KTM 512

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.

Technical SpecificationsKTM512_EN_MAIN.pdf

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Features and Benefits

Inline design

Inline flow allows high pressure drops without noise.

Adjustable flow

Ensures the design flow.

Adapters

For use with most available actuators.

Applications

Heating and cooling systems.

Functions

Control EQM: DN 15 low flow, DN 10-200 normal flow

Differential pressure control

Isolation (for use during system maintenance – see "Leakage rate")

Measuring (ΔH, t, q)

Pre-setting (max. flow)

Dimensions

DN 15-125

Pressure class [PN]

PN 16

PN 25

Differential pressure (ΔpV)

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

Flow range

Flow range: The flow (q_max) 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 25/32 (NF): 570 - 3800 l/h
DN 25/32 (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
q_max = 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%).

Characteristics

Indicative shaped EQM, best suited for modulating control

Leakage rate

Tight sealing

Actuators

*) Adapter 52 757-907 needed.

DN 100 LF: TA-Slider 750*

DN 100 NF/HF: TA-Slider 1600*

DN 125: TA-Slider 1600*

DN 15-50: TA-Slider 500

DN 65: TA-Slider 750*

DN 80 HF: TA-Slider 1600*

DN 80 LF/NF: TA-Slider 750*

Marking

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

Connection

DN 15-50: External 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.

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.

The table below assists you in finding the relevant product based on its variant. For more details, please download the datasheet above.

Art. No.