CALEFFI 142 Series User manual

Function
Product Range
Technical
Specifications
Performance
Technical
specifications
of insulation
Caleffi 142 series low lead manual balancing valves are used to measure and adjust
the fluid flow rate in hydronic or plumbing circuits. Characterized flow plug which
provides precise system balancing valves and highly accurate flow compared to
other setters with ball valve control. Turning the knob moves a plug within the fluid
stream which varies the flow rate. The flow rate is determined according to the
pressure drop value measured by a differential pressure meter connected to the
pressure test ports, included. The flow rate is directly determined from the pressure
differential created across the two test ports as fluid passes the adjustment plug. The
valve design is variable orifice with pressure ports located upstream and downstream
of the adjustment plug. Compared to fixed orifice designs where both test ports are
located upstream of the adjustment plug, for a given size and flow rate, the variable
orifice design produces a greater differential pressure value. In very low flow rate
applications and with good fluid quality, this larger differential pressure signal can
result in more accurate balancing. A memory stop feature allows the valve to be
closed, and later reopened to the original set position. Insulation shells are available,
purchase separately.
Material: Body: DZR low-lead brass
Bonnet: DZR low-lead brass
Control stem: DZR low-lead brass
Hydraulic seals: peroxide-cured EPDM
Knob: PA6G30
Pressure test ports: DZR low-lead brass body, EPDM seal elements
NSF/ANSI 372-2011, Drinking Water System Components-Lead Content
Reduction of Lead in Drinking Water Act, California Health and Safety Code
116875 S.3874, Reduction in Drinking Water Act, certified by ICC-ES, file
PMG-1360.
Suitable fluids: Water and glycol solutions
Max. percentage of glycol: 50%
Maximum working pressure: 232 psi (16 bar)
Working temperature range: 14–250°F (-10–120°C)
Accuracy: ±15%
Number of adjustment turns: 4
Number of regulating positions: 8
Connections: Main: 1/2”–2” NPT female
Valve body pressure test ports: 1/4“ NPT female
Material: EPP
Thickness: ½inch (15 mm)
Density: 2.8 lb/ft3(45 kg/m3)
Thermal conductivity (ISO 2581): - at 50°F (10°C): 0.257 BTU·in/hr·ft2·°F (0.037 W/(m·K))
Working temperature range: 23 - 250°F (-5 - 120°C)
Variable Orifice Balancing Valve
18204.02
www.caleffi.com
© Copyright 2018 Caleffi
142241A 1/2” NPT Female
142251A 3/4” NPT Female
142261A 1” NPT Female
142271A 1 1/4” NPT Female
142281A 1 1/2” NPT Female
142291A 2” NPT Female
Insulation code:
CBN142241A
CBN142251A
CBN142261A
CBN142271A
CBN142281A
142 Cv
3.4
5.0
7.5
12.9
16.8
22.0
1

Caleffi shall not be liable for damages resulting from stress corrosion, misapplication or misuse of it products.
CAUTION: All work must be performed by qualified personnel trained in the
proper application, installation, and maintenance of systems in accordance
with all applicable codes and ordinances.
CAUTION: Over-tightening and breakage can occur with the use of Teflon®
pipe joint compounds. Teflon®provides lubricity so that care must be
exercised not to over-tighten joints. Failure to follow these instructions
could result in property damage and /or personal injury.
WARNING: System fluids are under pressure or temperature can be
hazardous. Be sure the pressure has been reduced to zero and the
system temperature is below 100°F (38°C). Failure to follow these
instructions could result in property damage and/or personal injury.
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 INSTRUCTIONS MAY RESULT IN A SAFETY
HAZARD.
WARNING: This product can expose you to chemicals including lead, which is known
to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov.
CAUTION: Make sure that all the connecting pipework is water tight.
CAUTION: If the series 142 balancing valve is not installed, commissioned
and maintained properly, according to the instructions contained in
this manual, it may not operate correctly and may endanger the user.
2

