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1234150/4
IM-P123-17
ST Issue 4
AVS32 Stainless Steel Air Vent
for Steam Systems
Installation and Maintenance Instructions
1. Safety information
2. General
product information
3. Installation
4. Commissioning
5. Operation
6. Maintenance
7. Spare parts
© Copyright 2015
IM-P123-17 ST Issue 4
1
Printed in GB
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Summary of Contents for Spirax Sarco AVS32
- Page 1 1234150/4 IM-P123-17 ST Issue 4 AVS32 Stainless Steel Air Vent for Steam Systems Installation and Maintenance Instructions 1. Safety information 2. General product information 3. Installation 4. Commissioning 5. Operation 6. Maintenance 7. Spare parts © Copyright 2015 IM-P123-17 ST Issue 4...
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Page 2: Safety Information
Determine the correct installation situation and direction of fluid flow. iv) Spirax Sarco products are not intended to withstand external stresses that may be induced by any system to which they are fitted. It is the responsibility of the installer to consider these stresses and take adequate precautions to minimise them. -
Page 3: Pressure Systems
1.9 Tools and consumables Before starting work ensure that you have suitable tools and/or consumables available. Use only genuine Spirax Sarco replacement parts. 1.10 Protective clothing Consider whether you and/or others in the vicinity require any protective clothing to protect against the hazards of, for example, chemicals, high/low temperature, radiation, noise, falling objects, and dangers to eyes and face. -
Page 4: Returning Products
1.17 Returning products Customers and stockists are reminded that under EC Health, Safety and Environment Law, when returning products to Spirax Sarco they must provide information on any hazards and the precautions to be taken due to contamination residues or mechanical damage which may present a health, safety or environmental risk. -
Page 5: General Product Information
2. General product information 2.1 Description The AVS32 is a stainless steel maintainable balanced pressure thermostatic air vent for use on steam systems. It has an integral flat strainer screen and straight connections. All pressure bearing components are produced by TÜV approved suppliers in accordance with AD-Merkblatt WO/TRD100. - Page 6 287°C @ 32 bar g (549°F @ 464 psi g) Minimum operating temperature 0°C (32°F) Note: For lower operating temperatures consult Spirax Sarco. Designed for a maximum cold hydraulic test pressure of: 75 bar g (1 088 psi g) IM-P123-17 ST Issue 4...
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Page 7: Installation
The AVS32 should be installed with the capsule in a horizontal plane with the cap at the top, and be positioned at the highest point of the main, or plant where the air collects. -
Page 8: Operation
4. Commissioning After installation or maintenance ensure that the system is fully functional. Carry out tests on any alarms or protective devices. 5. Operation The operating element is a capsule containing a small quantity of a special liquid with a boiling point below that of water. - Page 9 6.3 How to clean or replace the strainer screen: Remove the cover (1) and spring (17) from the body (8) by unscrewing the two cover bolts (9). Remove the capsule (2) and spacer plate (18). Unscrew the valve seat (3) from the body (8). Clean or replace the screen (5) as required.
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Page 10: Spare Parts
Always order spares by using the description given in the column headed 'Available spares' and state the size and type of air vent. Example: 1 - Capsule and seat assembly set for a Spirax Sarco DN25 AVS32 air vent. Fig. 4... - Page 11 IM-P123-17 ST Issue 4...
- Page 12 IM-P123-17 ST Issue 4...
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