VB6 SERIES 6-WAY CONTROL BALL VALVES AND ACTUATORS - INSTALLATION INSTRUCTIONS
31-00380M-02 Printed in USA 2
Valve Sizing
Typical pressure drop across a control valve is in the range of 3 to 5 psid, however the best control is
achieved when the valve pressure drop is as close to the coil pressure drop as possible.
The 6-Way valve will have two CV calculations, one each for Sequence 1 and Sequence 2, which will
feature different flow rates most of the time.
INSTALLATION
When installing this product...
1. Read these instructions carefully. Failure to follow them could damage the product or cause a haz-
ardous condition.
2. Check ratings given in instructions and on the product to ensure the product is suitable for your
application.
3. Installer must be a trained, experienced service technician.
4. After installation is complete, check out product operation as provided in these instructions.
Preparation
Caution: Equipment Damage Hazard
Foreign particles like dirt and metal chips can damage the ball seals.
For trouble-free operation of the product, good installation practice must include initial system
flushing, and chemical water treatment. Clean the lines upstream of particles larger than 1/16
inch diameter (welding slag, pipe scale, sand and other suspended particulate). Use of a 50
micron (or finer) system side stream filter is suggested. Remove all filters before flushing.
Do not use boiler additives, solder flux and wetted materials which are petroleum based or
contain mineral oil, hydrocarbons, or ethylene glycol acetate. Compounds which can be used,
with minimum 40% water dilution, are diethylene glycol, ethylene glycol, and propylene glycol
(antifreeze solutions).
If installing these valves in an addition to, or retrofitting an existing building, do not assume that
the fluid in the existing piping meets these criteria.
CALIFORNIA PROPOSITION 65 WARNING
This product can expose you to chemicals including lead, which is known to the State of
California to cause cancer, birth defects, or other reproductive harm. For more information,
go to www.P65Warnings.ca.gov.
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