DAF 516
Differential pressure controller with adjustable set-point – for installation in the supply pipe
This compact differential pressure controller for heating and cooling systems is particularly effective in situations requiring high temperatures and/or pressure drop. DAF 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 branding
Features and Benefits
Inline design
Inline flow allows high pressure drops without noise.
Adjustable set-point
Delivers desired differential pressure ensuring accurate balancing.
Applications
Heating and cooling systems.
Installation in supply pipe.
Functions
Differential pressure control
Pre-setting Δp over the load (ΔpL)
Pressure class [PN]
DN 15-50: PN 25
DN 65-125: PN 16, PN 25
Differential pressure (ΔpV)
Max. differential pressure (ΔpV): 1600 kPa = 16 bar
Setting range
Delivery setting: Maximum value (30, 60, 100 resp. 150 kPa).
DN 65-125: Midway min./max. value (~18, ~35, ~55 resp. ~105 kPa).
Δp over the load is adjustable within: 5-30 kPa, 10-60 kPa, 10-100 kPa or 60-150 kPa.
Temperature
Max. working temperature: 150°C
Min. working temperature: -10°C
Media
Water or neutral fluids, water-glycol mixtures (0-57%).
Marking
IMI TA, Size, PN, Material, Kvs/Cvs, Δp 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
Membranes and gaskets: EPDM
Adjustment ring: DN 15-50 Ryton PPS, DN 65-125 R St 37-2 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.
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