TA-Modulator – NPT threads/ANSI flanges

IMI TA
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​​​​​​​ Pressure independent balancing and control valve for modulating control The new uniquely shaped EQM characteristics provide highly precise temperature control. The valve is compatible with linear proportional or 3-point actuators. A built-in differential pressure controller provides high control authority, control stability and automatic limitation of design flow. Measurement of flow and available pressure enables system optimization and diagnostics.

Precise temperature control

Provide uniquely shaped EQM characteristic for best modulating control.

Precise control

Uniquely shaped EQM characteristic provides an up to 6 times larger operating stroke than linear valves.

Quick hydronic balancing

Automatic flow limitation when actuator is fully open protects entire system against overflows.

Easy troubleshooting

Flow and differential pressure measuring helps to reduce pump consumption and provides all necessary data for system diagnostics.

Technical description

Application:

Heating (not steam) and cooling systems.

Functions:

Control (EQM)
Pre-setting (max. flow)
Differential pressure control
Measuring (ΔH, t, q)
Isolation (for use during system maintenance – see "Leakage rate")

Dimensions:

1/2" – 3"

Pressure class:

1/2" - 2": PN 16 (230 psi)
2 1/2" - 3": Class 150 (362 psi)

Differential pressure (ΔpV):

Max. differential pressure (ΔpVmax):
1/2" - 1 1/4": 87 psi
1/2" - 1": 58 psi*
1 1/2" - 2": 58 psi
2 1/2 - 3": 116 psi
Min. differential pressure (ΔpVmin):
1/2" - 3/4": 2.2 psi
1" - 1 1/4": 3.3 psi
1 1/2" - 3": 4.4 psi
(Valid for maximum setting, fully open. Other settings will require lower differential pressure, check with the software HySelect.)

ΔpVmax = The maximum allowed pressure drop over the valve to fulfill all stated performances.

ΔpVmin = The minimum recommended pressure drop over the valve, for proper differential pressure control.

*) With Δp insert in PPS.

Flow range:

The flow (qmax) can be set within the range:

1/2": 0.41 - 2.11 gpm
3/4": 0.88 - 4.29 gpm
1": 1.50 - 7.71 gpm
1 1/4": 3.17 - 15.84 gpm
1 1/2": 4.40 - 28.6 gpm
2": 9.46 - 49.3 gpm
2 1/2": 18.48 - 106 gpm
3": 26.0 - 164 gpm

qmax = gpm at each setting and fully open valve plug.

Temperature:

1/2" - 1 1/4", 2 1/2" - 3":
Max. working temperature: 248°F
Min. working temperature: -4°F
1/2" - 1" with Δp insert in PPS, 1 1/2" - 2":
Max. working temperature: 194°F
Min. working temperature: 14°F

Media:

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

(For other media contact your local sales office.)

Lift:

1/2" - 3/4": 0.157 in
1" - 1 1/4": 0.256 in
1 1/2" - 2": 0.590 in
2 1/2" - 3": 0.787 in

Rangeability:

1/2" - 1 1/4": >75
1 1/2" - 3": >125

Leakage rate:

Leakage flow ≤ 0.01% of max. qmax (max. setting) and correct flow direction. (Class IV according to EN 60534-4).

Characteristics:

Uniquely shaped EQM, best suited for modulating control.

Material:

Size 1/2" - 1 1/4":
Valve body: AMETAL®
Valve insert: AMETAL® and PPS
Valve plug: Stainless steel
Spindle: Stainless steel
Spindle seal: EPDM O-ring
Δp insert: PPS and AMETAL® or PPS
Membrane: EPDM
Springs: Stainless steel
O-rings: EPDM
Size 1 1/2" - 2":
Valve body: AMETAL®
Valve insert: AMETAL®
Valve plug: AMETAL® and PTFE
Spindle: Stainless steel
Spindle seal: EPDM O-ring
Δp insert: PPS
Membrane: EPDM
Springs: Stainless steel
O-rings: EPDM
Size 2 1/2" - 3":
Valve body: Ductile iron EN-GJS-400
Valve insert: Ductile iron EN-GJS-400 and brass
Valve plug: Stainless steel and EPDM O-ring
Valve seat: Stainless steel
Spindle: Stainless steel
Spindle seal: EPDM
Δp insert: Ductile iron EN-GJS-400, stainless steel and brass.
Membrane: Reinforced EPDM
Springs: Stainless steel
O-rings: EPDM


AMETAL® is the dezincification resistant alloy of IMI Hydronic Engineering.

