Features & Benefits

Inline design

Inline flow allows high pressure drops without noise.

Adjustable set-point

Delivers desired differential pressure ensuring accurate balancing.

Measuring point

Simplifies the balancing procedure, increases its accuracy and enables troubleshooting.

Technical description

Application:

Heating and cooling systems.
Installation in the return pipe.

Functions:

Differential pressure control
Pre-setting Δp over the load (ΔpL)
Measuring (ΔpL)

Dimensions:

DN 15-50

Pressure class:

PN 25

Max. differential pressure (ΔpV):

1600 kPa = 16 bar

Setting range:

Δp over the load is adjustable within:
5-30 kPa, 10-60 kPa, 10-100 kPa or 60-150 kPa.
Delivery setting:
Maximum value (30, 60, 100 resp. 150 kPa).

Temperature:

Max. working temperature:
- with measuring points: 120°C
- without measuring points: 150°C
Min. working temperature: -10°C

Media:

Water or neutral fluids, water-glycol mixtures (0-57%).

Material:

Valve body: Ductile iron EN-GJS-400-15
Membrans and gaskets: EPDM
Adjustment ring: Ryton PPS

Surface treatment:

Electrophoretic painting.

Marking:

IMI TA, Size, PN, Material, Kvs/Cvs, Δp and flow direction arrow.

Connection:

External threads according to ISO 228.

Separate connections with NPT threads available.

Articles

Without measuring points (max. 150°C)

External thread according to ISO 228.

Separate connections with NPT threads – see "Connections for DN 15-50".

Included: Capillary pipe (Ø6) 1 200 mm, connection set (G1/2+G3/4) for capillary pipe to e.g. STAD and 1 capillary pipe connection R1/4 (R1/8 mounted on valve).

PN 25

DN
d
L
L1*
H1
H2
Kvs
Kg
EAN
Article No
5-30 kPa
15/20
G1
106
116
41
57
4
1,5
3831112528468
52 752-720
25/32
G1 1/4
125
150
51
70
12
2,6
3831112528659
52 752-725
40/50
G2
162
190
70
82
30
5,8
3831112528697
52 752-740
10-60 kPa
15/20
G1
106
116
41
57
4
1,5
3831112528451
52 754-620
25/32
G1 1/4
125
150
51
70
12
2,6
3831112528642
52 754-625
40/50
G2
162
190
70
82
30
5,8
3831112528680
52 754-640
10-100 kPa
15/20
G1
106
116
41
57
4
1,5
3831112528444
52 760-320
25/32
G1 1/4
125
150
51
70
12
2,6
3831112528635
52 760-325
40/50
G2
162
190
70
82
30
5,8
3831112528673
52 760-340
60-150 kPa
15/20
G1
106
116
41
57
4
1,5
3831112528475
52 760-920
25/32
G1 1/4
125
150
51
70
12
2,6
3831112528666
52 760-925
40/50
G2
162
190
70
82
30
5,8
3831112528703
52 760-940

*) Length incl adjustment ring.


Kvs = m3/h at a pressure drop of 1 bar and fully open valve.

→ = Flow direction

With measuring points (max. 120°C)

External thread according to ISO 228.

Separate connections with NPT threads – see "Connections for DN 15-50".

Included: Capillary pipe (Ø6) 1 200 mm, connection set (G1/2+G3/4) for capillary pipe to e.g. STAD and 1 capillary pipe connection R1/4 (R1/8 mounted on valve).

PN 25

DN
d
L
L1*
H1
H2
Kvs
Kg
EAN
Article No
5-30 kPa
15/20
G1
106
116
41
85
4
1,5
3831112507111
52 795-020
25/32
G1 1/4
125
150
51
98
12
2,6
3831112507159
52 795-025
40/50
G2
162
190
70
110
30
5,8
3831112507197
52 795-040
10-60 kPa
15/20
G1
106
116
41
85
4
1,5
3831112507104
52 795-120
25/32
G1 1/4
125
150
51
98
12
2,6
3831112507142
52 795-125
40/50
G2
162
190
70
110
30
5,8
3831112507180
52 795-140
10-100 kPa
15/20
G1
106
116
41
85
4
1,5
3831112507098
52 795-220
25/32
G1 1/4
125
150
51
98
12
2,6
3831112507135
52 795-225
40/50
G2
162
190
70
110
30
5,8
3831112507173
52 795-240
60-150 kPa
15/20
G1
106
116
41
85
4
1,5
3831112507128
52 795-320
25/32
G1 1/4
125
150
51
98
12
2,6
3831112507166
52 795-325
40/50
G2
162
190
70
110
30
5,8
3831112507203
52 795-340
Connections for DN 15-50

