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DA 516

This compact differential pressure controller for heating and cooling systems is particularly effective in situations requiring high temperatures and/or pressure drop. DA 516 can be used both on the primary and secondary side in district heating and comfort cooling systems. Rust protection is assured thanks to the electrophoretic painted ductile iron body.

Product Information

Differential pressure controller with adjustable set-point – DN 15-50

This compact differential pressure controller for heating and cooling systems is particularly effective in situations requiring high temperatures and/or pressure drop. DA 516 can be used both on the primary and secondary side in district heating and comfort cooling systems. Rust protection is assured thanks to the electrophoretic painted ductile iron body.

Key features

Inline design

Inline flow allows high pressure drops without noise.

Adjustable set-point

Delivers desired differential pressure ensuring accurate balancing.

Measuring point

Simplifies the balancing procedure, increases its accuracy and enables troubleshooting.

Technical description

Application:

Heating and cooling systems.
Installation in the return pipe.

Functions:

Differential pressure control over the load.

Dimensions:

DN 15-50

Pressure class:

PN 25

Max. differential pressure (ΔpV):

1600 kPa = 16 bar

Setting range:

Δp over the load is adjustable within:
5-30 kPa, 10-60 kPa, 10-100 kPa or 60-150 kPa.
Delivery setting:
Maximum value (30, 60, 100 resp. 150 kPa).

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%).

Material:

Valve body: Ductile iron EN-GJS-400
Diaphragms and gaskets: EPDM
Adjustment ring: Ryton PPS

Surface treatment:

Electrophoretic painting.

Marking:

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

Connection:

Male thread according to ISO 228.

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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