KTM 512 – Union threads/ANSI flanges

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​​​​​​​ Pressure independent balancing and control valve – size 1/2" - 5" High-performing and compact, these pressure-independent control valves for variable flow heating and cooling systems are particularly effective in situations requiring high temperatures and/or pressure drops. They are also suitable for use on the secondary side in district heating and comfort cooling systems. Rust protection is assured due to the electrophoretically painted ductile iron body, while the plug delivers valve characteristic, suitable for modulating control.

Inline design

Inline flow allows high pressure drops without noise.

Adjustable flow

Ensures the design flow.

Adapters

For use with most available actuators.

Technical description

Application:

Heating and cooling systems.

Functions:

Differential pressure control over the built-in control valve and flow control.

Dimensions:

1/2" - 5"

Pressure class:

Sizes 1/2" - 2": 375 psi
Sizes 2 1/2" - 5": Class 150

Differential pressure (ΔpV):

Max. differential pressure: 232 psi (ΔHmax)
Min. differential pressure:
Low flow (LF): 3.48 psi (ΔHmin)
Normal flow (NF): 5.80 psi (ΔHmin)
High flow (HF): 11.60 psi (ΔHmin)
(Valid for max. position, fully open. Other positions will require lower differential pressure, check with the software HySelect.)

Temperature:

Max. working temperature:
- with measuring points: 248°F
- without measuring points: 302°F
Min. working temperature: 14°F

Media:

Water or neutral fluids, water-glycol mixtures.

Material:

Valve body: Ductile iron EN-GJS-400
Diaphragms and gaskets: EPDM
Valve plug: EPDM/Stainless steel

Surface treatment:

Electrophoretic painting.

Marking:

TA, Size, Class, Cvs, material and flow direction arrow.

Connection:

Sizes 1/2" - 2": Male threads according to EN-1092-2: 1997, type 16. Separate connections with ANSI flanges and UNC threads.
Sizes 2 1/2" - 5": According to ASME/ANSI B 16.42 Class 150.

Actuators:

KTM 512 can be equipped with adapters for the most common actuators - see "Adapters for actuators".
The max. lift of the actuator must be checked. In the case of a shorter lift the maximum achieved flow will be decreased. Consult your local sales office for details.

Max. lift of the control valve:

Sizes 1/2" - 2": 0.394"
Sizes 2 1/2" - 5": 0.787"

Articles – With measuring points (max. 248°F)

1/2" - 2"

Male thread – Separate connections optional.

375 psi

Size
d
D
[in]
L
[in]
H1
[in]
H2
[in]
B
[in]
qmax
[gpm]
lb
EAN
Article No
LF, low flow
1/2"/3/4"
G1
3.07
4.33
1.77
3.86
3.27
3.52
3.3
3831112507692
52 796-220
1"/1 1/4"
G1 1/4
3.82
5.91
2.09
3.70
3.54
14.08
4.4
3831112507722
52 796-225
1 1/2"/2"
G2
4.92
7.48
2.60
3.70
4.17
33.44
9.9
3831112507753
52 796-240
NF, normal flow
1/2"/3/4"
G1
3.07
4.33
1.77
3.86
3.27
4.40
3.3
3831112507708
52 796-020
1"/1 1/4"
G1 1/4
3.82
5.91
2.09
3.70
3.54
16.72
4.4
3831112507739
52 796-025
1 1/2"/2"
G2
4.92
7.48
2.60
3.70
4.17
41.80
9.9
3831112507760
52 796-040
HF, high flow
1/2"/3/4"
G1
3.07
4.33
1.77
3.86
3.27
6.16
3.3
3831112507715
52 796-420
1"/1 1/4"
G1 1/4
3.82
5.91
2.09
3.70
3.54
23.76
4.4
3831112507746
52 796-425
1 1/2"/2"
G2
4.92
7.48
2.60
3.70
4.17
55.44
9.9
3831112507777
52 796-440

2 1/2" - 5"

Flanges – According to ASME/ANSI B16.42 Class 150.

Flanges according to ASME/ANSI B 16.42 Class 150.

