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DAB 50 – ANSI flanges

This proportional relief valve for heating and cooling systems maintains a minimum flow through the main pipe, minimising the response times of the system's control loops. Its ability to open at times of increasing differential pressure ensures the pumps are protected. Rust protection is assured thanks to the electrophoretically painted ductile iron body.

Informații produs

Proportional relief valve – DN 32-200

This proportional relief valve for heating and cooling systems maintains a minimum flow through the main pipe, minimising the response times of the system's control loops. Its ability to open at times of increasing differential pressure ensures the pumps are protected. Rust protection is assured thanks to the electrophoretically painted ductile iron body.

Key features

Special internal geometry

Allows big pressure drop without noise.

Adjustable set-point

Ensure the desired differential pressure.

Technical description

Application:

Heating and cooling systems.

Function:

Maintaining minimum flow through the main pipe to minimize response times of control loops in the system.
Opens at increasing Δp.

Dimensions:

DN 32-200

Pressure class:

Class 150

Max. differential pressure (ΔpV):

1600 kPa = 16 bar

Setting range:

Differential pressure adjustable 10 - 60 kPa, 50 - 150 kPa and 130 - 250 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
Actuator body: Ductile iron EN-GJS-400
Diaphragm: EPDM
Valve seat: Stainless steel
Valve plug: Stainless steel with EPDM insert

Surface treatment:

Electrophoretic painting.

Marking:

TA, DN, PN and flow direction arrow.

Flanges:

According to ASME/ANSI B16.42 Class 150.

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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