Bell & Gossett V58222C Tank Purge Valve – TPV - Manual (Page 2)

Fill
or HX
with Check Air Vent
Air Separator
Air Vent Gage
Diffuser B&G System Pump
To System
B&G Triple Duty Valve
Tank Purge Valve
Series D-Vertical)
INSTALLATION INSTRUCTIONS
1. Install Tank Purge Valve between the expansion tank and the sys-
tem so that the drain valve is between the expansion tank and the
isolation valve. (The union connection is installed on the tank). The
Tank Purge Valve should be installed so that both the drain valve
handle and the isolation valve handles are easy accessible. Refer
to Figure 1. For typical installation drawings refer to Figure 2 and 3.
2. For installing Sweat Connections:
a) Clean tube ends and valve connections thoroughly per good pip-
ing practices with a fine grade emery cloth or fine grit sandpaper.
b) For soldering, use 95-5 (Tin-Antimony) solder and a good
grade of flux.
c) Use a torch with a sharp pointed flame.
d) When sweating the joints, first adjust the valve in the full open
position, then wrap the valve with a cool wet rag and then
direct the flame with care to avoid subjecting the valve to exces-
sive heat. Allow the valve to cool before touching or operating.
e) Check the soldered connection for leaks.
3. For installing NPT connections:
Apply pipe compound conservatively to male connecting fittings only.
After installation check all joints for leakage and retighten where necessary.
OPERATION INSTRUCTIONS
1. To drain the tank first close the isolation valve by moving the han-
dle one quarter of a turn until the handle is perpendicular to the
valve and piping. Allow the tank to cool to 100°F (38°C).
2. Remove the cap from the 5 / 8 " drain on the drain valve and connect
a 5 /
8
" garden hose onto the drain valve.
3. Move the handle of drain valve one quarter of a turn until it is inline
with the valve body and system piping.
To return the Tank Purge Valve to the operating position turn the
drain valve handle until it is perpendicular to the valve body and
replace the cap onto the drain. Move the handle of the isolation valve
one quarter of a turn until it is inline with the valve body and system
piping.
SERVICE INSTRUCTIONS
Periodically inspect the Tank Purge Valves for signs of corrosion or
leakage. If steam leakage is observed the brass hex packing nut
should be tightened slightly until leak stops. If tightening the packing
nut does not stop the leak or signs of leakage are noted elsewhere,
the Tank Purge Valve must be replaced.
WARNING: Use of improper procedures to sweat valve
model with union connection into system can damage valve.
Before sweating valve connection, remove the union nut and
O-ring from the valve body. Failure to follow this instruction could
result in property damage and/or moderate personal injury.
CAUTION: Heat associated with the use of silver solder
may damage a Tank Purge Valve and voids the product
warranty. Do not use silver solder. Failure to follow these instruc-
tions could result in property damage and/or moderate personal
injury.
CAUTION: The use of PTFE impregnated pipe compound
and PTFE tape on pipe threads provides lubricity. Care
should be taken to prevent overtightening which may damage the
valve body. Failure to follow these instructions can result in moder-
ate personal injury and/or property damage.
WARNING: It is possible, depending on the age or condition
of the drain valve stem seal, for some liquid to escape when
closing the valve. Do not have eyes or face directly underneath the
valve. Failure to follow these instructions could result in serious
personal injury.
WARNING: Corrosion or leakage are indications that the
shutoff valve may be about to cause serious damage. The
Union ended valve must be replaced. Failure to follow these
instructions could result in serious personal injury or death and
property damage.
FIGURE NOTES
1. Tank connection locations may vary depending on the type of tank
to be installed.
2. Provide an anti-thermosyphon loop with a minimum drop of 12" to
prevent gravity heating of the tank.
3. Figures 2 and 3 show where a tee would be located if multiple
expansion tanks are installed.
Figure 2 – Vertical Tank Installation with Rolairtrol Air Separator
WARNING: Hot fluids and/or fluids under pressure are safety
hazard. Do not drain while it is hot or under pressure. Failure
to follow these instructions could result in serious personal injury or
death and property damage.
with Check
Fill
Air Vent
or HX
Separator
Diffuser
Pump
To System
B&G Triple Duty Valve
Expansion Tank Air Vent
P
Gage
Tank Purge Valve
Figure 3 – Horizontal Tank Installation with Rolairtrol Air Separator
Xylem Inc.
8200 N. Austin Avenue
Morton Grove, Illinois 60053
Phone: (847) 966-3700
Fax: (847) 965-8379
www.xyleminc.com/brands/bellgossett
Bell & Gossett is a trademark of Xylem Inc. or one of its subsidiaries.
© 2012 Xylem Inc. V58222C September 2012