Replacement Parts

CIRCUIT BALANCING VALVES
VENTURI | SUBMITTAL
65
|
HYDRONIC SOLUTIONS CATALOG
Job:
Representative:
Engineer:
Contractor:
Order no: Date:
Submitted by: Date:
Approved by: Date:
ARMflo Circuit Balancing Valves are highly
resistant to turbulence induced by nearby piping
components and can often provide excellent
results when mounted directly to other fittings.
However, for optimum flow measurement
accuracy and when practical, locate the valve:
• 5 pipe diameters downstream of a fitting.
• 2 pipe diameters upstream of a fitting.
• 10 pipe diameters upstream or
downstream of a pump.
* Armstrong low flow circuit balancing valves are needed for systems where the
flow rate is below ashrae guidelines. Low flow units allow contractors to line
size the valve, despite the low flow velocity. In addition, low flow valves:
• Boost the dierential pressure signal to make the signal more stable
and reliable
• Provide superior flow regulation over the operating range
• Are less prone to blockage due to particles in the system fluid
• Accurately indicate a blockage condition
installation
technical data
Maximum working pressure: pn20 / 300 psi (2068 kPa)
Operating temperature range: -4°f to 300°f (-20°c to 150°c )
cbv cbv
5 d10 d
pump
model pipe size
min.
flow rate
max.
flow rate
cbv050v(x)cr-lf* K" (dn15) 0.26 (0.02) 1.98 (0.12)
cbv075v(x)cr-lf* ¾" (dn20) 0.41 (0.03) 3.11 (0.20)
cbv050v(x)cr K" (dn15) 1.22 (0.08) 9.57 (0.60)
cbv075v(x)cr ¾" (dn20) 1.99 (0.13) 13.76 (0.87)
cbv100v(x)cr 1" (dn25) 5.36 (0.34) 19.90 (1.25)
cbv125v(x)cr 1¼" (dn32) 8.45 (0.53) 40.01 (2.52)
cbv150v(x)cr 1½" (dn40) 9.02 (0.57) 50.07 (3.15)
cbv200v(x)cr 2" (dn50) 15.50 (0.98) 81.92 (5.16)
flow rate ranges
materials of construction
accessories
notes
Body, bonnet: Brass alloy (forged) – cw602n
Corrosion resistant to reference en12165 per iso-6509
Stem and disc: Brass alloy (machined) – cw602n
Corrosion resistant to reference en12165 per iso-6509
Elastomers: epdm
Handwheel: Reinforced nylon; abs
pt ports
pt port extensions
o 1O" o 2O"
Dierential pressure
manometers
cbdm 200
cbdm 135/60
dpm-15
dpm-100
Flow in USgpm(L/s)
Where model (x) = Connection Type: t = npt , s = Sweat, b = bspp (iso-228).
1
Solder style models - Valve body must be opened at
least one full turn prior to being soldered in the line.
2 For valve sizing, refer to the performance curve and
flow rate ranges. For balancing, use Venturi Cv curves
or slide rule, which display dierential pressure drop
across the Venturi for dierent flow rates.
3 Suggested dierential pressure meters for use with
Armstrong cbv’s are dpm-15 and dpm-100 digital
dierential pressure meters and cbdm 135/60 and
cbdm 200 analogue meters.
4 All valves furnished with probe metering ports.
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