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Control Components / Solenoid Valves
29 AirTAC series for original sourcing, model quotation, replacement matching, or China-source alternative review when accepted.






























Industrial pneumatic directional control valves require exact alignment of flow factor (Cv), response speed, port threading (BSPT/NPT), and electrical coil specifications. Compare key series below for direct factory replacement or machine retrofit.
| Series | Port Size | Flow Factor (Cv / L/min) | Pressure Range | Response / Duty | Typical Industrial Application |
|---|---|---|---|---|---|
| 4V100 Series (5/2, 5/3) | M5 x 0.8, 1/8" BSPT | Cv 0.67 ~ 0.89 (~250 L/min) | 0.15 ~ 0.80 MPa | < 0.05s / 100% ED (Continuous) | Miniature actuators, bore ≤ 32mm, electronic PCB assembly |
| 4V200 Series (5/2, 5/3) | 1/8", 1/4" BSPT / G | Cv 0.89 ~ 1.67 (~550 L/min) | 0.15 ~ 0.80 MPa | < 0.05s / Up to 5 Hz cycling | General automation, SC/SDA cylinders 32~63mm, packaging machines |
| 4V300 Series (5/2, 5/3) | 1/4", 3/8" BSPT / G | Cv 1.67 ~ 2.78 (~950 L/min) | 0.15 ~ 0.80 MPa | < 0.06s / High-flow continuous | Heavy-duty cylinders 63~100mm, conveying lines, stamping feeder |
| 4V400 Series (5/2, 5/3) | 3/8", 1/2" BSPT / G | Cv 2.78 ~ 4.45 (~1600 L/min) | 0.15 ~ 0.80 MPa | < 0.08s / High-volume exhaustion | Large bore cylinders 100~200mm, bulk material handling, presses |
| 3V100 / 3V200 (3/2-way) | M5, 1/8", 1/4" BSPT | Cv 0.55 ~ 1.25 (~400 L/min) | 0.15 ~ 0.80 MPa | < 0.04s / Spring-return NO/NC | Single-acting cylinders, vacuum pilot release, pneumatic clutches |
Calculate required flow factor Cv = (Piston Area × Stroke × Cycles/min × Pressure Ratio) / 60. Sizing a valve too small causes sluggish cylinder movement; sizing too large wastes energy and increases air consumption.
Supply air must be filtered to 40μm (5μm recommended for pilot stages). Modern NBR/HNBR spool seals do not require lubrication; if lubrication is started with ISO VG32 turbine oil, it must be continued continuously.
Standard coils support DC24V (±10%, ~3W/4.8W) and AC220V/110V (50/60Hz). Specify DIN 43650 connector with integrated LED indicator and varistor surge suppressor to protect PLC output cards.
Individual sub-base or multi-station centralized manifold blocks consolidate P (supply) and R/S (exhaust) lines into unified ports, reducing piping clutter and enabling centralized mufflers.
Functionally and pneumatically yes: identical 5/2 or 5/3 fluid power circuits, port sizes (1/8"-1/2"), and 0.15-0.8 MPa operating envelopes. However, manifold sub-base screw pitch and connector pins differ. Our engineering team provides direct interchange confirmation and CAD models.
Closed Center (4V230C) locks cylinder position when de-energized. Exhaust Center (4V230E) exhausts both cylinder chambers allowing free manual movement. Pressure Center (4V230P) maintains equalized pressure on both sides for balanced stopping.
Standard internally-piloted 4V series require minimum 0.15 MPa positive pilot pressure to shift the spool and cannot be operated under pure vacuum. For vacuum switching, use externally-piloted valves (7V/3A) or direct-acting 2V/2W series.
Build your pneumatic circuit with complementary components. Confirm dimensions and operating conditions before selecting a combination.

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Connect tubing to a valve or actuator. Match tube outside diameter, port thread and seal type.

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Run air lines between fittings and components. Confirm outside diameter, bend radius, pressure and temperature.

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Filter and regulate supply air. Confirm filtration, pressure range and flow requirements for the connected equipment.
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