DAL 516

These compact differential pressure controllers for heating and cooling systems are particularly effective in situations requiring high temperatures and/or pressure drop. These valves are also suitable for use on the secondary side in district heating and comfort cooling systems. Rust protection is assured thanks to the electrophoretically painted ductile iron body.

Produktinformasjon

Differential pressure controller with adjustable set-point and flow limitation

These compact differential pressure controllers for heating and cooling systems are particularly effective in situations requiring high temperatures and/or pressure drop. These valves are also suitable for use on the secondary side in district heating and comfort cooling systems. Rust protection is assured thanks to the electrophoretically painted ductile iron body.

Technical description

Application:

Central heating, cooling systems and in district heating substations.

Functions:

Differential pressure control and flow limitation.
Closes at increasing Δp.

Dimensions:

DN 15-125

Pressure class:

PN 25
DN 100-125: PN 16 and PN 25

Max. differential pressure (ΔpV):

1600 kPa = 16 bar

Setting range:

Differential pressure adjustable 5-30 kPa, 10-60 kPa, 10-100 kPa and 60-150 kPa.

Temperature:

Max. working temperature: 120°C
Min. working temperature: -10°C

Media:

Water and neutral fluids, water-glycol mixtures.

Material:

Valve body: Ductile iron EN-GJS-400
Diaphragm and seals: EPDM

Surface treatment:

Electrophoretic painting.

Marking:

TA, DN, PN and flow direction arrow.

Flanges:

DN 15-50 (optional): According to EN-1092-2:1997, type 16.
DN 65-125: According to EN-1092-2:1997, type 21.

Product Articles

Articles

DN 15-50

1200 mm capillary pipe (Ø6) included.

PN 25

DN
d
D
L
H2
Kvs
Kg
EAN
Article No
5-30 kPa
15/20
G1
97
136
52
4
1,4
52 763-720
25/32
G1 1/4
112
186
57
12
2,4
52 763-725
40/50
G2
146
238
71
30
4,4
52 763-740
10-60 kPa
15/20
G1
97
136
52
4
1,4
52 761-220
23/32
G1 1/4
112
186
57
12
2,4
52 761-225
40/50
G2
146
238
71
30
4,4
52 761-240
10-100 kPa
15/20
G1
97
136
52
4
1,4
52 760-220
25/32
G1 1/4
112
186
57
12
2,4
52 760-225
40/50
G2
146
238
71
30
4,4
52 760-240
60-150 kPa
15/20
G1
97
136
52
4
1,4
52 762-220
25/32
G1 1/4
112
186
57
12
2,4
52 762-225
40/50
G2
146
238
71
30
4,4
52 762-240

DN 65-125

1500 mm capillary pipe (Ø6) included.

PN 25 (DN 65 and 80 also fit PN 16 flanges)

DN
D
L
H1
Kvs
Kg
EAN
Article No
5-30 kPa
65
220
290
180
60
24
52 763-765
80
220
310
183
60
26
52 763-780
100
320
350
174
150
58
52 763-790
125
320
400
175
150
62
52 763-791
10-60 kPa
65
220
290
180
60
24
52 761-265
80
220
310
183
60
26
52 761-280
100
320
350
174
150
58
52 761-290
125
320
400
175
150
62
52 761-291
10-100 kPa
65
220
290
180
60
24
52 760-265
80
220
310
183
60
26
52 760-280
100
320
350
174
150
58
52 760-290
125
320
400
175
150
62
52 760-291
60-150 kPa
65
220
290
180
60
24
52 762-265
80
220
310
183
60
26
52 762-280
100
320
350
174
150
58
52 762-290
125
320
400
175
150
62
52 762-291

PN 16

DN
D
L
H1
Kvs
Kg
EAN
Article No
5-30 kPa
100
320
350
174
150
58
52 763-690
125
320
400
175
150
62
52 763-691
10-60 kPa
100
320
350
174
150
58
52 761-690
125
320
400
175
150
62
52 761-691
10-100 kPa
100
320
350
174
150
58
52 760-690
125
320
400
175
150
62
52 760-691
60-150 kPa
100
320
350
174
150
58
52 762-690
125
320
400
175
150
62
52 762-691

→ = Flow direction

Connections for DN 15-50

With female thread

Threads according to ISO 228

d1
d2
L1*
EAN
Article No
G1
G1/2
26
3831112501027
52 759-015
G1
G3/4
32
3831112501034
52 759-020
G1 1/4
G1
47
3831112501041
52 759-025
G1 1/4
G1 1/4
52
3831112501058
52 759-032
G2
G1 1/2
52
3831112503489
52 759-040
G2
G2
64,5
3831112503205
52 759-050

With female thread Rc

Threads according to ISO 7-1

d1
d2
L1*
EAN
Article No
G1
Rc1/2
26
3831112527454
52 751-301
G1
Rc3/4
32
3831112527461
52 751-302
G1 1/4
Rc1
47
3831112527478
52 751-303
G1 1/4
Rc1 1/4
52
3831112527485
52 751-304
G2
Rc1 1/2
52
3831112527492
52 751-305
G2
Rc2
64,5
3831112527508
52 751-306

With male thread

Threads according to ISO 7

d1
d2
L1*
EAN
Article No
G1
R1/2
34
3831112500983
52 759-115
G1
R3/4
40
3831112500990
52 759-120
G1 1/4
R1
40
3831112501003
52 759-125
G1 1/4
R1 1/4
45
3831112501010
52 759-132
G2
R1 1/2
45
3831112503342
52 759-140
G2
R2
50
3831112503472
52 759-150

For welding

d1
D
L1*
EAN
Article No
G1
20,8
37
3831112500945
52 759-315
G1
26,3
42
3831112500952
52 759-320
G1 1/4
33,2
47
3831112500969
52 759-325
G1 1/4
40,9
47
3831112500976
52 759-332
G2
48,0
47
3831112501140
52 759-340
G2
60,0
52
3831112501294
52 759-350

With flange

Attention! Can be used on the inlet side only.

d1
d2
D
L1*
EAN
Article No
G1
M12
95
10
3831112501065
52 759-515
G1
M12
105
20
3831112501072
52 759-520
G1 1/4
M12
115
5
3831112504318
52 759-525
G1 1/4
M16
140
15
3831112501096
52 759-532
G2
M16
150
5
3831112504325
52 759-540
G2
M16
165
20
3831112501317
52 759-550

With flange (extended)

Attention! Must be used on the outlet side.

d1
d2
D
L1*
EAN
Article No
G1
M12
95
47
3831112501157
52 759-615
G1
M12
105
47
3831112500136
52 759-620
G1 1/4
M12
115
62
3831112503533
52 759-625
G1 1/4
M16
140
62
3831112526129
52 759-632
G2
M16
150
72
3831112505025
52 759-640
G2
M16
165
72
3831112503892
52 759-650

*) Fitting length (from the gasket surface to the end of the connection).

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