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.
