TA-Modulator – NPT threads/ANSI flanges

Application:

Heating (not steam) and cooling systems.

Functions:

Control EQM: 1/2"-6" normal flow
Control LIN: 2 1/2"-6" high flow
Pre-setting (max. flow)
Differential pressure control
Measuring (ΔH, t, q)
Isolation (for use during system maintenance – see "Leakage rate")

Dimensions:

1/2" – 6"

Pressure class:

1/2" - 2": PN 16 (230 psi)
2 1/2" - 6": Class 150

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 - 6": 116 psi
Min. differential pressure (ΔpVmin):
1/2" - 3/4": 2.2 psi
1" - 1 1/4": 3.3 psi
1 1/2" - 6": 4.4 psi
2 1/2" - 3" HF: 6.5 psi
4" - 5" HF: 8.0 psi
6" HF: 8.7 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.

HF = High flow

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 - 15.8 gpm
1 1/2": 4.40 - 28.6 gpm
2": 9.46 - 49.3 gpm
2 1/2": 18.3 - 106 gpm
2 1/2" HF: 32.8 - 161 gpm
3": 25.8 - 164 gpm
3" HF: 41.9 - 216 gpm
4": 51.5 - 228 gpm
4" HF: 79.3 - 334 gpm
5": 66 - 340 gpm
5" HF: 103 - 559 gpm
6": 115 - 555 gpm
6" HF: 171 - 837 gpm

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

HF = High flow

Temperature:

1/2" - 1 1/4":
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
2 1/2" - 6":
Max. working temperature: 248°F
Min. working temperature: 14°F

Media:

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

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" - 5": 0.787 in.
6": 1.181 in.

Rangeability:

1/2" - 1 1/4": >75
1 1/2" - 3": >125
4" - 6": >150
4" - 6" HF: >125

Leakage rate:

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

Characteristics:

Independent shaped EQM.
2 1/2" - 6" HF: Linear.

Material:

Size 1/2" - 1 1/4":
Valve body: AMETAL®
Valve insert: AMETAL® and PPS
Valve plug: Brass CW724R (CuZn21Si3P)
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" - 6":
Valve body: Ductile iron EN-GJS-400-15
Valve insert: Ductile iron EN-GJS-400-15 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-400-15, 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 1/2" - 2": Non treated
Size 2 1/2" - 6": 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, country of origin and flow direction arrow. Orange setting wheel.
2 1/2" - 6": IMI TA, DN, inch size, material and flow direction arrow. Label with technical specification, country 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" - 6": 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" - 6": 2xM8, push/pull

Actuators:

1/2" - 3/4":
TA-Slider 160, EMO TM, EMO 3, TA-ACTM (fail-safe).
1"- 1 1/4":
TA-Slider 160, TA-MC50-C*.
1 1/2" - 2":
TA-Slider 500, TA-Slider 750*.
2 1/2" - 5":
TA-Slider 750.
4" - 5" HF:
TA-Slider 750 ΔpV ≤ 58 psi, TA-Slider 1250 ΔpV ≤ 116 psi.
6"/6" HF:
TA-MC160**, TA-MC253 SE* (fail-safe).

TA-Slider 160, 500, 750 and 1250 also available with fail-safe function.

*) Adapter to be ordered separately, see "Adapters for actuators".
**) Adapter delivered with the valve.

For more details on actuators, see separate technical leaflets.