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
Max differential pressure
400 kPa
Max cloe off pressure
10 bar
Material
DZR brass
Seals EPDM
Flow. l/h
Stroke  5mm
DN15 65-370 l/h
DN20 220-1330 l/h
DN25 600-3609 l/h
DN32 550-4001 l/h

Stroke 15 mm

DN40 1370-9500 l/h
DN50 1400-11500 l/h

 Stroke 2,5mm

DN15 low 30-182 l/h
DN15 high 97-544 l/h
DN20 97-544 l/h

Pressure class
PN25
Actuator
Force 100 N DN15-32
M30 connection DN15-32

0-10 V or 3 point control

Dimensions

Size A B Weight/kg
DN15 15 75 57 0,52
DN20 20 79 57 0,54
DN25 25 100 63 1,14
DN32 32 104 68 1,27

 

Preset

The pressure independent control valve TOV is set on top of the valve . The valve is marked with “LOW” or “HIGH” which is the stroke length. “LOW” is 2.5 mm and “HIGH” is 5 mm.

Media

 

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 58 57 9001278 EAC-30 Acturator 0-10 V, DN15-32 0-10 V
4 907 042 9001260 TOV-ST Actuator 0-10 V, DN40-50 0-10 V