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KTM 512

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.

Product Information

Pressure independent balancing and control valve – DN 15-125

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.

Key features

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:

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

Dimensions:

DN 15-125

Pressure class:

PN 16
PN 25

Differential pressure (ΔpV):

Max. differential pressure:
1600 kPa = 16 bar (ΔHmax)
Min. differential pressure:
Low flow (LF): 24 kPa (ΔHmin)
Normal flow (NF): 40 kPa (ΔHmin)
High flow (HF): 80 kPa (ΔHmin)
(Valid for max. position, fully open. Other positions will require lower differential pressure, check with the software HySelect.)

Flow range:

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

DN 15/20 (LF): 120-800 l/h
DN 15/20 (NF): 150-1000 l/h
DN 15/20 (HF): 210 -1400 l/h
DN 25/32 (LF): 480 - 3200 l/h
DN 25/35 (NF): 570 - 3800 l/h
DN 25/35 (HF): 810 - 5400 l/h
DN 40/50 (LF): 1140 - 7600 l/h
DN 40/50 (NF): 1400 - 9500 l/h
DN 40/50 (HF): 1900 - 12600 l/h
DN 65 (LF): 2300-15400 l/h
DN 65 (NF): 3240-21600 l/h
DN 65 (HF): 4440 - 29600 l/h
DN 80 (LF): 2500 - 16700 l/h
DN 80 (NF): 3400 - 22700 l/h
DN 80 (HF): 4900 - 32500 l/h
DN 100 (LF): 4000 - 26600 l/h
DN 100 (NF): 6200 - 41200 l/h
DN 100 (HF): 7500 - 50600 l/h
DN 125 (LF): 5350 - 35600 l/h
DN 125 (NF): 8200 - 54900 l/h
DN 125 (HF): 10000 - 66800 l/h

qmax = l/h at each setting and fully open valve plug.

Temperature:

Max. working temperature:
- with measuring points: 120°C
- without measuring points: 150°C
Min. working temperature: -10°C

Media:

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

Max. lift of the control valve:

DN 15-50: 10 mm
DN 65-125: 20 mm

Leakage rate:

Tight sealing

Characteristics:

Indicative shaped EQM, best suited for modulating control.

Material:

Valve body: Ductile iron EN-GJS-400-15
Valve insert: Brass
Throttle plug: Stainless steel
Valve plug: Stainless steel
Valve seat: Stainless steel
Seat seal: EPDM
Spindle: Stainless steel
Δp insert: Stainless steel (plastic components for DN 15-50)
Δp seat: Ryton plastic
Springs: Stainless steel

Surface treatment:

Electrophoretic painting.

Marking:

IMI TA, DN, PN, Kvs, material and flow direction arrow.

Connection:

DN 15-50: Male threads according to ISO 228.
DN 65-125: Flanges according to EN-1092-2, type 21. Face to face length according to EN 558 series 1.

Actuators:

DN 15-50: TA-Slider 500
DN 65: TA-Slider 750*
DN 80 LF/NF: TA-Slider 750*
DN 80 HF: TA-Slider 1250*
DN 100 LF: TA-Slider 750*
DN 100 NF/HF: TA-Slider 1250*
DN 125: TA-Slider 1250*

*) Adapter 52 757-907 needed.

For more details on actuators, see separate technical leaflets.

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.

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.

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