pressure equals atmospheric pressure and the surface of the product
has cooled to room temperature. Disassembling or removing the
product when it is hot or under pressure may lead to discharge of fluids,
causing burns, other injuries or damage.
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
Use the following procedures to remove components. Use the same procedures in
reverse to reassemble. (Installation, inspection, maintenance, repairs,
disassembly, adjustment and valve opening/closing should be carried out only by
trained maintenance personnel.)
Disassembly/Reassembly
Part
Disassembly
Reassembly
Base
Remove with a wrench
Consult the table of tightening torques
and tighten to 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 clamp screw with
a Phillips screwdriver
Valve Seat Holder
Remove with a wrench
Consult the table of tightening torques
and tighten to the proper torque
Valve Holder (Valve),
Coil Spring
Remove from the body
Replace with a new valve together
with a valve holder if the valve is
misshapen or damaged
Insert the valve holder into the hole in
the float
Float
Remove from the body

Snap Ring
Remove with a needle-nose
pliers
Insert securely into the slot
Valve Seat
Remove from the valve seat
retainer
Replace with a new valve seat if
damaged
Be careful not to damage the seating
surface
O-Ring
Remove the o-ring
Replace with a new o-ring; be sure to
coat the o-ring with heat-resistant
grease
Table of Tightening Torques
Part
Torque
Distance Across Flats
Nm
(lbf·ft)
mm
(in)
Body, Base
15
(11)
32
(11/4)
Valve Seat Holder
8
(5.9)
12
(15/32)
(1 Nm 10 kgcm)

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Troubleshooting
When disassembling or removing the product, wait until the internal
pressure equals atmospheric pressure and the surface of the product
has cooled to room temperature. Disassembling or removing the
product when it is hot or under pressure may lead to discharge of fluids,
causing burns, other injuries or damage.
CAUTION
When the product fails to operate properly, use the following table to locate the
cause and remedy.
Problem
Cause
Remedy
No air discharged or
discharge is poor
Air is not reaching the vent
because the liquid in the piping is
not being displaced by air
Correct the inlet piping
The valve seat is clogged
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 the installation
Valve does not close
and liquid spurts out
Specific gravity of the liquid is not
suitable for this product
Select a product with suitable
specifications for the operating
conditions
How to Clean the Valve Seat
Remove the vinyl tube and turn the tip of the valve seat left and right.
Remove the snap ring and clean the valve orifice and the valve area with a soft cloth.
(The valve is sealed off internally, so there is no need to close the inlet valve.)

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TLV EXPRESS LIMITED WARRANTY
Subject to the limitations set forth below, TLV CO., LTD., a Japanese corporation
(“TLV”), warrants that products which are sold by it, TLV International Inc. (“TII”) or one
of its group companies excluding TLV Corporation (a corporation of the United States of
America), (hereinafter the “Products”) are designed and manufactured by TLV, conform
to the specifications published byTLV for the corresponding part numbers (the
“Specifications”) and are free from defective workmanship and materials. The party
from whom the Products were purchased shall be known hereinafter as the “Seller”.
With regard to products or components manufactured by unrelated third parties (the
“Components”), TLV provides no warranty other than the warranty from the third party
manufacturer(s), if any.
Exceptions to Warranty
This warranty does not cover defects or failures caused by:
1. improper shipping, installation, use, handling, etc., by persons other than TLV,
TII or TLV group company personnel, or service representatives authorized by
TLV; or
2. dirt, scale or rust, etc.; or
3. improper disassembly and reassembly, or inadequate inspection and
maintenance by persons other than TLV or TLV group company personnel, or
service representatives authorized by TLV; or
4. disasters or forces of nature or Acts of God; or
5. abuse, abnormal use, accidents or any other cause beyond the 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 Hazardous Fluids (fluids other than steam, air, water,
nitrogen, carbon dioxide and inert gases (helium, neon, argon, krypton, xenon
and radon)); or
11. failure to follow the instructions contained in the TLV Instruction Manual for the
Product.
Duration of Warranty
This warranty is effective for a period of one (1) year after delivery of Products to the
first end user. Notwithstanding the foregoing, asserting a claim under this warranty
must be brought within three (3) years after the date of delivery to the initial buyer if
not sold initially to the first end user.
ANY IMPLIED WARRANTIES NOT NEGATED HEREBY WHICH MAY ARISE BY
OPERATION OF LAW, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE AND ANY EXPRESS WARRANTIES NOT
NEGATED HEREBY, ARE GIVEN SOLELY TO THE INITIAL BUYER AND ARE LIMITED IN
DURATION TO ONE (1) YEAR FROM THE DATE OF SHIPMENT BY THE SELLER.
Exclusive Remedy
THE EXCLUSIVE REMEDY UNDER THIS WARRANTY, UNDER ANY EXPRESS WARRANTY
OR UNDER ANY IMPLIED WARRANTIES NOT NEGATED HEREBY (INCLUDING THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE), IS REPLACEMENT; PROVIDED: (a) THE CLAIMED DEFECT IS REPORTED TO

