Area of use

The pressure independent control valve TOV is used in secondary heating and cooling systems. Appropriate applications are fan air heaters, chilled beams, injection units and as a circuit valve in 1 pipe systems. TOV can be controlled with electric actuators as well as in some applications with a thermostatic head.

Description

The TOV control valve has three functions; Preset, differential pressure control and control. The functions are combined, which allows the TOV independent of the available maximum pressure. Together with a modulating actuator, good controllability is guaranteed throughout the stroke. The TOV is equipped with testpoints for flow control and the possibility of pump optimization.

TOV’s compact  and unique design provide a space-saving valve which requires low differential pressure for full modulating control. The TOV is equipped with blue protective hood for shutdown and protection of spindle and presetting.

Technical data

Max temperature
120°C
Min temperature
0°C
Max differential pressure
400 kPa
Material
DN 15-32  DZR brass
DN 40-50  Cast iron
Pressure class
PN25
Connection
DN 15-30  M30x1,5 adapted for MMA actuator Move
DN 40-50  Incl actuator

Leakage max. 0,01% of maximum set flow

 

Order designations

RSK nbr. Art.nbr Name Description
490 69 70 9001153 TOV DN15 5 mm DN15 65-370 l/h
490 69 69 9001154 TOV DN20 5 mm DN20 220-1330 l/h
490 70 14 9001253 TOV DN15 lf 2,5 mm DN15 low flow 30-182 l/h
490 70 15 9001254 TOV DN 15 hf 2,5 mm DN15 high flow 97-544 l/h
490 70 16 9001255 TOV DN20 2,5 mm DN20 97-544 l/h
490 70 17 9001256 TOV DN25 5,5 mm DN25 600-3609 l/h
490 70 18 9001257 TOV DN32 5,5 mm DN32 550-4001 l/h
490 70 33 90011258 TOV DN 40 incl act 0-10 V 1370-9500 l/h
491 70 34 90011259 TOV DN 50 incl act 0-10 V 1400-11500 l/h
480 86 66 4038901 Move 0-10V Acturator incl. adapter M28x1,5 and M30x1,5 0-10 V
490 70 42 9001260 TOV-ST Actuator 0-10 V, DN40-50 0-10 V
48-5525 Actuator 24V 2,5 mm stroke lenght
48-5526 Actuator 230V 2,5 mm stroke lenght
48-5527 Actuator 24V 5,0-5,5 mm stroke lenght
48-5528 Actuator 230V 5,0-5,5 mm stroke lenght