Features & Benefits

Inline design

Inline flow allows high pressure drops without noise.

Adjustable set-point

Delivers desired differential pressure ensuring accurate balancing.

Technical description

Application:

Heating and cooling systems.
Installation in supply pipe.

Functions:

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

Dimensions:

DN 15-125

Pressure class:

DN 15-50: PN 25
DN 65-125: PN 25 / PN 16

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:
DN 15-50: Maximum value (30, 60, 100 resp. 150 kPa).
DN 65-125: Midway min./max. value (~18, ~35, ~55 resp. ~105 kPa).

Temperature:

Max. working temperature: 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
Membranes and gaskets: EPDM
Adjustment ring: DN 15-50 Ryton PPS, DN 65-125 R St 37-2 steel.

Surface treatment:

Electrophoretic painting.

Marking:

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

Connection:

DN 15-50: External threads according to ISO 228. (Separate connections with NPT threads available.)
DN 65-125: Flanges according to ASME/ANSI B16.42 Class 150.

Articles

DN 15-50

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

External thread according to ISO 228.

Included: Capillary pipe (Ø6) 2 x 1 200 mm, connection set (G1/2+G3/4) for capillary pipe to e.g. STAD and 2 capillary pipe connections 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
52
4
1,5
3831112505476
52 763-120
25/32
G1 1/4
125
150
51
57
12
2,6
3831112503953
52 763-125
40/50
G2
162
190
70
75
30
5,8
3831112504042
52 763-140
10-60 kPa
15/20
G1
106
116
41
52
4
1,5
3831112505377
52 761-120
25/32
G1 1/4
125
150
51
57
12
2,6
3831112504134
52 761-125
40/50
G2
162
190
70
75
30
5,8
3831112504196
52 761-140
10-100 kPa
15/20
G1
106
116
41
52
4
1,5
3831112504189
52 760-120
25/32
G1 1/4
125
150
51
57
12
2,6
3831112504004
52 760-125
40/50
G2
162
190
70
75
30
5,8
3831112504103
52 760-140
60-150 kPa
15/20
G1
106
116
41
52
4
1,5
3831112504233
52 762-120
25/32
G1 1/4
125
150
51
57
12
2,6
3831112504141
52 762-125
40/50
G2
162
190
70
75
30
5,8
3831112504158
52 762-140

*) Length incl adjustment ring.

DN 65-125

Flanges – Do not need any separate connections.

Flanges according to ASME/ANSI B16.42 Class 150.

Included: Capillary pipe (Ø6) 2 x 1 500 mm and 2 capillary pipe connections R1/4 (M14x1 mounted on valve).

Class 150

DN
D
L
Kvs
Kg
EAN
Article No
5-30 kPa
65
210
160
60
18
3831112529885
52 768-665
80
210
160
60
18
3831112529922
52 768-680
100
320
254
150
58
3831112529809
52 768-690
125
320
254
150
58
3831112529847
52 768-691
10-60 kPa
65
210
160
60
18
3831112529878
52 768-765
80
210
160
60
18
3831112529915
52 768-780
100
320
254
150
58
3831112529793
52 768-790
125
320
254
150
58
3831112529830
52 768-791
10-100 kPa
65
210
160
60
18
3831112529861
52 768-865
80
210
160
60
18
3831112529908
52 768-880
100
320
254
150
58
3831112529786
52 768-890
125
320
254
150
58
3831112529823
52 768-891
60-150 kPa
65
210
160
60
18
3831112529892
52 768-965
80
210
160
60
18
3831112529939
52 768-980
100
320
254
150
58
3831112529816
52 768-990
125
320
254
150
58
3831112529854
52 768-991


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

→ = Flow direction

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 DAF 516.

Accessories

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

Capillary pipe

Ø6 mm

2 pcs included in DAF 516.

L [m]
Ø
DN
EAN
Article No
1,2
6 mm
15-50
3831112527157
52 759-215
1,5
6 mm
65-125
3831112527164
52 759-265

Brass/EPDM

Venting screw

Brass/EPDM

d
EAN
Article No
M6
3831112527980
52 759-211

For capillary pipe Ø6 mm with R1/4, R1/8 and M14 connection.

Capillary pipe connection

For capillary pipe Ø6 mm with R1/4, R1/8 and M14 connection.

DN 15-50: 2 pcs R1/4 included in DAF 516 (2 pcs R1/8 mounted on valve).
DN 65-125: 2 pcs R1/4 included in DAF 516 (2 pcs M14x1 mounted on valve).

DN
EAN
Article No
6 x R1/4
15-125
3831112527355
52 759-201
6 x R1/8
15-32
3831112533868
52 759-213
6 x R1/8
40-50
3831112533875
52 759-218
6 x M14x1
65-125
3831112535145
52 759-214

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 (Ø6) and 1 support bush are included in DAF 516, DN 15-50.

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

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

DAF516_DN80_CAD

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DAF516_DN25_32_CAD

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Technical specifications

Installation instructions

Legal documents

Drawings

2D3D