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Betts Industries Inc. ▪ 814·723·1250 ▪ 1800 Pennsylvania Ave. West ▪ Warren, PA 16365 ▪
Print Date: 12/19/2024 This form is considered uncontrolled 24 hrs. after print date.
Form Title:
INSTALLATION AND MAINTENANCE MANUAL
Document Title:
3.5" & 4" Aluminum Pneumatic Interlock Vapor
PART NUMBERS (Including, but not inclusive)
AVT3.5ALTS
AVT3.5ALVT
AVF3.5ALTS
AVF3.5ALVB
AVF4ALTS
AVF4ALVT
Table of Contents:
1. General
2. Parts List
3. Description and Intended Use
4. Installation
5. Inspection and Testing
6. Disassembly and Rebuild Instructions
7. Trouble Shooting Guide
Valves
AVT3.5ALVB
AVT3.5AYTS
AVF3.5ALVB
AVF3.5AYTS
AVF4ALVB
Document #:
MM-AV001
(Form: DEF-006A-4)
Revision:
0
Date:
Dec. 19, 2024
Page:
1 of 13
Original release date:12/19/2024
www.BettsInd.com
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Summary of Contents for Betts AVT3.5ALTS
- Page 1 5. Inspection and Testing 6. Disassembly and Rebuild Instructions 7. Trouble Shooting Guide Betts Industries Inc. ▪ 814·723·1250 ▪ 1800 Pennsylvania Ave. West ▪ Warren, PA 16365 ▪ www.BettsInd.com Print Date: 12/19/2024 This form is considered uncontrolled 24 hrs. after print date.
- Page 2 1.2. Betts Industries, Inc. provides this manual as a guideline for reference only and assumes no responsibility for personal injury or property damage that may occur in conjunction with this manual. Betts Industries, Inc. cannot be held responsible for incorrect installation, operation or maintenance of this equipment.
- Page 3 SEAL KITS: Items 5, 6, 7, 10, 12, and 17 available in seal kit part numbers: SK-AV3.5TS, SK-AV3.5VT, or SK-AV3.5VB. Mounting O-ring sold separately. WARNING: Use only genuine Betts replacement parts. Use of substitute parts can impair the proper function and safety of this product and void all warranties.
- Page 4 SEAL KITS: Items 5, 6, 7, 10, 12, and 17 available in seal kit part numbers: SK-AV3.5TS, SK-AV3.5VT, or SK-AV3.5VB. Mounting O-ring sold separately. WARNING: Use only genuine Betts replacement parts. Use of substitute parts can impair the proper function and safety of this product and void all warranties.
- Page 5 Replacement O-rings must be compatible with products carried. WARNING: Use only genuine Betts replacement parts. Use of substitute parts can impair the proper functioning of this product and void all warranties.
- Page 6 Inspect the mounting surface that the valve will be mounted to; the mounting surface must be flat and free of all damage. Betts Industries Inc. ▪ 814·723·1250 ▪ 1800 Pennsylvania Ave. West ▪ Warren, PA 16365 ▪ www.BettsInd.com Print Date: 12/19/2024 This form is considered uncontrolled 24 hrs. after print date.
- Page 7 Betts Industries Inc. ▪ 814·723·1250 ▪ 1800 Pennsylvania Ave. West ▪ Warren, PA 16365 ▪ www.BettsInd.com...
- Page 8 Protective clothing including gloves and face shield shall be worn. Betts Industries Inc. ▪ 814·723·1250 ▪ 1800 Pennsylvania Ave. West ▪ Warren, PA 16365 ▪ www.BettsInd.com Print Date: 12/19/2024 This form is considered uncontrolled 24 hrs. after print date.
- Page 9 5.3.3 When the vapor valve closes, all downstream valves shall close, and no air pressure should be trapped in the air lines holding any valves in the system open. Betts Industries Inc. ▪ 814·723·1250 ▪ 1800 Pennsylvania Ave. West ▪ Warren, PA 16365 ▪ www.BettsInd.com...
- Page 10 6.10 Remove spring (16) from the main bore of valve body. Inspect the spring for any damage. Replace spring if necessary. Betts Industries Inc. ▪ 814·723·1250 ▪ 1800 Pennsylvania Ave. West ▪ Warren, PA 16365 ▪ www.BettsInd.com Print Date: 12/19/2024 This form is considered uncontrolled 24 hrs. after print date.
- Page 11 O-ring Figure 6 the valve body. Inspect and clean the bores. Betts Industries Inc. ▪ 814·723·1250 ▪ 1800 Pennsylvania Ave. West ▪ Warren, PA 16365 ▪ www.BettsInd.com Print Date: 12/19/2024 This form is considered uncontrolled 24 hrs. after print date.
- Page 12 O-rings from the valve body. Inspect and clean the bores. 6.37 Fully test the rebuilt valve per section 5.0 prior to putting into service. Betts Industries Inc. ▪ 814·723·1250 ▪ 1800 Pennsylvania Ave. West ▪ Warren, PA 16365 ▪ www.BettsInd.com...
- Page 13 Clean and inspect for damage or burrs. Damaged access hole bore or plug Replace as needed. Betts Industries Inc. ▪ 814·723·1250 ▪ 1800 Pennsylvania Ave. West ▪ Warren, PA 16365 ▪ www.BettsInd.com Print Date: 12/19/2024 This form is considered uncontrolled 24 hrs. after print date.
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