Kailing 4V series directional valves cover 100, 200, 300 and 400 size families for pneumatic circuit control. The same family includes 4V solenoid valves, 4A pneumatic control valves, 3V two-position three-way solenoid valves and 3A pneumatic control valves.
4V - 2 - 10 - 08 - B - W - AC220V - G - 4V: two-position or three-position five-way solenoid valve
- 4A: two-position or three-position five-way pneumatic control valve
- 3V: two-position three-way solenoid valve
- 3A: two-position three-way pneumatic control valve
- 1: 100 series
- 2: 200 series
- 3: 300 series
- 4: 400 series
- 10: single solenoid two-position
- 20: double solenoid two-position
- 30C: double solenoid three-position closed center
- 30E: double solenoid three-position exhaust center
- 30P: double solenoid three-position pressure center
- M5: M5 x 0.8
- 06: 1/8 in
- 08: 1/4 in
- 10: 3/8 in
- 15: 1/2 in
- Blank: pipe type
- B: plate type
- C/E/P: three-position center variants
- NC: two-position three-way normally closed
- NO: two-position three-way normally open
- Blank: standard terminal type
- LD: LED terminal type
- LD1: white LED terminal type
- W: lead-wire type
- DC12V
- DC24V
- AC24V 50Hz/60Hz
- AC110V 50Hz/60Hz
- AC220V 50Hz/60Hz
- AC380V 50Hz/60Hz
- G thread
- ZG thread
- NPT thread
Choose by circuit size and port
Use 100 series for compact pneumatic circuits, 200 and 300 series for common equipment valve stations, and 400 series when 1/2 in port capacity is required.
Solenoid and air-pilot variants
The same catalog family covers electric solenoid-operated 4V/3V variants and pneumatic control 4A/3A variants. Confirm control method before quoting.
RFQ confirmation points
Confirm series size, valve function, number of positions, port thread, voltage, wiring type, manifold or pipe mounting, quantity and any IP or connector requirement.
| Parameter | Value |
|---|---|
| Working medium | Air filtered through 40 microns |
| Action | Internal pilot |
| Working pressure | 0.15-0.8MPa |
| Maximum pressure | 1.2MPa |
| Working temperature | 5C to 50C |
| Voltage range | +/-10% |
| Insulation and protection | F class, IP65 |
| Wiring form | Terminal or lead-wire type |
| Maximum operating frequency | 5 cycles per second |
| Minimum excitation time | 0.05s |
4V / 4A series quick selection
| Series | Representative models | Port | Effective area | Power | Source page |
|---|---|---|---|---|---|
| 100 | 4V110, 4V120, 4V130; 4A110, 4A120 | M5 or 1/8 in | 10mm2(CV=0.56), 7mm2(CV=0.40), 12mm2(CV=0.67) | AC 2.5VA / DC 2.5W | 126 |
| 200 | 4V210, 4V220, 4V230; 4A210, 4A220, 4A230 | 1/8 in or 1/4 in | 14mm2(CV=0.78), 12mm2(CV=0.67), 16mm2(CV=0.89) | AC 4.5VA / DC 3W | 130 |
| 300 | 4V310, 4V320, 4V330; 4A310, 4A320, 4A330 | 1/4 in or 3/8 in | 25mm2(CV=1.40), 18mm2(CV=1.00), 30mm2(CV=1.68) | AC 4.5VA / DC 3W | 135 |
| 400 | 4V410, 4V420, 4V430; 4A410, 4A420, 4A430 | 1/2 in | 50mm2(CV=2.79), 30mm2(CV=1.68) | AC 4.5VA / DC 3W | 139 |
Frequently Asked Questions
- FAQ What is the difference between 4V and 4A?
4V is the solenoid-operated directional valve series, while 4A is the pneumatic control valve series in the same directional-valve family. - FAQ How should buyers choose 4V100, 4V200, 4V300 or 4V400?
Start with port size and required flow. The catalog pages list larger effective area and port size as the series moves from 100 to 400.
Need a quotation?
Send the model, medium, pressure, port size, body material and quantity for review.