Airwell DFO 5 - 9 - 17, Инструкция по установке и эксплуатации

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4 - WATER CONNECTIONS
4.10 MANUAL BALANCING VALVE
Q = water flow rate (l/s)
Dp = water side pressure drops (bar)
Kvs = flow rate coefficient [m
3
/h]
The water side pressure drop can be
determined with the following formula:
The device enables the water flow through the unit to be
calibrated without measuring tables or devices.
In this way it is possible to balance the water flow in the circuit.
The special viewer enables instantaneous reading of the water
flow (in litres / minute). The calibration can be easily carried out
even by non-specialised operators, operating on the special
control screws. It includes adaptors for varying the diameter
between the balancing valve and the water fittings.
SIZE
5-9
Balancing valve diameter 3/4’’ 1"
Water fitting diameter 1/2’’ 1/2"
System side water fittings MALE MALE
Unit side water fittings MALE MALE
Max. operating pressure 10 bar 10 bar
Field flow control 0.05 ÷ 0.2 l/s 0.13 ÷ 0.5 l/s
Flow rate coefficient (Kvs) 1.85 5.00
17
FEATURES OF THE MANUAL BALANCING VALVE