Surface treatment:

Size 1 1/4" - 2": Non treated
Size 2 1/2" - 3": Electrophoretic painting

Marking:

Black identification ring on measuring point: TA-Modulator and DN.
1/2" - 1 1/4": TA, IMI, PN, DN and flow direction arrow. Grey setting wheel.
1 1/2" - 2": IMI TA, PN, DN, inch size, place of origin and flow direction arrow. Orange setting wheel.
2 1/2" - 3": IMI TA, DN, inch size, material and flow direction arrow. Label with technical specification, place of origin and CE. Orange setting wheel.

Connection:

Size 1/2" - 2": Male thread according to ISO 228. Connections (accessories) with female and male thread NPT according to ANSI/ASME B1.20.1-1983, or for soldering according to ASME/ANSI B16.18.
Size 2 1/2" - 3": Flanges according to ASME 7 ANSI B16.42 Class 150.

Connection to actuator:

1/2" - 1 1/4": M30x1.5, push
1 1/2" - 2": M30x1.5, push/pull
2 1/2" - 3": 2xM8, push/pull

Actuators:

1/2" - 3/4": TA-Slider 160, EMO TM, EMO 3 (3-point), TA-ACTM (fail-safe).
1"- 1 1/4": TA-Slider 160, TA-MC50-C* (3-point).
1 1/2" - 2": TA-Slider 500, TA-Slider 750* (3-point).
2 1/2" - 3": TA-Slider 750, TA-MC100 FSE/FSR (fail-safe).
*) Adapter needed - see "Adapters for actuators".

For more details on actuators, see separate technical leaflets.

Articles

Size 1/2" - 1 1/4" – Temperature -4 – +248°F, ΔpV max. 87 psi

Male threads according to ISO 228.

NPT threads - see "Connections".

Size
(DN)
D
L [in]
H1 [in]
H2 [in]
B [in]
qmax [gpm]
Weight [lb]
EAN
Article No
1/2"
15
G3/4
2.91
2.17
2.17
2.13
2.11
1.32
7318794033405
52 164-415
3/4"
20
G1
3.35
2.52
2.17
2.52
4.29
1.65
7318794033504
52 164-420
1"
25
G1 1/4
3.66
2.52
2.64
2.52
7.71
1.98
7318794033603
52 164-425
1 1/4"
32
G1 1/2
4.61
3.07
2.76
3.07
15.8
3.31
7318794027305
52 164-332

*) Connection to actuator.

→ = Flow direction

Size 1/2" - 1" – Temperature +14 – +194°F, ΔpV max. 58 psi

Male threads according to ISO 228.

NPT threads - see "Connections".

Size
(DN)
D
L [in]
H1 [in]
H2 [in]
B [in]
qmax [gpm]
Weight [lb]
EAN
Article No
1/2"
15
G3/4
2.91
2.17
2.17
2.13
2.11
1.19
7318794027008
52 164-315
3/4"
20
G1
3.35
2.52
2.17
2.52
4.29
1.52
7318794027107
52 164-320
1"
25
G1 1/4
3.66
2.52
2.64
2.52
7.71
1.74
7318794027206
52 164-325

*) Connection to actuator.

→ = Flow direction

Size 1 1/2" - 2" – Temperature +14 – +194°F, ΔpV max. 58 psi

Male threads according to ISO 228.

NPT threads - see "Connections".

Size
(DN)
D
L [in]
H [in]
B [in]
qmax [gpm]
Weight [lb]
EAN
Article No
1 1/2"
40
G2
7.36
5.20
3.46
28.6
7.72
7318794030602
52 164-340
2"
50
G2 1/2
7.72
5.31
3.46
49.3
8.60
7318794030701
52 164-350

*) Connection to actuator.

→ = Flow direction

Size 2 1/2" - 3" – Temperature -4 – +248°F, ΔpV max. 116 psi

Flanges according to ASME 7 ANSI B16.42 Class 150.

Size
(DN)
D [in]
L [in]
H [in]
qmax [gpm]
Weight [lb]
EAN
Article No **
North America
Article No
International
Class 150
2 1/2"
65
7.09
11.42
9.80
106
39.9
3831112533295
322021-11004
322021-11003
3"
80
7.48
12.20
10.24
164
47.8
3831112533332
322021-11104
322021-11103

*) Connection to actuator.


