matsakis.gr > Προϊόντα > 4. ΑΕΡΟΚΟΥΡΤΙΝΕΣ > 12. ΠΑΡΕΛΚΟΜΕΝΑ ΑΕΡΟΚΟΥΡΤΙΝΩΝ ΣΟΥΗΔΙΑΣ - Control and Accessories > 12. ΠΑΡΕΛΚΟΜΕΝΑ ΑΕΡΟΚΟΥΡΤΙΝΩΝ ΣΟΥΗΔΙΑΣ - Control and Accessories
 

12. ΠΑΡΕΛΚΟΜΕΝΑ ΑΕΡΟΚΟΥΡΤΙΝΩΝ ΣΟΥΗΔΙΑΣ - Control and Accessories

 
 
ΚΩΔ. 4.12.4 FR
FR/234
WATER CONTROLS
 
VR20/25, valve kit
For control of water flow to hot water heated air curtains.
The valve set consists of the following:
  • AV20/25, stop valve
  • JVF20/25, adjustment valve
  • TRV20/25, on/off 3-way valve
  • BPV10, by-pass valve
  • SD20, actuator on/off 230V
The stop valve AV20/25 consists of a ball valve which is either open or closed.  It is used to turn the water flow off and on.  The water flow can be fine-tuned manually with the adjustment valve and can also be completely turned off.  The water flow may be read off the valve.  The KV valve for JVF20 is 3,5 and for JVF25 it is 5,5.  If the 3-way valve TRV20/25 is closed, the flow through the by-pss valve is low to ensure presence of warm water in the heating cfoil.  This leads to instant heat supply when needed and some degree of frost protection.  The actuator SD20 works on/off.
 
The valve set is available with two different valve dimensions VR20 - DN20 (3/4") and VR25 - DN25 (1").  The by-pass valve dimension is DN10 (3/8").  To regulate VR20/25, a suitable thermostat has to be added.
 
TVV20/25, 2-way control valve
TVV20 has a pipe dimension of DN20 (3/4") and TVV25 of DN25 (1").  Pressure class PN16.  Maximum pressure 2 MPa (20 bar).
 
Maximum pressure drop TVV20:  100 kPa (1 bar)
Maximum pressure drop TVV25:    62 kPa (0,62 bar)
The kv-value is adjustable in 3 steps:
 
                  Pos 1         Pos 2       Pos 3
TVV20        kv 1,6         kv2,5        kv3,5
TVV25        kv 2,5         kv4,0        kv5,5
 
SD20, actuator on/off 230V
SD20 controls the heat supply.  Works on/off.  A 5 second closing of the valve prevents sudden pressure changes in the pipe system.  IP40.
TVV20/25, 2-way regulation valve and SD20, actuator provides a basic form of water regulation, without the possibility of adjusting or shutting the water flow off, e.g. when making maintenance.  A suitable thermostat is chosen to regulate TVV20/25 and SD20.
 
TE3434
Flexible hose, length 0,8 meters, for water heated units (2 is needed for a unit) with external thread 3/4" (DN20) at one end and coupling nut internal thread 3/4" (DN20), on the other.
 
 
 

 

 
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4. ΑΕΡΟΚΟΥΡΤΙΝΕΣ

 
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