Threads according to ANSI/ASME B1.20.1-1983.Swivelling nut

With internal thread NPT

Threads according to ANSI/ASME B1.20.1-1983.
Swivelling nut

d1
d2
L1*
EAN
Article No
G1 1/4
1 NPT
73
3831112533394
52 751-307
G1 1/4
1 1/4 NPT
80
3831112533400
52 751-308
G2
1 1/2 NPT
82
3831112533417
52 751-309
G2
2 NPT
93
3831112533424
52 751-310

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


Other types of connections (ISO), see international version of DA 516.

Accessories

Capillary pipe

Ø6 mm

1 pc included in DA 516.

L [m]
Ø
EAN
Article No
1,2
6 mm
3831112527157
52 759-215

Capillary pipe connection with shut-off

For connection of Ø6 mm capillary pipe to STAF/STAF-SG.

d
D
For DN
EAN
Article No
G1/4
6
20-50
7318793999504
52 265-209
G3/8
6
65-400
7318793999405
52 265-208

Max 120°C (intermittent 150°C)AMETAL®/EPDM

Measuring point

Max 120°C (intermittent 150°C)
AMETAL®/EPDM

d
L
EAN
Article No
M14x1
44
7318792813207
52 179-014
M14x1
103
7318793858108
52 179-015

For capillary pipe Ø6 mm with R1/4 and R1/8 connection.

Capillary pipe connection

For capillary pipe Ø6 mm with R1/4 and R1/8 connection.

1 pc R1/4 included in DA 516 (R1/8 mounted on valve)

DN
EAN
Article No
6 x R1/4
15-50
3831112527355
52 759-201
6 x R1/8
15-32
3831112533868
52 759-213
6 x R1/8
40-50
3831112533875
52 759-218

Suitable when insulation is used.Stainless steel/EPDM/Brass.

Venting extension

Suitable when insulation is used.
Stainless steel/EPDM/Brass.

d
D
L
EAN
Article No
M6
12
70
3831112531727
52 759-220

Must be used on STAD when connection of Ø6 mm capillary pipe.

Connection set STAD

Must be used on STAD when connection of Ø6 mm capillary pipe.

2 transition nipples (G1/2 and G3/4), 1 thrust nut (Ø6), 1 cone and 1 support bush are included in DA 516.

d
EAN
Article No
G1/2
7318793850003
52 762-006
G3/4
7318793850102
52 762-106

Can be installed without draining of the system.AMETAL®/Stainless steel/EPDM

Measuring point, extension 60 mm

Can be installed without draining of the system.
AMETAL®/Stainless steel/EPDM

L
EAN
Article No
60
7318792812804
52 179-006

For connection of Ø6 mm copper pipe while permitting simultaneous use of our balancing instrument.

Measuring point, two-way

For connection of Ø6 mm copper pipe while permitting simultaneous use of our balancing instrument.

D
H
EAN
Article No
6
68
7318793848703
52 179-206

Brass/EPDM

Venting screw

Brass/EPDM

d
EAN
Article No
M6
3831112527980
52 759-211

52795020

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52795025

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52754640

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52762006

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DA516_DN15_20_pers_kat

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52760340

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52752720

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52760325

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52795225

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52795040

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52795125

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52795320

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52795220

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52760940

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52795120

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52752725

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52754625

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52754620

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52760320

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52795140

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52795240

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52762106

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52752740

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DA516_DN15_20_w-o_m-point_persp

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52760920

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52760925

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52795325

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52795340

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Technical specifications

Installation instructions

Legal documents

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