Pressure independent combined balancing and control valves with independent EQM characteristics
These innovative pressure independent balancing and control valves for heating and cooling systems combine the key hydronic functions of balancing and control in one valve. Adjustable max. flow and inherent independent EQM characteristics allow correct valve sizing and optimum system controllability. The measuring points enable accurate measurement of flow, differential pressure, temperature and available differential pressure.
Key features
Adjustable max. flow
Adjustable Kvs technology allows setting to design flow.
Independent, inherent EQM characteristic
Proper EQM valve characteristic and high authority for all settings.
Self-sealing measuring points
Simple and accurate measurement for balancing, trouble shooting and power measurement.
Technical description
Application:
Heating and cooling systems.
Functions:
Control (EQM)
Differential pressure control
Pre-setting (max. flow)
Measuring (ΔH, T, q)
Shut-off (for isolation during system maintenance)
Flushing (of the system)
Dimensions:
DN 32-50
DN 100-150
(DN 65-80: See TA-Modulator)
Pressure class:
DN 32-50: PN 16
DN 100-150: PN 16 and PN 25
Differential pressure (ΔpV):
Max. differential pressure (ΔpVmax):
800 kPa = 8 bar
Min. differential pressure (ΔpVmin):
DN 32-50: 15 kPa = 0,15 bar
DN 100-125: 30 kPa = 0,30 bar
DN 150: 40 kPa = 0,40 bar
DN 150 HF: 60 kPa = 0,60 bar
(Valid for position 10, fully open. Other positions 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.
Recommended flow range:
The flow (qmax) can be set within the range [m3/h]:
DN 32: 0,88 - 4,21
DN 40: 1,01 - 6,19
DN 50: 2,71 - 11,1
DN 100: 27,8 - 68,0
DN 125: 45,6 - 120
DN 150: 78,1 - 207
DN 150 HF: 98,7 - 261
qmax = m3/h at each setting and fully open valve plug.
Lift:
20 mm
Rangeability:
>100 (for all recommended settings)
Leakage rate:
Tight sealing
Characteristics:
Independent EQM.
Temperature:
Max. working temperature:
120°C
DN 100-150 with double secured measuring points: 150°C
Min. working temperature: -20°C
Media:
Water or neutral fluids, water-glycol mixtures (0-57%).
(For other media contact IMI Hydronic Engineering.)
Material:
DN 32-50:
Valve body: AMETAL®
Valve plug: AMETAL®
Seat seal: EPDM/Stainless steel
Spindle seal: EPDM O-ring
O-rings: EPDM
Valve insert: AMETAL®/PPS/PTFE
Δp insert: Stainless steel/PPS
Membrane: HNBR
Springs: Stainless steel
Spindle: Stainless steel
DN 100-150:
Valve body: Ductile iron EN-GJS-400
O-rings: EPDM
Valve plug: Stainless steel
Seat seals: EPDM/Stainless steel
Plug mechanisms: Stainless steel and brass
Membrane: EPDM
Δp spring: Stainless steel. DN 150 painted steel.
Screws and nuts: Stainless steel
AMETAL® is the dezincification resistant alloy of IMI Hydronic Engineering.
Surface treatment:
DN 32-50: Non treated
DN 100-150: Electrophoretic painting.
Marking:
DN 32-50: TAH, IMI, DN, PN, DR, serial No and flow direction arrow.
DN 100-150: TAH, IMI, DN, PN, Kvs, Tmin/max, serial No, valve body material and flow direction arrow, label.
CE-marking:
DN 100-125: CE
DN 150: CE 0062 *
*) Notified body.
Connection:
DN 32-50:
Female thread according to ISO 228. Thread length according to ISO 7-1.
Male thread according to ISO 228.
DN 100-150:
Flanges according to EN-1092-2, type 21. Face to face length according to EN 558 series 1.
Actuators:
TA-Slider 750
TA-Slider 1250
TA-MC100 FSE/FSR (fail-safe)
For more details on actuators, see separate technical leaflets.
The products, texts, photographs, graphics and diagrams in this document may be subject to alteration by IMI Hydronic Engineering without prior notice or reasons being given. For the most up to date information about our products and specifications, please visit www.imi-hydronic.com.