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Summary of Contents for TLV VB3
- Page 1 172-65471MA-06 (VB3/VB3-H) 1 October 2021 Vacuum Breaker VB3/VB3-H Copyright © 2021 by TLV CO., LTD. All rights reserved...
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Page 2: Table Of Contents
On startup, the float of the VB3/VB3-H allows for rapid air discharge until the water level rises and the float shuts off the valve. -
Page 3: Safety Considerations
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. - Page 4 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. 172-65471MA-06 (VB3/VB3-H) 1 Oct 2021...
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Page 5: Features
“A” and introducing air. At the same time, check valve disc “B” opens and introduces air into the piping, which prevents a vacuum from forming and protects the piping and other equipment. 172-65471MA-06 (VB3/VB3-H) 1 Oct 2021... -
Page 6: Specifications
Check Valve Body Intake Pipe Cover Bolt Spring Holder Intake Pipe Bolt Valve Seat Coil Spring Intake Pipe Nut Valve Seat Retainer Check Valve Disc Ring* * Ring featured only in VB3-H, not in VB3. 172-65471MA-06 (VB3/VB3-H) 1 Oct 2021... -
Page 7: Installation
Tolerance angles for installation: 5° port and air intake port Make sure the end of pipe is above Make sure the product is installed with the the waterline raised TLV lettering on the body horizontal 172-65471MA-06 (VB3/VB3-H) 1 Oct 2021... - Page 8 10. This product does not vent air automatically while the supply pump is in operation. If air venting is necessary during system operation, install an automatic air vent as well. If there is a problem, determine the cause using the “Troubleshooting” section in this manual. 172-65471MA-06 (VB3/VB3-H) 1 Oct 2021...
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Page 9: Maintenance
Check for scratches or dents Float Guide: Check for warping Check Valve Disc: Check for scratches, dents, or wear Coil Spring: Check for scratches, dents, or cracks Spring Holder: Check for warping, scratches, or wear 172-65471MA-06 (VB3/VB3-H) 1 Oct 2021... -
Page 10: Disassembly/Reassembly
Pull out to remove (Be careful, the Make sure there are no pieces of check valve sets can be removed the old gasket left on the sealing together; do not drop any parts) surfaces and reattach Continued on the next page 172-65471MA-06 (VB3/VB3-H) 1 Oct 2021... - Page 11 *Ring featured only in VB3-H, not in VB3. Torque Tightening Table Intake Pipe Bolt Intake Pipe Nut Set Screw Dist.
- Page 12 Check Valve Body Ring* Coil Spring Check Valve Inner Gasket Check Valve Inner Gasket Check Valve Disc Check Valve Seat Check Valve Outer Gasket Intake Pipe Intake Pipe Nut *Ring featured only in VB3-H, not in VB3. 172-65471MA-06 (VB3/VB3-H) 1 Oct 2021...
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Page 13: Troubleshooting
*NOTE: Once the air intake/discharge port closes, it will remain closed until internal pressure drops to near or below atmospheric pressure. This condition may be confused with a malfunction (blocked). If air is expected to accumulate in the piping during operation, use together with an automatic air vent. 172-65471MA-06 (VB3/VB3-H) 1 Oct 2021... -
Page 14: 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... - Page 15 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...
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Page 16: Service
Service For Service or Technical Assistance: Contact your TLV representative or your regional TLV office. In Europe: Tel: [49]-(0)7263-9150-0 Daimler-Benz-Straße 16-18, 74915 Waibstadt, Germany Fax: [49]-(0)7263-9150-50 Tel: [44]-(0)1242-227223 Units 7 & 8, Furlong Business Park, Bishops Cleeve, Gloucestershire GL52 8TW, U.K.
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