Page 1
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
Page 2
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
Page 3
Specification Sheet
Actuator Selection
Use the diagram below to select actuator for the V241 to close required ∆Pc.
M1500/MV15B
M800 (close)
M400, M310
MG350
∆
©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
Page 4
Page 5
End Connection Accessories
Internal Thread Connection
Valve
Size
DN ø d1* mm w/Packing, std w/Packing, spec.**
15 R ½” 146 911 2100 015 911 2103 015
20 R ¾” 146 911 2100 020 911 2103 020
25 R 1” 159 911 2100 025 911 2103 025
32 R 1¼” 169 911 2100 032 911 2103 032
40 R 1½” 197 911 2100 040 911 2103 040
50 R 2” 222 911 2100 050 911 2103 050
* Thread according to ISO 7/1
** The accessory combination “w/Packing, special” is intended for
the primary circuit of district heating connections.
Int.
thread
AA1 Part No. for connection, one pkg./port
Specification Sheet
ø d1
AA1
Materials
Union nut malleable iron casting, galv.
Union end malleable iron casting, galv.
Soldering Type Connection
Valve
15 15 136 911 2101 015 911 2104 015
20 22 146 911 2101 020 911 2104 020
25 28 155 911 2101 025 911 2104 025
32 35 163 911 2101 032 911 2104 032
40 42 200 911 2101 040 911 2104 040
50 54 232 911 2101 050 911 2104 050
* The accessory combination “w/Packing, special” is intended for the
primary circuit of district heating connections.
Materials
Union nut malleable iron casting, galv.
Union end Bronze, Stainless steel SS 5204
Packing, standard Klingersil C4400
or Packing, spec Klingersil Top chem
1,5 mm
ø d2 AA2 Part No. for connection, one pkg./port
Size
DN mm w/Packing, std w/Packing, spec.*
Welded Type Connection
Valve
15 21.3 182 911 2102 015 911 2105 015 1)
20 26.9 182 911 2102 020 911 2105 020 1)
25 33.7 187 911 2102 025 911 2105 025 1)
32 42.4 197 911 2102 032 911 2105 032 1)
40 48.3 232 911 2102 040 911 2105 040
50 60.3 262 911 2102 050 911 2105 050
1) Material Union nut: Brass SS 5252
* The accessory combination “w/Packing, special” is intended for
the primary circuit of district heating connections.
Materials
Union nut malleable iron casting, galv. (except 1)
Union end Stainless Steel SS 2172, SS 2174
Packing, standard Klingersil C4400
or Packing, spec Klingersil Top chem
1,5 mm
ø d3 AA3 Part No. for connection, one pkg./port
Size
DN mm w/Packing, std w/Packing, spec.*
Packing, standard Klingersil C4400
or Packing, spec Klingersil Top chem
1,5 mm
ø d2
AA2
ø d3
AA3
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
Page 6
Specification Sheet
Dimensions And Weight
K
A
Valve
Size DN
H
C
15 100 36 109.5 23.5 20 25 1.0
20 100 38 116 30 20 32 1.2
25 105 39 120 34 20 38 1.4
32 105 39 121 35 20 50 1.8
40 130 48.5 128.5 42.5 20 57 2.6
50 150 58 139 53 20 70 4.3
Dimensions (mm)
A B C E H
Weigh
K
kg
E
B
©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
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