Our website uses cookies to better meet your requirements. Proper configuration of browser options allows you to block or remove cookies but can also cause the site to not function properly or even at all. By continuing to use the site, with no change to your browser settings, you agree to the use of cookies.
Learn about our Privacy Policy for cookies and other similar technologies.

DKH 512

The DKH 512 is a flow and differential pressure controller with a wide range of applications. Perfect for use in district heating substations, central heating and air-conditioning systems. Compact, and featuring an electrophoretically painted ductile iron body for optimum rust protection, the DKH 512 also features two inline valves that keep noise to a minimum. A manual shut-off function ensures easy maintenance.

Product Information

Flow and differential pressure controller

The DKH 512 is a flow and differential pressure controller with a wide range of applications. Perfect for use in district heating substations, central heating and air-conditioning systems. Compact, and featuring an electrophoretically painted ductile iron body for optimum rust protection, the DKH 512 also features two inline valves that keep noise to a minimum. A manual shut-off function ensures easy maintenance.

Technical description

Application:

District heating substations, primary side, as well as in central heating and air-conditioning.
Heating and cooling systems with variable flow.

Function:

Differential pressure control over the load and flow control.
Closes at increasing flow or Δp.

Dimensions:

DN 15-80

Pressure class:

PN 25

Differential pressure (ΔpV):

Max. differential pressure: 1600 kPa = 16 bar (ΔHmax)
Min. differential pressure:
Low flow (LF): 12 kPa (ΔHmin)
Normal flow (NF): 20 kPa (ΔHmin)
High flow (HF): 40 kPa (ΔHmin)
(Valid for max. position, fully open. Other positions will require lower differential pressure, check with the software TA-Select.)

Setting range:

Differential pressure fixed at 15, 40, 60 or 100 kPa.

Temperature:

Max. working temperature: 150°C
Min. working temperature: -10°C

Media:

Water and neutral fluids, water-glycol mixtures.

Material:

Valve body: Ductile iron EN-GJS-400
Diaphragms and gaskets: EPDM

Surface treatment:

Electrophoretic painting.

Marking:

TA, DN, PN, Kvs, Δp, Material and flow direction arrow.

Threads:

DN 15-50: According to ISO 228.

Flanges:

DN 15-50 (optional): According to EN-1092-2:1997, type 16.
DN 65-80: According to EN-1092-2:1997, type 21.

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.

Product Articles

Animations & Films

Use our interactive animations to simulate the effects of our innovative product as it would perform in your HVAC system. See our product films and learn more about how our products can help you. Click the play button to get started!

Text for Tenders