Valves
Changeover valve VA300
The 3-port valve RESOL VA300 is used for distribution of flow rates of bivalent heat sources or heating storages, e.g. in the solar and heat pump technology (temperature of the media: up to 120 °C, only for a short time up to 140 °C).
The valve RESOL VA300 is equipped with one input and two outputs. The influx is changed over to one of the two outputs in accordance with the position of the valve spindle. The positioning is effected by an electrothermal actuator (with manual emergency operation). The straight interconnection is normally closed whereas the connection opposite of the actuator is open. During the current flow through the actuator, the straight interconnection is opened and the connection opposite the actuator is closed. The state "normally closed" can be easily changed to "normally open". Because of the smooth adjustment there are no water hammers in the system and the flow rate remains constant. The 3-port valves RESOL VA300 are supplied with thread sockets made of brass.
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|---|---|---|---|---|
| DN 20 | DN 25 | DN 32 | DN 40 | |
| L | 64 | 84 | 115 | 115 |
| H | 36 | 46 | 106 | 106 |
| H1 | 44,5 | 50 | 64 | 64 |
| H2 | 114,5 | 120 | - | - |
| H3 | 93 | 98,5 | - | - |
| SW | 37 | 47 | 66 | 66 |
| H2= Height with thermostat head K H3= Height with solar thermal actuator EMO T |
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Actuator
Power supply: 220 ... 240 V~
Power consumption: max. 2,5 W
Ingress protection: IP 44 vertical
IP 42 horizontal
Ambient temperature: max. 50°C
Spring force: 120 N
Stroke: 4 mm
Valve
Housing: Corrosion resistant red brass
Maximum pressure: 10 bar
Sealings: EPDM
Connections: ¾", 1", 1¼" und 1½"
Temperature range: Temperature resistant up to +120 °C, for a short term up to +140 °C
Internal parts: Brass and stainless steel
Changeover valve VA300
VA 300-DN20 - R¾", with actuator
Article-no: 270 005 40 | Price bracket A
Changeover valve VA300
VA 300-DN25 - R1", with actuator
Article-no: 270 005 50 | Price bracket A
Changeover valve VA300
VA 300-DN32 - R1¼", with actuator
Article-no: 270 005 60 | Price bracket A
Changeover valve VA300
VA 300-DN40 - R1½", with actuator
Article-no: 270 005 70 | Price bracket A
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