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1231850/7
IM-P123-23
CMGT Issue 7
AVM7
Stainless Steel Thermostatic Air Vent
Installation and Maintenance Instructions
1. Safety information
2. General product information
3. Installation
4. Commissioning
5. Operation
6. Maintenance
7. Spare parts
© Copyright 2019
IM-P123-23 CMGT Issue 6
1
Printed in GB
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Summary of Contents for Spirax Sarco AVM7
- Page 1 1231850/7 IM-P123-23 CMGT Issue 7 AVM7 Stainless Steel Thermostatic Air Vent Installation and Maintenance Instructions 1. Safety information 2. General product information 3. Installation 4. Commissioning 5. Operation 6. Maintenance 7. Spare parts © Copyright 2019 IM-P123-23 CMGT Issue 6...
- Page 2 IM-P123-23 CMGT Issue 6...
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Page 3: 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 4: Protective Clothing
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 5: Residual Hazards
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 6: General Product Information
Manufactured in 316L stainless steel with minimal crevices, and a typical internal surface finish of 1.6 - 3.2 µm Ra the AVM7 operates close to steam temperature. The product is individually packaged within an 'ISO CLASS 7' clean environment with protective end caps and sealed in a protective plastic bag. - Page 7 21.3 mm O/D x 1.6 mm wall thickness tube butt weld (DN15-I) Note: On request other connection options are available at extra cost. Please note that seat end spares for specially requested connections will require a minimum order quantity - Please consult Spirax Sarco for further information.
- Page 8 2.3 Pressure/temperature limits Pressure psi g Steam saturation curve Pressure bar g The product should not be used in this region as damage to the internals may occur Body design conditions Maximum allowable pressure 7 bar g @ 170 °C (101.5 psi g @ 338 °F) Maximum allowable temperature 170 °C @ 7 bar g...
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Page 9: Installation
3. Installation Note: Before actioning any installation observe the 'Safety information' in Section 1. Referring to the Installation and Maintenance Instructions, name-plate and Technical Information Sheet, check that the product is suitable for the intended installation: Check materials, pressure and temperature and their maximum values. If the maximum operating limit of the product is lower than that of the system in which it is being fitted, ensure that a safety device is included in the system to prevent overpressurisation. -
Page 10: Operation
5. Operation The operating element is a capsule containing a small quantity of a special liquid with a boiling point below that of water. In the cold conditions that exist at start-up, the capsule is relaxed. The valve is off its seat and is wide open, allowing unrestricted removal of air. -
Page 11: Spare Parts
Always order spares by using the description given in the column headed 'Available spares' and state the size, type and end connection of the unit. Example: 1 - Element assembly for a Spirax Sarco ½" AVM7 stainless steel thermostatic air vent having screwed NPT connections. - Page 12 IM-P123-23 CMGT Issue 6...
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