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ITEM 1040 SERIES
DATED MARCH 2015
CALIFORNIA PROPOSITION 65 WARNING:
Warning:
accessories contain chemicals known to the State of
California to cause cancer, birth defects or other
reproductive harm.
TYPICAL APPLICATIONS:
Aurora
circuit balancing valves are most often used in
®
hydronic heating and cooling installations, using a recirculating
liquid as the heat transfer medium. Suitable liquids include
water, glycol-water mixtures (both ethylene and propylene
glycols) and brine. For applications or liquids other than these,
please call Aurora Technical Support for recommendation of
suitability of these valves in the target application.
Technical Data
Connection
Maximum Working Pressure
Operating Temperature Range
Product is in compliance with lead free pipe, pipe fittings,
plumbing fittings or fixtures, as defined by CA, LA, MD, VT
state laws and the U.S. Safe Water Drinking Act.
Materials of Construction
Body, Bonnet
Stem and Disk
Elastomers
Handwheel
Maximum Operating Parameters
Flow Rate Ranges
Valve Size
Min. Flow
½" LF
0.26 (0.016)
¾" LF
0.40 (0.025)
½"
1.4 (0.086)
¾"
1"
1¼"
1½"
2"
14.0 (0.88)
Note: Flow in US gpm (L/s)
MODELS CBV-S5 AND CBV-NPT5
This product and related
Model CBV-S5 – Solder Joint
Model CBV-NPT5 – Threaded NPT
300 psi / 20 bar (PN20)
–4°F to 300°F (–20°C to 150°C)
Certified to
NSF/ANSI 372
Brass Alloy CW617
Brass Alloy B16
EPDM
Reinforced Nylon; ABS
Max. Flow
2.2 (0.14)
3.4 (0.21)
10.4 (0.66)
2.1 (0.13)
13.5 (0.85)
5.2 (0.33)
20.2 (1.28)
8.2 (0.52)
35.5 (2.24)
8.1 (0.51)
48.9 (3.09)
83.3 (5.25)
INSTALLATION:
Clean the system piping of debris (pipe scale, rust, welding
slag) and other contaminants. As with any water system it
is important to make provisions to keep the system clean.
For optimum operation, air entrapment in the fluid must
be removed.
The operation of the valve is dependent on the fluid
characteristics such as specific gravity and viscosity, which
vary with the fluid temperature. For installations using fluids
other than 100% water, flow rates must be corrected for the
changes created by the fluid medium.
To ensure accuracy of measurement Circuit Balancing
Valves (CBV's) should be located at least five pipe diameters
downstream from any fitting and at least ten pipe diameters
downstream from a pump (as illustrated in Fig. 1).
Fig. 1
All CBV's are marked with an arrow on the valve body to
indicate direction of flow. The arrow must point in the direction
of flow for proper operation.
CBV's may be installed in horizontal or vertical piping
(as illustrated in Fig. 2). Provisions must be made for easy
access to the probe metering ports (PMP's), reading scale and
memory stop.
Fig. 2
SWEAT (SOLDER) CONNECTIONS:
CBV-S5 models are supplied with sweat style connections.
Caution should be used when sweat style connection valves are
installed to prevent overheating the valve.
Solder the valve body in line using 95/5 (95% tin, 5%
antimony) type solder or equal. Always follow local plumbing
codes for installation best practices.
CAUTION
Before soldering, ensure the valve is opened at least
one full turn to avoid damage to the sealing O-ring due
to overheating.
Aurora recommends that the CBV be protected during
installation by wrapping a damp rag around the handle/
bonnet assembly prior to soldering the valve into the line.
2
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