Pressure independent balancing and control valve – For modulating control
High-performing and compact, these pressure-independent temperature control valves for variable flow heating and cooling systems, are especially suitable for fan-coil applications. 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.
Technical description
Application:
Heating and cooling systems with variable flow.
Functions:
Temperature control, differential pressure control over the built-in control valve and flow control.
Dimensions:
DN 15-20
Pressure class:
PN 25
Max. differential pressure (ΔpV):
800 kPa = 8 bar
Pressure drop across control part of the valve (Fc):
LF/NF: 20 kPa
HF: 40 kPa
Temperature:
Max. working temperature: 120°C
Min. working temperature: -10°C
Setting range:
Maximum flow is adjustable up to 800 l/h (NF), 210 l/h (LF) and 1 150 l/h (HF).
Delivery setting: Position 10 (fully open).
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, material and flow direction arrow.
Identification ring on measuring point:
White = Low flow (LF)
Black = Normal flow (NF)
Red = High flow (HF)
Max. lift of the control valve:
4 mm