Class 150

Size
D
[in]
L
[in]
H1
[in]
H2
[in]
B
[in]
qmax
[gpm]
lb
EAN
Article No
LF, low flow
2 1/2"
8.66
11.42
4.33
6.89
5.35
67.8
48.5
52 764-665
3"
8.66
12.20
4.33
6.89
5.28
73.5
52.9
52 764-680
4"
12.60
13.78
6.30
7.72
7.05
117
119
52 764-690
5"
12.60
15.75
6.30
7.72
7.01
157
128
52 764-691
NF, normal flow
2 1/2"
8.66
11.42
4.33
6.89
5.35
95.0
48.5
52 751-065
3"
8.66
12.20
4.33
6.89
5.28
99.9
52.9
52 751-080
4"
12.60
13.78
6.30
7.72
7.05
181
119
52 751-090
5"
12.60
15.75
6.30
7.72
7.01
242
128
52 751-091
HF, high flow
2 1/2"
8.66
11.42
4.33
6.89
5.35
130
48.5
52 751-165
3"
8.66
12.20
4.33
6.89
5.28
143
52.9
52 751-180
4"
12.60
13.78
6.30
7.72
7.05
223
119
52 751-190
5"
12.60
15.75
6.30
7.72
7.01
294
128
52 751-191

→ = Flow direction

Articles – Without measuring points (max. 302°F)

1/2" - 2"

Male thread – Separate connections optional.

375 psi

Size
d
D
[in]
L
[in]
H1
[in]
H2
[in]
B
[in]
qmax
[gpm]
lb
EAN
Article No
LF, low flow
1/2"/3/4"
G1
3.07
4.33
1.77
3.86
2.17
3.52
3.3
3831112529274
52 761-820
1"/1 1/4"
G1 1/4
3.82
5.91
2.09
3.70
2.44
14.08
4.4
3831112529304
52 761-825
1 1/2"/2"
G2
4.92
7.48
2.60
3.70
3.07
33.44
9.9
3831112529335
52 761-840
NF, normal flow
1/2"/3/4"
G1
3.07
4.33
1.77
3.86
2.17
4.40
3.3
3831112529281
52 762-820
1"/1 1/4"
G1 1/4
3.82
5.91
2.09
3.70
2.44
16.72
4.4
3831112529311
52 762-825
1 1/2"/2"
G2
4.92
7.48
2.60
3.70
3.07
41.80
9.9
3831112529342
52 762-840
HF, high flow
1/2"/3/4"
G1
3.07
4.33
1.77
3.86
2.17
6.16
3.3
3831112529267
52 765-720
1"/1 1/4"
G1 1/4
3.82
5.91
2.09
3.70
2.44
23.76
4.4
3831112529298
52 765-725
1 1/2"/2"
G2
4.92
7.48
2.60
3.70
3.07
55.44
9.9
3831112529328
52 765-740

→ = Flow direction

2 1/2" - 5"

Flanges – According to ASME/ANSI B16.42 Class 150.

Flanges according to ASME/ANSI B 16.42 Class 150.

Class 150

Size
D
[in]
L
[in]
H1
[in]
H2
[in]
qmax
[gpm]
lb
EAN
Article No
LF, low flow
2 1/2"
8.66
11.42
4.33
6.89
67.8
48.5
3831112529588
52 761-965
3"
8.66
12.20
4.33
6.89
73.5
52.9
3831112529618
52 761-980
4"
12.60
13.78
6.30
7.72
117
119
3831112529649
52 761-990
5"
12.60
15.75
6.30
7.72
157
128
3831112529670
52 761-991
NF, normal flow
2 1/2"
8.66
11.42
4.33
6.89
95.0
48.5
3831112529595
52 762-965
3"
8.66
12.20
4.33
6.89
99.9
52.9
3831112529625
52 762-980
4"
12.60
13.78
6.30
7.72
181
119
3831112529656
52 762-990
5"
12.60
15.75
6.30
7.72
242
128
3831112529687
52 762-991
HF, high flow
2 1/2"
8.66
11.42
4.33
6.89
130
48.5
3831112529601
52 765-865
3"
8.66
12.20
4.33
6.89
143
52.9
3831112529632
52 765-880
4"
12.60
13.78
6.30
7.72
223
119
3831112529663
52 765-890
5"
12.60
15.75
6.30
7.72
294
128
3831112529694
52 765-891