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THE SELLER IN WRITING WITHIN THE WARRANTY PERIOD, INCLUDING A DETAILED
WRITTEN DESCRIPTION OF THE CLAIMED DEFECT AND HOW AND WHEN THE
CLAIMED DEFECTIVE PRODUCT WAS USED; AND (b) THE CLAIMED DEFECTIVE
PRODUCT AND A COPY OF THE PURCHASE INVOICE IS RETURNED TO THE SELLER,
FREIGHT AND TRANSPORTATION COSTS PREPAID, UNDER A RETURN MATERIAL
AUTHORIZATION AND TRACKING NUMBER ISSUED BY THE SELLER. ALL LABOR
COSTS, SHIPPING COSTS, AND TRANSPORTATION COSTS ASSOCIATED WITH THE
RETURN OR REPLACEMENT OF THE CLAIMED DEFECTIVE PRODUCT ARE SOLELY THE
RESPONSIBILITY OF BUYER OR THE FIRST END USER. THE SELLER RESERVES THE
RIGHT TO INSPECT ON THE FIRST END USER’S SITE ANY PRODUCTS CLAIMED TO BE
DEFECTIVE BEFORE ISSUING A RETURN MATERIAL AUTHORIZATION. SHOULD SUCH
INSPECTION REVEAL, IN THE SELLER’S REASONABLE DISCRETION, THAT THE
CLAIMED DEFECT IS NOT COVERED BY THIS WARRANTY, THE PARTY ASSERTING
THIS WARRANTY SHALL PAY THE SELLER FOR THE TIME AND EXPENSES RELATED
TO SUCH ON-SITE INSPECTION.
Exclusion of Consequential and Incidental Damages
IT IS SPECIFICALLY ACKNOWLEDGED THAT THIS WARRANTY, ANY OTHER EXPRESS
WARRANTY NOT NEGATED HEREBY, AND ANY IMPLIED WARRANTY NOT NEGATED
HEREBY, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, DO NOT COVER, AND NEITHER TLV, TII NOR ITS TLV
GROUP COMPANIES WILL IN ANY EVENT BE LIABLE FOR, INCIDENTAL OR
CONSEQUENTIAL DAMAGES, INCLUDING, BUT NOT LIMITED TO LOST PROFITS, THE
COST OF DISASSEMBLY 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 (INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE) CANNOT BE
EXCLUDED, SUCH DAMAGES ARE EXPRESSLY LIMITED IN AMOUNT TO THE
PURCHASE PRICE OF THE DEFECTIVE PRODUCT. THIS EXCLUSION OF
CONSEQUENTIAL AND INCIDENTAL DAMAGES, AND THE PROVISION OF THIS
WARRANTY LIMITING REMEDIES HEREUNDER TO REPLACEMENT, ARE INDEPENDENT
PROVISIONS, AND ANY DETERMINATION THAT THE LIMITATION OF REMEDIES FAILS
OF ITS ESSENTIAL PURPOSE OR ANY OTHER DETERMINATION THAT EITHER OF THE
ABOVE REMEDIES IS UNENFORCEABLE, SHALL NOT BE CONSTRUED TO MAKE THE
OTHER PROVISIONS UNENFORCEABLE.
Exclusion of Other Warranties
THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED,
AND ALL OTHER WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE,
ARE EXPRESSLY DISCLAIMED.
Severability
Any provision of this warranty which is invalid, prohibited or unenforceable in any
jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such invalidity,
prohibition or unenforceability without invalidating the remaining provisions hereof,
and any such invalidity, prohibition or unenforceability in any such jurisdiction shall
not invalidate or render unenforceable such provision in any other jurisdiction.

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Service
For Service or Technical Assistance: Contact your TLV representative or your regional TLV
office.
In Europe:
Daimler-Benz-Straße 16-18, 74915 Waibstadt, Germany
Tel:
Fax:
[49]-(0)7263-9150-0
[49]-(0)7263-9150-50
Units 7 & 8, Furlong Business Park, Bishops Cleeve, Gloucestershire GL52
8TW, U.K.
Tel:
Fax:
[44]-(0)1242-227223
[44]-(0)1242-223077
Parc d’Ariane 2, bât. C, 290 rue Ferdinand Perrier, 69800 Saint Priest,
France
Tel:
Fax:
[33]–(0)4-72482222
[33]-(0)4-72482220
In North America:
13901 South Lakes Drive, Charlotte, NC 28273-6790, U.S.A.
Tel:
Fax:
[1]-704-597-9070
[1]-704-583-1610
In Mexico and Latin America:
Av. Jesús del Monte 39-B-1001, Col. Hda. de las Palmas, Huixquilucan,
Edo. de México, 52763, Mexico
Tel:
Fax:
[52]-55-5359-7949
[52]-55-5359-7585
In Oceania:
Unit 8, 137-145 Rooks Road, 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 Floor, Muang Thai-Phatra Complex Tower B,
Rachadaphisek Road, Huaykwang, Bangkok 10310, Thailand
Tel:
Fax:
[66]-2-693-3799
[66]-2-693-3979
#302-1 Bundang Technopark B, 723 Pangyo-ro, Bundang, Seongnam,
Gyeonggi, 13511, Korea
Tel:
Fax:
[82]-(0)31-726-2105
[82]-(0)31-726-2195
In the Middle East:
Building 2W, No.M002,PO Box371684, Dubai Airport FreeZone,Dubai,UAE
Email:
sales-m[email protected]
In Other Countries:
881 Nagasuna, Noguchi, Kakogawa, Hyogo 675-8511, Japan
Tel:
Fax:
[81]-(0)79-427-1818
[81]-(0)79-425-1167
Manufacturer:
881 Nagasuna, Noguchi, Kakogawa, Hyogo 675-8511, Japan
Tel:
Fax:
[81]-(0)79-422-1122
[81]-(0)79-422-0112