**) Distributed by Victaulic.

→ = Flow direction

Connections

With female thread NPT

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

Brass/AMETAL®

Valve size
D
D1
L [in] *
EAN
Article No
1/2"
G3/4
1/2 NPT
0.98
7318794017900
52 163-215
3/4"
G1
1/2 NPT
0.71
7318794018303
52 163-320
3/4"
G1
3/4 NPT
0.91
7318794018006
52 163-220
1"
G1 1/4
3/4 NPT
1.06
7318794018402
52 163-325
1"
G1 1/4
1 NPT
1.06
7318794018105
52 163-225
1 1/4"
G1 1/2
1 NPT
1.06
7318794018501
52 163-332
1 1/4"
G1 1/2
1 1/4 NPT
1.22
7318794018204
52 163-232
1 1/2"
G2
1 NPT
1.18
7318794033108
52 163-340
1 1/2"
G2
1 1/2 NPT
1.26
7318794032903
52 163-240
2"
G2 1/2
1 1/2 NPT
1.26
7318794033207
52 163-350
2"
G2 1/2
2 NPT
1.26
7318794033009
52 163-250

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


Other type of connections (ISO), see international version of TA-Modulator.

With male thread NPT

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

Brass

Valve size
D
D1
L [in] *
EAN
Article No
1/2"
G3/4
1/2 NPT
1.14
4024052928415
2400-02.350
3/4"
G1
3/4 NPT
1.28
4024052928514
2400-03.350
1"
G1 1/4
1 NPT
1.38
4024052928613
2400-04.350

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


Other type of connections (ISO), see international version of TA-Modulator.

Soldering connection

According to ASME/ANSI B16.18
Swivelling nut

Brass/gunmetal CC491K (EN 1982)

Valve size
D
Pipe Ø [in]
L [in] *
EAN
Article No
1/2"
G3/4
0.629
0.63
7318794022904
52 009-715
3/4"
G3/4
0.879
0.87
7318794023000
52 009-720
1"
G1 1/4
1.130
1.02
7318794023109
52 009-725
1 1/4"
G1 1/2
1.380
1.10
7318794023208
52 009-732
1 1/2"
G2
1.630
1.22
7318794033900
52 009-740
2"
G2 1/2
2.130
1.50
7318794034006
52 009-750

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


Other type of connections (ISO), see international version of TA-Modulator.

Accessories

Grip for setting wheel, optional

For better grip when presetting.
For TA-COMPACT-P/-DP and TA-Modulator (size 1/2"-1 1/4").

Color
EAN
Article No
Orange
7318794040502
52 164-950

Protection cap

For TA-COMPACT-P/-DP, TA-Modulator (1/2"-3/4"), TBV-C/-CM.

EAN
Article No
Red
7318793961105
52 143-100

Tamper proof cover

Set containing plastic cover and locking ring for valves with connection M30x1.5 to thermostatic head/actuator.
Prevents manipulation of setting.

Suitable for sizes 1/2" - 1 1/4".

EAN
Article No
7318794030206
52 164-100

Insulation

For heating/comfort cooling.
Material: EPP.
Fire class:
Size 1/2"-1 1/4": E (EN 13501-1), B2 (DIN 4102).
Size 1 1/2"-2": F (EN 13501-1), B3 (DIN 4102).

Valve size
L [in]
H1 [in]
H2 [in]
D [in]
EAN
Article No
1/2"
3.94
2.40
2.79
3.31
7318794027404
52 164-901
3/4"
4.65
2.64
3.11
3.54
7318794027503
52 164-902
1"
5.00
2.79
3.31
4.09
7318794027602
52 164-903
1 1/4"
6.06
3.35
3.90
4.88
7318794027701
52 164-904
1 1/2"
10.91
4.13
-
5.16
7318794030800
52 164-905
2"
10.91
4.13
-
5.16
7318794030909
52 164-906

Spindle extension for size 1/2" - 3/4"

Recommended together with the insulation to minimize the risk of condensation at the valve-actuator interface.
M30x1,5.

L [in]
EAN
Article No
Plastic, black
1.18
4024052165018
2002-30.700

Measuring point, extension 2.36 in.

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

For all sizes.

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

Venting extension

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

AMETAL®

Valve size
d
L [in]
EAN
Article No
1 1/2" - 2"
M10x1
2.76
7318794033702
52 164-301

Venting plug

Spare part.

AMETAL®

Valve size
EAN
Article No
1 1/2" - 2"
7318794033801
52 164-302

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