CONSIGNE DE SÉCURITÉ
Ce symbole d'avertissement servira dans ce manuel à attirer l'attention sur la sécurité concernant
instructions. Lorsqu'il est utilisé, ce symbole signifie.
ATTENTION! DEVENEZ ALERTE ! VOTRE SÉCURITÉ EST EN JEU ! NE PAS SUIVRE CES
INSTRUCTIONS PEUT PROVOQUER UN RISQUE DE SECURITE.
ATTENTION: Tous les travaux doivent être effectués par du personnel
qualifié formé à la bonne application, installation et maintenance des systèmes
conformément aux codes et règlements locaux.
ATTENTION: Un serrage excessif et la rupture peut se produire avec
l’utilisation de composés à joint de tuyau en Téflon®. Pouvoir lubrifiant Teflon®
permet de sorte qu’il faut prendre soin de ne pas trop serrer les articulations.
Le non-respect de ces instructions peut entraîner des dommages matériels
et/ou des blessures.
AVERTISSEMENT: Les liquides du système sont sous pression ou de la
température peuvent être dangereux. Être sûr que la pression a été réduite
à zéro et la température du système est inférieure à 100°F (38°C). Le non-
respect de ces instructions peut entraîner des dommages matériels et/ou des
blessures.Le non-respect de ces instructions peut entraîner des dommages
matériels et/ou des blessures.
ATTENTION: Si le vanne d’équilibrage, Série 142, n'est pas installé, mis en
service et entretenu correctement, selon les instructions contenues dans ce manuel,
il peut ne pas fonctionner correctement et peut mettre en danger l'utilisateur.
ATTENTION: S'assurer que tous les raccordements sont étanches.
Caleffi ne pourra être tenue responsable des dommages résultant de la corrosion, d’une mauvaise
utilisation ou une mauvaise utilisation des produits.
AVERTISSEMENT: Ce produit peut vous exposer à des produits chimiques comme
le plomb, qui est connu dans l’État de Californie pour causer le cancer, dommages à la
naissance ou autre. Pour plus d’informations rendez-vous www.P65Warnings.ca.gov.
3

Installation
Assembly and disassembly of the valves should always be conducted while the
system is cold and not pressurized (fig. A).
Install according to the flow direction indicated by the arrow on the valve body
(fig. B).
Can be installed in any orientation (fig. C).
In order to ensure measuring accuracy, the balancing valve must be installed by
keeping an upstream straight section of at least five diameters, increased to at
least ten diameters if the nearest device upstream is a pump (fig. D).
PSI
A
B
C D
·
Installation Tip
Scan to view
142 Balancing Valve
4

Dimensions
A
1/2"
3/4"
1"
DN
15
20
25
Code
140
. 40
140
. 50
B
140
. 60
65
75
85
C
106,5
106,5
112,5
0,790
0,924
1,185
B
C
A
D
D Mass (kg)
69
69
69
B
C
A
DN
15
20
25
A
1/2"
3/4"
1"
Code
142140
142150
142160
B
65
75
85
C
64
64
64
0,434
0,523
0,677
Mass (kg)
Code A B C Wt (lb)
142241A ½" 2 9/16" 2 ½" 1.0
142251A ¾" 2 15/16" 2 ½" 1.2
142261A 1" 3 7/16" 2 ½" 1.5
142271A 1 ¼" 3 ¾" 3 ¼" 2.3
142281A 1 ½" 3 15/16" 3 3/8" 3.0
142291A 2" 4 ¾" 3 3/8" 3.5
5

Operating Principle The 142 series balancing valve is a
hydraulic device that controls the flow
rate of a fluid. Turning the knob moves a
plug within the fluid stream which varies
the flow rate. The flow rate is determined
according to the pressure drop value
measured by a differentialpressure meter
connected to the pressure test ports.
The opening position is indicated by the
numbered indicator (fig. E):
- The turn indicator (1) shows a
regulating scale scale from 0 to 4
(0 closure, 4 complete opening).
Turning the knob manually through
360° causes the indicator to move by
one unit.
E
Use of the balancing
valve: setting the
flow rate (fig F-G)
NOTE: the indications + and – on the
drawings refer to the pressure upstream
and downstream of the component
whose pressure differential is to be
measured.
For the connection of the pressure test ports
of the valve (2) with a differential pressure
measuring device (3), use a pair of fittings
with a measuring probe (fig. F).
F
2
4
3
1
a) As the thermal fluid passes,
measure the Δp of the valve with
any suitable differential pressure
measuring device(fig. G);
b)Using the “Hydraulic
characteristics” sheet (sheet
code 18203 supplied in the
pack), find the flow rate value
that is passing through the valve,
consulting the diagram “Δp-flow
rates” corresponding to the size
of the valve used.
c) Turn the knob and repeat steps a)
and b) until you reach the desired
value.
Correction for liquids of different densities
If using liquids with a density different from water at 70°F (20°C)
≈ 62.4 lb/ft3( ≈ 1 kg/dm3), correct the value of the measured head loss Δp
using the following formula:
G
Δp1= Δp
where:
Δp1= reference head loss in (psid(kPa))
Δp = measured head loss in (psid(kPa))
= fluid density in lb/ft3 (kg/dm3)
water
·
6

Memory Stop on the 142
series balancing valve
Once you have balanced the flow rate, insert a 2.5 mm hexagonal key into the
hole (5) in the balancing valve and fully turn it clockwise without forcing it. This
sets the valve’s maximum stroke position: if necessary, it is possible to shut off
the balancing valve in the circuit by turning the knob fully clockwise manually. To
restore the valve to its preset position, turn the adjustment knob fully counter-
clockwise (fig. J).
HI J
Locking/sealing the setting
position (fig. K)
K
Installing Insulation
Join the size-specific insulation shells
on the 142 series balancing valve, sold
under separate code number.
L
5
7

Caleffi North America, Inc.
3883 West Milwaukee Road
Milwaukee, WI 53208
T: 414.238.2360 F: 414.238.2366
5-30-18
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