Schneider Electric Venta V241 Data Sheet
Specification Sheet
Venta V241
Two-way Globe Valve, Bronze, PN 16
Product Description
The V241 is a precision flow control valve with polished stainless steel seats for a strong close off and a low leakage rate
for all heating, cooling, air handling and domestic hot water
systems.
The patented crown plug design provides an excellent low
flow control and is self-cleaning when used in media with a
high concentration of dirt particulates.
Resilient construction materials allow the valve to be used
at high differential pressures and with the following types of
media.
• Hot and chilled water.
• Water containing phosphate or hydrazine additives.
• Water with antifreeze additives such as glycol.
Specifications
Design Two-way globe valve
Pressure class PN 16
Flow characteristic EQM
Stroke 20 mm
Rangeability Kvs/Kv
Leakage Up to 0,02% of Kvs
∆Pm 600 kPa, water
Max. temperature of medium 150 °C
Min. temperature of medium
End Connections External pipe thread
according to ISO 228/1
Connection sets see tables
Materials
Body Bronze Rg5
Plug and seat Stainless steelSS 2346
Stem Stainless steelSS 2346
Pressure Equipment Directive PED 2014/68/EU,
Article 4 (3)
a. If the valve is used for media at temperatures below 0 °C, it
should be equipped with a stem heater in order to prevent ice
formation on the valve stem.
see table
min
a
–20 °C
Available Part Numbers
Size
DN in.
15 ½" 0.25 721 4106 000
15 ½" 0.40 721 4110 000
15 ½" 0.63 721 4114 000
15 ½" 1.0 721 4118 000
15 ½" 1.6 721 4122 000
15 ½" 2.5 721 4126 000
15 ½" 4.0 721 4130 000
20 ¾" 6.3 721 4134 000
25 1" 10 721 4138 000
32 1¼" 16 721 4142 000
40 1½" 25 721 4146 000
50 2" 38 721 4150 000
Kvs
m3/h
End Connection Accessories ordered separately, pg. 5.
Part number
(excluding
connection)
Rangeability
> 50
> 100
Spare Parts
Description Part No.
Stuffing box Standard type S max
150 °C
1 001 0800 0
Key to Technical specification
• Rangability is the ratio of Kvs and Kv
• Kvs is the flow through the valve in m3/h at the specified
valve lift and at a pressure drop of 100 kPa across the
valve.
• Kv
is the minimum controllable flow (m3/h) at a
min
pressure drop of 100 kPa within the range in which the
valve charac teristics conform to the slope requirements
of EN60534-1
min
©2019 Schn eider Electri c. All rights res erve d. All tr ademar ks are ow ned by Sch neider Electric Indust ries S AS or its affiliated com panies . June, 2019 tc
Docume nt Numbe r: 003 -01793-10
Pressure drop over valve
Specification Sheet
Design and Characteristics
The patented plug design of the V241 gives good resistance
against solid particles in the fluid.
The plug is guided throughout the lift, which reduces the risk
for vibrations. The valve closes with the stem up.
The V241 has a metal to metal seat constructed from polished Stainless steel for a resilient and low leakage close off
performance.
The flow characteristics of the V241 is equal percentage
modified. This characteristic makes it possible to control low
flow rates down to almost closed position. This is particularly
important for achieving good control performance in systems
with wide load variations.
Flow Characteristics Chart
Flow
100
80
60
40
20
0
0 20 40 60 80 100
Installed characteristics β = 0,5
Relative
valve lift
Cavitation
Cavitation takes place in a valve when the velocity of the fluid
media over the plug and seat increases to such an extent
that gas bubbles are created.
As the fluid passes over the seat and the velocity decreases,
these gas bubbles collapse (implode), generating considerable noise and erosion to the valve trim.
The cavitation diagram provides guidance as to the cavitation zone where this phenomae will exist.
Chart usage:
1. Using the static pressure before the valve (e.g. 1000
kPa), plot the horizontal line to the line for the temperature of the liquid (e.g. 120 °C).
2. From the intersection point, plot a vertical line downwards and read off the max.permissible pressure drop
across the valve.
3. If the computed pressure drop exceeds the value from
the diagram there is risk for cavitation.
Pressure drop chart at the beginning of Cavitation
(kPa) Static pressure before valve
140C
1600
160C
1400
1200
1000
800
600
400
200
0
0 100 200 300 400 500 600 kPa
120C
100C
80C
20C
June, 2019 tc ©2019 Schn eider El ectri c. All rights res erve d. All tr ademar ks are ow ned by Sch neider Electric Indust ries S AS or its affiliated com panies .
Document Number: 003-01793-10
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