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
Diaphragms 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, DN, PN, Material, Kvs, Δp and flow direction arrow.

Connection:

DN 15-50: Male threads according to ISO 228. (Separate connections with ANSI flanges and UNC threads.)
DN 65-125: Flanges according to ASME/ANSI B16.42 Class 150.

Articles

DN 15-50

Male thread – Separate connections with NPT threads or ANSI flanges – see "Connections for DN 15-50".

Male threads 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, connection set (G1/2+G3/4) for capillary pipe to e.g. STAD/STAF 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

Attention! Must be used on the outlet side.

With ANSI flange (extended)

Attention! Must be used on the outlet side.

According to ASME/ANSI B 16.42 Class 150.

d1
d2
D
L1*
EAN
Article No
G1
1/2"-13 UNC
89
47
3831112511828
52 759-915
G1
1/2"-13 UNC
98,5
47
3831112511842
52 759-920
G1 1/4
1/2"-13 UNC
108
62
3831112511859
52 759-925
G1 1/4
1/2"-13 UNC
117,3
62
3831112511880
52 759-932
G2
1/2"-13 UNC
127
72
3831112511903
52 759-940
G2
5/8"-11 UNC
152,4
72
3831112511507
52 759-950

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


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

Attention! Can be used on the inlet side only.

With ANSI flange

Attention! Can be used on the inlet side only.

According to ASME/ANSI B 16.42 Class 150.

d1
d2
D
L1*
EAN
Article No
G1
1/2"-13 UNC
89
10
3831112511811
52 759-815
G1
1/2"-13 UNC
98,5
20
3831112511835
52 759-820
G1 1/4
1/2"-13 UNC
108
5
3831112511866
52 759-825
G1 1/4
1/2"-13 UNC
117,3
15
3831112511873
52 759-832
G2
1/2"-13 UNC
127
5
3831112511897
52 759-840
G2
5/8"-11 UNC
152,4
20
3831112511491
52 759-850

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

With female 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
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.

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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Technical specifications

Installation instructions

Legal documents

Drawings

2D3D