→ = Flow direction

Adapters for actuators

For sizes 1/2" - 2"

For recommended actuators

For actuator
EAN
Article No
TA-MC55, TA-MC55Y
3831112512023
52 757-035
TA-MC100
3831112512023
52 757-035

For other actuators

For actuator
EAN
Article No
Belimo NRDVX-3-T-SI
3831112503595
52 757-001
Belimo NRDVX-SR-T-CA
3831112512047
52 757-037
Belimo UNV 002
3831112511972
52 757-029
Belimo UNV 003
3831112512061
52 757-041
Clorius V2.05, V4.10
3831112500167
52 757-016
Danfoss AMV 10, 13, 20, 23
3831112503465
52 757-008
JCI VA-745x
3831112505490
52 757-002
JCI VA-715x, VA-720x, VA-774x
3831112512009
52 757-033
K&P MD200
3831112512030
52 757-036
Honeywell ML
3831112512078
52 757-042
HORA MC25
3831112504950
52 757-024
HORA MC45
3831112511965
52 757-028
Lineg NL
3831112505339
52 757-007
Samson 5825
3831112500259
52 757-011
Schneider Electric FORTA M400, M800
3831112503007
52 757-019
Siemens SQX, SKD, SKB
3831112505360
52 757-022
Siemens SAX
3831112531703
52 757-045
Sauter AVM 104/114
3831112511989
52 757-030
TA-MC100 FSE/FSR
3831112511538
52 757-026
TA-R25
3831112511996
52 757-031
TA-R25 plastic
3831112512054
52 757-038

For sizes 2 1/2" - 5"

For recommended actuators

For actuator
EAN
Article No
TA-MC55, TA-MC55Y
3831112509269
52 757-905
TA-MC100
3831112512085
52 757-907
TA-MC100 FSE/FSR
3831112511781
52 757-912
TA-MC160
3831112511910
52 757-913

For other actuators

For actuator
EAN
Article No
Belimo UNV 003
3831112512283
52 757-901
Belimo NV24 (TA-NV24)
3831112512283
52 757-901
Sauter AVN 224, AVF 234, AVM 234
3831112504486
52 757-904
Schneider Electric Forta
3831112512092
52 757-906
Siemens SQX, SKD, SAX
3831112510661
52 757-903

Connections for size 1/2"-2"

With female thread

Threads according to ISO 228

Swivelling nut

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

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

With female thread Rc

Threads according to ISO 7-1
Swivelling nut

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

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

With male thread

Threads according to ISO 7
Swivelling nut

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

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

For welding

Swivelling nut

d1
D [in]
L1* [in]
EAN
Article No
G1
0.82
1.46
3831112500945
52 759-315
G1
1.04
1.66
3831112500952
52 759-320
G1 1/4
1.31
1.85
3831112500969
52 759-325
G1 1/4
1.61
1.85
3831112500976
52 759-332
G2
1.89
1.85
3831112501140
52 759-340
G2
2.36
2.05
3831112501294
52 759-350

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

With ANSI flange

According to ASME/ANSI B 16.42 Class 150
Length flange to flange according to EN-558-2-1995, series 1.

d1
d2
D [in]
L1* [in]
EAN
Article No
G1
1/2"-13 UNC
3.50
0.394
3831112511811
52 759-815
G1
1/2"-13 UNC
3.88
0.787
3831112511835
52 759-820
G1 1/4
1/2"-13 UNC
4.25
0.197
3831112511866
52 759-825
G1 1/4
1/2"-13 UNC
4.62
0.591
3831112511873
52 759-832
G2
1/2"-13 UNC
5.00
0.197
3831112511897
52 759-840
G2
5/8"-11 UNC
6.00
0.787
3831112511491
52 759-850

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

Accessories

Measuring point, extension 2.36 in.

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

L [in]
EAN
Article No
2.36
7318792812804
52 179-006

Venting extension

Suitable when insulation is used.

d
D [in]
L [in]
EAN
Article No
M6
0.47
2.76
3831112531727
52 759-220

Venting screw

d
EAN
Article No
M6
3831112527980
52 759-211

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