VA20 2-port valve
The 2-port valve RESOL VA20 is used for
switching flow rates in solar, heating and air
conditioning systems.
The VA20 is a 2-port-valve with an electrothermal
actuator. The actuating time of approx.
3 minutes enables a flow rate regulation
without water hammers. The VA20 comes
with brass connection fittings.
VA20-NO/DN 15 R½", with actuator normally open
Variants:
VA20 2-port valve
VA20-NO/DN 20 R¾", with actuator normally open
VA20-NO/DN 20 R¾", with actuator normally open
VA20 2-port valve
VA20 -NO/DN 32 R1¼", with actuator normally open
VA20 -NO/DN 32 R1¼", with actuator normally open
VA20 2-port valve
VA20-DN32 - R1¼", with actuator
VA20-DN32 - R1¼", with actuator
VA20 2-port valve
VA20-NC/DN 15 R½", with actuator normally closed
VA20-NC/DN 15 R½", with actuator normally closed
VA20 2-port valve
VA20-NC/DN 20 R¾", with actuator normally closed
VA20-NC/DN 20 R¾", with actuator normally closed
VA20 2-port valve
VA20-NC/DN 25 R1", with actuator normally closed
VA20-NC/DN 25 R1", with actuator normally closed
VA20 2-port valve
VA20-NC/DN 32 R1¼", with actuator normally closed
VA20-NC/DN 32 R1¼", with actuator normally closed
Dimensions VA20 (mm)
| DN 15 | DN 20 (¾") | DN 25 (1") | DN 32 (1¼") | |
|---|---|---|---|---|
| L | 95 | 106 | 118 | 135 |
| H | 21,5 | 21,5 | 23 | 23 |
| Rp | 1/2 | 3/4 | 1 | 1 1/4 |
| SW | 30 | 37 | 47 | 52 |
VA20 2-port valve
Maximum temperature flow/return:
Maximum pressure: 10 bar
Housing: corrosion resistant red brass
Internal parts: brass and stainless steel
Sealings: EPDM
Connections: 1/2", 3/4", 1" and 11/4"
Valve:
Max. operating pressure:
Maximum temperature:
Fittings:
Temperature range: temperature resistant up to +120 °C, for a short term up to +140 °C
VA20/VA300 Actuator
Power supply: 230 V~, 50 – 60 Hz
Power consumption: 1 W
Max. switching voltage: max. 550 mA
Ingress protection: IP 54
Pollution degree: 2
Maximum operation temperature: 0 – 60 °C
Spring force: 100 N
Stroke: 4 mm
Actuation time: ca. 3.5 min
Protection class: II
Electrical connection: 2 x 0.75 mm²; 100 cm
Initial position: NC: normally closed (VA300:flow direction from I to III)
NO: normally open (VA300:flow direction from I to II)
NO: normally open (VA300:flow direction from I to II)