Armstrong NSF-372 User Manual
Circuit balancing valves
Easy sizing and selection
Flexible configuration and line-sizing
makes installation fast
Multi-turn ‘Y’ pattern globe-style
design for accurate flow control
Perfect for control in variable speed
pump systems
solution outline
½"–2" models
great value
proven reliability
Armstrong Circuit Balancing
Valves (CBVs) deliver great
value with advanced product
design and proven reliability.
file no: 36.10
date: april 2018
supersedes: 36.10
date: november 2016
he choice of circuit
balancing valves for any
T
makes an important dierence to
the long-term energy eciency of
the building and the satisfaction
of tenants. Sizing and selection, as
well as ease of installation are important considerations. In addition
to those factors, contractors will
want a balancing solution that
have considerable benefits:
construction project
key benefits
Fits easily into confined spaces
Provides accurate flow control for fast and accurate balancing
Simplifies the process of adjusting and fine tuning system flow
Our industry-leading design innovations have made Armstrong Circuit Balancing Valves
the trusted choice of balancing valves for contractors, engineers and building owners.
½" – 2" Armflo valves oer
Easy installation:
installs at any angle
Extreme flow control accuracy
Stable pressure drop across the
Both the ½" – 2" Armflo valves
and the 2½"– 6" valves oer
Easy pressure measurement
Simplified process of adjusting
and fine-tuning balancing
valve improves balancing accuracy
key features
½"– 2" 2½"– 6" 8"– 12"
Minimum 5 Turn Micrometer style handle –
unparalleled adjustment precision
“Y”-pattern globe valve design, minimizes
flow turbulence
Handle set-point indicator –
easily return to an earlier setting
Integral High Precision Fixed Orifice, minimum of +/- 5%
accuracy, p independent of handle position.
Line Size optimization – no reducers required
Lead Free Certified to nsf 372 for North America
Non-rising handle – for installation in tight spaces
Flexible Installation – convertible design allows field
adjustment to either straight or angled configuration
Re-packing valve under full system pressure
key features
Armstrong has a wide range of accessories
to complement our balancing valves, including:
Flange adapters
Pressure meters
Orifice Plates and venturis
pmp ports and extension ports