Bell & Gossett V58766 Triple Duty Valve Model 3DV - Manual

OPERATIONAL LIMITS
WORKING PRESSURE & TEMPERATURE LIMITS
(SOLDER TYPE LIMITS FOR ANSI STD. B.16.18)
NPT
Maximum Operating Pressure 150 psig (1034 kPa)
Maximum Operating Temperature 250°F (121°C)
MAXIMUM MAXIMUM
LIMITATIONS LIMITATIONS
TYPE OF 1/2" – 1" 1 1 /
4
" – 2"
SOLDER PRESSURE TEMP PRESSURE TEMP
PSI (kPa) °F (°C) PSI (kPa) °F (°C)
95-5 300 (2069) 200 (93) 300 (2069) 175 (79)
TIN- 250 (1724) 225 (107) 250 (1724) 200 (93)
ANTIMONY 200 (1379) 250 (121) 175 (1207) 250 (121)
Installation, Operation and Service Instructions
Triple Duty Valve
Model 3DV
WARNING: Label Part No. V56873
installed in this location (under
Bell & Gossett). If missing it must
be replaced.
SAFETY
INSTRUCTION
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 IN-
STRUCTIONS MAY RESULT IN A SAFETY HAZARD.
INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE.
Bell & Gossett
Instruction Manual V58766
NOTE: Bell & Gossett does not recommend 3D
Valves to be used for potable water.
CAUTION: All work must be performed by qualified
personnel trained in the proper application, installa-
tion, and maintenance of systems in accordance with all
applicable codes and ordinances.
DESCRIPTION
The Bell & Gossett Model 3DV is a combination calibrated
balance, commissioning and positive shutoff valve for use in
HVAC systems. An efficient brass venturi design provides
accurate flow balancing with minimal system pressure loss.
Valves are furnished with two readout ports for pressure and
temperature, two optional 1 /
4
" ports, a standard port ball valve
with memory stop, and a hanging ID tag for commissioning. A
variety of end connections are available on both the fixed and
union ends for sizes 1", 1 1 /
4
", 1 1 /
2
" and 2".
The 3DV provides highly accurate flow measurement
capabilities.
INSTALLATION INSTRUCTIONS
1. For installing Sweat Connections:
a) Clean tube ends and valve connections thoroughly per
good piping 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.
WARNING: Damage to the 3DV or failure of solder
sealing joints may occur it these operational limits are
exceeded. This can result in water leakage. Failure to fol-
low this instruction can cause serious personal injury
and/or property damage.
WARNING: California Prop 65 Warning
This product contains a chemical known by the State
of California to cause cancer. This product contains a
chemical known by the State of California to cause birth
defects or other reproductive harm.