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Control valve
VLA300, VLB300
Series VLA-VLB are 2-way and 3-way control valves with flange connection PN16 and higher flow rates, suitable for mixing and flow regulation up to 16 bar. The valves are made of high-performing nodular iron allowing use in heating and cooling installations. The VLA-VLB series is available in 2-way DN15-DN150 ; 3-way DN15-150 and comes with one type of connection. The valve is perfectly combined with ESBE actuators and controllers.
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Superb regulation for best mixing and flow regulating performance up to 16 bar (PN16).
Real low internal leakrate and 100% tested product.
Long lasting and high durability.
Perfect match between the valve and ESBE actuators.
Product range
VLA325
VLB325
VLA335
VLB335
2-way Control valve series VLA325
Art.no.
Reference
DN
Kvs*
* Kvs-value in m3/h at a pressure drop of 1 bar.
A mm
B mm
C mm
D mm
E mm
F mm
G mm
H mm
Weight kg
Note
NTC
NTC = National Trade Code
21200100
VLA325
15
1.6
130
42
123
4x14
20
38
95
65
2.1
21200200
VLA325
15
2.5
130
42
123
4x14
20
38
95
65
2.1
21200300
VLA325
15
4
130
42
123
4x14
20
38
95
65
2.1
21200400
VLA325
20
6.3
150
44
126
4x14
20
41
105
75
2.6
21200500
VLA325
25
10
160
44
131
4x14
20
46
115
85
3.2
21200600
VLA325
32
16
180
58
144
4x19
20
60
140
100
4.6
21200700
VLA325
40
25
200
60
146
4x19
20
61
150
110
5.8
21200800
VLA325
50
38
230
74
161
4x19
20
76
165
125
8.0
2-way Control valve series VLB325
Art.no.
Reference
DN
Kvs*
* Kvs-value in m3/h at a pressure drop of 1 bar.
A mm
B mm
C mm
D mm
E mm
F mm
G mm
H mm
Weight kg
Note
NTC
NTC = National Trade Code
21220100
VLB325
65
63
290
175
155
4x18
25
95
185
145
23.0
Replaces 21203100, 21202100
21220200
VLB325
80
100
310
187
165
8x18
45
105
200
160
30.0
Replaces 21203200, 21202200
21220300
VLB325
100
130
350
207
176
8x18
45
116.5
220
180
45.6
Replaces 21203300, 21202300
21220400
VLB325
125
200
400
234
199
8x18
45
139
250
210
55.0
Replaces 21203400, 21202400
21220500
VLB325
150
300
480
277
217
8x22
45
157
285
240
71.0
Replaces 21203500, 21202500
3-way Control valve series VLA335
Art.no.
Reference
DN
Kvs*
* Kvs-value in m3/h at a pressure drop of 1 bar.
A mm
B mm
C mm
D mm
E mm
F mm
G mm
H mm
Weight kg
Note
NTC
NTC = National Trade Code
21200900
VLA335
15
1.6
130
65
123
4x14
20
38
95
65
2.5
21201000
VLA335
15
2.5
130
65
123
4x14
20
38
95
65
2.5
21201100
VLA335
15
4
130
65
123
4x14
20
38
95
65
2.5
21201200
VLA335
20
6.3
150
75
126
4x14
20
41
105
75
3.2
21201300
VLA335
25
10
160
80
131
4x14
20
46
115
85
3.8
21201400
VLA335
32
16
180
90
144
4x19
20
60
140
100
6.6
21201500
VLA335
40
25
200
100
146
4x19
20
61
150
110
7.5
21201600
VLA335
50
38
230
115
161
4x19
20
76
165
125
10.0
3-way Control valve series VLB335
Art.no.
Reference
DN
Kvs*
* Kvs-value in m3/h at a pressure drop of 1 bar.
