User Guide

Ball valves should be drained for the winter in areas where freezing tem-
peratures may occur. Water will become trapped between the ball and
valve body if the valve is left in either the full open or full closed position.
If water should freeze between the ball and valve body, damage to the ball
valve will occur.
After draining procedures on the backflow prevention assembly have been
completed, all ball valves must be left in a half open / half closed (45°
Ball Valve Draining Procedure for Freeze Protection
Figure A: Ball Valve in half open/half closed 45° degree position
Figure B: Cutaway drawing displaying ball valve in half open/half
closed position
A Watts Water Technologies Company
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IOM-F-FreezeProtection 1145 © 2012 FEBCO
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THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER
WARRANTIES, EXPRESS OR IMPLIED. THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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EFUFSNJOFZPVSSJHIUTSO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED IN DURATION TO ONE YEAR FROM THE DATE OF ORIGINAL SHIPMENT.
degree) position as shown in Figure A. Open the ball valve approximately
45° degrees while draining the pipeline and assembly to allow water
between the ball and valve body to drain as shown in Figure B. Leave the
ball valve in this position for the winter to prevent freeze damage.
The valve must be closed before the system can be repressurized.
NOTE: Open and close ball valves slowly at all times to prevent
damage to the system.
FREEZE PROTECTION SERIES 850, LF850, 860 AND LF860
1
⁄2" - 2" (15 - 50 mm)
45°