Ouleikai (OLK) VFA Series pneumatic control reversing valves offer three air path options: two-way three-port, two-way five-port, and three-way five-port. The valve core switches by pneumatic pressure to change the direction of airflow. This pneumatic pressure is known as pilot pressure or control pressure, provided externally. The interface threads of the VFA air control valve body are burr-free, and the interior of the valve body is smooth. It uses a 40-micron filter screen for efficient impurity filtration, extending the life of the sealing ring.
The VFA pneumatic control valve is widely used in various industrial sectors such as petrochemicals, power generation, pharmaceuticals, etc., for controlling the direction and flow of gas. Additionally, it can also be employed in industrial automation systems for tasks like liquid pipeline control, gas pipeline control, and automated production line control.
SYMBOL：
| Ordering code | |||||
| VF3 | 130 | 4 | G | B | 02 |
| SERIES | COIL & POSITION | VOLTAGE | LINE TYPE | MANUAL | PORT SIZE |
| 130:5/2 way single solenoid valve | 3:110VAC | G:LINE TYPE | 02:PT1/4 | ||
| 230:5/2 way double solenoid valve | 4:220VAC | D:DIN | |||
| 330:5/2 way double solenoid valve closed center | 5:24VDC | DZ:DIN WITH LIGHT | |||
| 430:230:5/2 way double solenoid valve exhaust center | 6:12VDC | ||||
| 530:230:5/2 way double solenoid valve pressure center | |||||
OLK VFA Series Air Control Valve 3 Way 5 Way with CE General parameters
| working medium | Air (filtered through a filter over 40μm) |
| Action | external air control |
| lubricating | unnecessary |
| Working pressure range MPa(psi) | 0.15~0.9 |
OLK VFA Series Air Control Valve 3 Way 5 Way with CE different parameters
| model | Port diameter | number of positions | Effective cross-sectional area mm² (CV value) |
| VFA3130-02 | Inlet=Outlet=PT1/4 Exhaust=PT1/8 | 2 position 5 way | 18(1) |
| VFA3230-02 | Inlet=Outlet=PT1/4 Exhaust=PT1/8 | 2 position 5 way | 18(1) |
| VFA3330-02 | Inlet=Outlet=PT1/4 Exhaust=PT1/8 | Three position five way | 18(1) |
| VFA3430-02 | Inlet=Outlet=PT1/4 Exhaust=PT1/8 | Three position five way | 18(1) |
| VFA3530-02 | Inlet=Outlet=PT1/4 Exhaust=PT1/8 | Three position five way | 18(1) |
| VFA5120-03 | PT3/8 | 2 position 5 way | 45(2.5) |
| VFA5220-03 | PT3/8 | 2 position 5 way | 45(2.5) |
| VFA5320-03 | PT3/8 | Three position five way | 45(2.5) |
| VFA5420-03 | PT3/8 | Three position five way | 45(2.5) |
| VFA5520-03 | PT3/8 | Three position five way | 45(2.5) |