A mm
B mm
C mm
D mm
E mm
F mm
G mm
H mm
Weight kg
Note
NTC
NTC = National Trade Code
21221100
VLB335
65
63
290
145
155
4x18
25
95
185
145
19.0
Replaces 21203600, 21202600
21221200
VLB335
80
100
310
155
165
8x18
45
105
200
160
24.0
Replaces 21203700, 21202700
21221300
VLB335
100
130
350
175
176
8x18
45
116.5
220
180
32.0
Replaces 21203800, 21202800
21221400
VLB335
125
200
400
200
199
8x18
45
139
250
210
46.0
Replaces 21203900, 21202900
21221500
VLB335
150
300
480
240
217
8x22
45
157
285
240
61.0
Replaces 21204000, 21203000
Installation support
Installation examples
2-way Control Valves,
Installation without local circulating pump
2-way Control Valves
Installation with local circulating pump
3-way Control Valves,
Installation without local circulating pump
3-way Control Valves,
Installation with local circulating pump
3-way Control Valves,
Installation with local circulating pump
Installation instruction
VLB325, VLB335
Technical data
Suitable application area
Recommended
Heating
Comfort Cooling
Solar heating
Ventilation
District Heating
District Cooling
Technical data
DN 15-50
Type: 2- and 3-way plug valve
Pressure class: PN 16
Flow characteristic A-AB: EQM
Flow characteristic B-AB: Complementary
Stroke: 20 mm
Rangeability Kv/Kv min: see graph
Leakrate A-AB: Tight sealing
Leakrate B-AB: Tight sealing
∆P max: see graph
Media temperature, max.: +130 °C
Media temperature, min.: -20 °C
Connection, Flange: ISO 7005-2
DN 65-150
Type: 2- and 3-way plug valve
Pressure class: PN 16
Flow characteristic A-AB: EQM
Flow characteristic B-AB: Linear
Stroke, DN65: 25 mm
Stroke, DN80-150: 45 mm
Rangeability Kv/Kv min: >50
Leakrate A-AB: 0.03% of Kvs
Leakrate B-AB: 2% of Kvs
∆P max, mixing: 200 kPa
∆P max, diverting: 70 kPa
Media temperature, max.: +150 °C
Media temperature, min.: -10 °C
Connection, Flange: ISO 7005-2
Material DN 15-50
Body: Nodular iron, EN-JS 1030
Stem: Stainless steel, SS 2346
Plug: Brass, CW 602N
Seat: Nodular iron, EN-JS 1030
Blind plug: Brass, CW 602N
Seat seal: EPDM
Packing box seal: PTFE/EPDM
Material DN 65-150
Body: Grey cast iron, EN-JL 1040
Stem: Stainless steel, DIN 1.4305
Plug: Brass CW617N
Seat: Grey cast iron, EN-JL 1040
Seat seal: Metallic
Packing box seal: EPDM
Conformity, DN 15-50:
PED 2014/68/EU, article 4.3
Conformity, DN 65-150:
PED 2014/68/EU, Annex IV
Valve characteristics
2-way valves, DN 15-50
.
2-way valves, DN 65-150
.
3-way valves, DN 15-50
.
3-way valves, DN 65-150
Dimensioning
Dimensioning guide - Please see data sheet
Accessories and spare parts
Adaptor kits
Image
Art.no.
Reference
Designation
National trade code
Note
Data sheet
Instructions manual
VLA821
Adaptor kit Siemens SQX actuators.
26000700
VLA821
Siemens SQX actuators
For valves DN 15-50.
Spare parts
Image
Art.no.
Reference
Designation
National trade code
Note
Data sheet
Instructions manual
VLA901
Exchange kit VLA901 Packing box.
27000100
VLA901
Exchange kit VLA901 Packing box
Applies to valve type VLAxxx, VLExxx
VLB901
Exchange kit VLB901 Packing box
27000700
VLB901
Exchange kit VLB901 Packing box
Applies to valve type VLB1xx, VLB2xx
VLB903
Exchange kit VLB903 Packing box
27000800
VLB903
Exchange kit VLB903 Packing box
Applies to valve type VLB3xx
Download area
Find here direct related product information for download. If you don’t find your specific need here please look further into below mentioned "Quick links" or this website's “Search” and “Support” area.
Data Sheet
VLA300, VLB300
Installation instruction
VLB325, VLB335
Certificate
Declaration of Conformity VLA300
Certificate
Declaration of Conformity VLB300
Certificate
Building Product Declaration BPD3 VLA300
Certificate
Building Product Declaration BPD3 VLB300
Guide
Selection guide, Linear Valves & Actuators
Image
VLA325, high res
Image
VLB325, high res
Image
VLA335, high res
Image
VLB335, high res
2D Image
VLA325
2D Image
VLB325
2D Image
VLA335
2D Image
VLB335
3D drawing (stp file)
VLA325, DN15
3D drawing (stp file)
VLA335, DN15
3D drawing (stp file)
VLA325, DN20
3D drawing (stp file)
VLA335, DN20
3D drawing (stp file)
VLA325, DN25
3D drawing (stp file)
VLA335, DN25
3D drawing (stp file)
VLA325, DN32
3D drawing (stp file)
VLA335, DN32
3D drawing (stp file)
VLA325, DN40
3D drawing (stp file)
VLA335, DN40
3D drawing (stp file)
VLA325, DN50
3D drawing (stp file)
VLA335, DN50
Related products
ALFxx1
ALFxx1
Series ALFxx1 (230V version) with 3-point (open / close) signal and proportional (voltage / current) signal.
ALFxx4
ALFxx4
Series ALFxx4 (24V version) with 3-point floating control mode (extend/retract) and modulating / proportional control mode (voltage / current)
ALB100
ALB100
Series ALB100 with voltage proportional or 3-point (open / close) signal.
VLE100, VLE200
VLE100, VLE200
Series VLE are 2-way and 3-way control valves suitable for mixing, diverting (delta P< 50kpa) and flow regulation up to 16 bar.
VLE300
VLE300
Series VLE325 is a 2-way PN16 flanged control valve, especielly designed for replacement of STL valves in existing applications for flow regulation up to 16 bar.
VLC100, VLC200
VLC100, VLC200
Series VLC125-225 are 2-way control valves with flange connection PN25, suitable for flow regulation up to 25 bar.
Related applications
Cooling
Cooling
HVAC
HVAC
Quick Links
ESBE Spare parts guide
ESBE Hydronic selection
Order Support material
ESBE Catalogue online