Bell & Gossett G10047E Circuit Setter Balance Valves 4” thru 12” sizes - Manual

Bell & Gossett ®
Circuit Setter
Balance Valves
4” thru 12” sizes
Warning Label Part Number V56846 Installed in this
location. If missing, it must be replaced.
INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.
Description
Bell & Gossett Circuit Setter Balance Valves are precision engineered valves which function as precise system balancing valves
and highly accurate flow meters. They will also function as a positive shutoff service valve. They are equipped with an easy
to operate memory stop feature which allows the circuit setter to be closed for system service and yet to be returned to the
previously determined setting.
Operational Limits
Maximum Operating Pressure - Flanged: 175 psig (1207 kPa), Maximum Operating Pressure - Grooved: 300 psig
(2068 kPa), Maximum Operating Temperature: 250°F (121°C)
Installation Instructions
1.To retain calibrated accuracy, a minimum length of unrestricted straight pipe equivalent to 5-pipe diameters up-stream and
2-pipe diameters downstream must be maintained immediately adjacent to the Circuit Setter Balance Valves.
2.Circuit Setter Balance Valves are unidirectional and must be installed with the arrow cast on body of valve pointing
indirection of flow. Bell & Gossett Circuit Setter Balance Valves may be installed either in vertical or horizontal pipe with valve
stem pointing up or down.
3.Circuit Setter Balance Valves are furnished with 125# ANSI cast iron flanges rated at 175 PSI (1207 kPa) or grooved
connectors rated at 300 PSI (2068 kPa) at 250° F (121° C). Companion ANSI flanges or grooved connectors should be selected
with suitable gaskets and bolting to withstand rated pressure and temperature. Bolts are to be properly torqued and
tightened in a crisscross pattern.
4.Check connections for leaks and re torque if necessary.
Operating Instructions
How to Use Bell & Gossett Circuit Setter to Establish Required System Flow
1.Place a wrench on the wrench flats on top of the Circuit Setter stem and open the Circuit Setter to the 100% open position.
Circuit Setter position (amount Circuit Setter is open or closed) can be read by the position of the indicator ring through the
nameplate slot. See Figure 1.
SAFETY INSTRUCTIONS: This safety alert symbol will be used in this manual to draw attention to safety related
instructions. When used, the safety alert symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN A SAFETY HAZARD!
IMPORTANT: Bell &Gossett Circuit Setter Balance Valves are not recommended for use with meter connections
pointing down. Dirt will collect in the connections and foul up the readout valves and readout meters.
WARNING: The use of improper mating flanges, connectors, gaskets or bolting can cause flange or connector failure
resulting in the loss of hot or cold system fluid. Use only companion cast iron ANSI flanges or connectors with
appropriate gaskets and properly tightened bolts. Failure to follow this instruction can result in serious personal
injury and/or property damage.
INSTRUCTION MANUAL
G10047E