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The combination of two ball isolating valves and one ‘T’ port diverting ball valve are used to fill and flush the system with cleaning chemicals or water treatment.
Component - Material - Grade
Body - Brass - BS EN 12165 CW617N
Ball - Brass chrome plated - BS EN 12164 CW617N
Stem - Brass - BS EN 12164 CW617N
Stem ‘O’ ring - EPDM
Washer - PTFE
Handle - Polymer - ABS
Blank cap - Brass - BS EN 12165 CW617N
Strap - PCV
Technical Specification
Maximum Temperature: 85˚C
Minimum Temperature: 2˚C
Maximum Pressure: 10 bar
Compression ends complying with: BS EN 1252-2 for use with R250 (half hard) copper tube
Fill and Flush the System
Connect the water supply to the filling connection and a hose to the drain connection.
Turn valve 3 to direct the flow to drain, open valves 1 & 2 and any manual air vents.
Gradually fill the system with clean water or flushing solution until all the air has been released and the system is full, then close any manual air vents
Turn valve 3 back to system flow and operate the system.
Close valves 1 & 2, pressurise the system and operate the system following the specified flushing procedure.
Final Fill and Start Up
Open valves 1 & 2 and any manual air vents then turn valve 3 to drain and allow the system to empty through the drain port.
Fill the installation with water treatment / glycol mix until all the air has been released and the system is full, then close any manual air vents.
Turn valve 3 back to system flow and operate the system periodically releasing any trapped air.
Close the drain valve 1 and pressurise the system.
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Last update 13:10 18/08/2022
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