FDF Nomal Closed Solenoid Valve
Coils: Compact design, low power consumption, reliable operation.
Good performance of open, big for the max. working pressure difference.
Service life ≥100,000 times.
Applicable for all common HFC/HFO/HC refrigerants such as: R290, R1234yf, R1234ze(E), R321), R447A, R452B, R454B, R454C, R600a • Medium temperature TS min./max.: -30°C / 120°C
Ambient temperature min./max.: -30°C / +50°C
Relative humidity: 0 to 95% RH
Product Series |
Operation Way |
Operation Type |
Port |
Kv |
Internal Leak |
Operation Pressure Difference |
OD of connection tube |
(mm) |
(m³/h) |
( △ p=2.1MPa) (ml/min) |
Min |
Max |
(inch) |
FDF 2A |
Open when be in energized |
Direct |
φ1.9 |
0.08 |
≤300 |
3.4 |
0 |
1/4 |
FDF 2.5A |
Open when be in energized |
Servo operated |
φ2.5 |
0.2 |
≤300 |
3.4 |
0.01 |
1/4 |
FDF 3A |
Open when be in energized |
Servo operated |
φ3.0 |
0.26 |
≤500 |
3.4 |
0.01 |
1/4 |
FDF 4A |
Open when be in energized |
Servo operated |
φ4.0 |
0.3 |
≤500 |
3.4 |
0.01 |
1/4 |
FDF 6A |
Open when be in energized |
Servo operated |
φ5.8 |
0.56 |
≤500 |
3.4 |
0.01 |
5/16 |