Externally air-piloted 3/2 valves with single-pilot NC/NO or double-pilot control and 1/4 or...
Official reference
Based on manufacturer documentation
Model support
For model confirmation
Parts lists
Code, photo, or BOM
Availability / lead time
By model and quantity
Externally air-piloted 3/2 valves with single-pilot NC/NO or double-pilot control and 1/4 or 3/8 main ports. Send the model or label, quantity and destination for a quotation.
Know your model? Send it with the quantity for a quote. Not sure? Start with a photo, label or description. We help identify the model and clarify availability and lead time. Mixed parts lists are welcome too.
Choose a type; send a model or photo if unsure.
3A310
Single air control; specify NC or NO
3A320
Double air control; memory function, no NC/NO suffix
Send the model, quantity and destination. For multiple items, attach a parts list or BOM.
Match a 3A300 model code
1–16 stations; request the base alone or a valve assembly. The base inlet (100M/200M: 1/4; 300M: 3/8) is separate from the selected valve main port. Send the model, thread, occupied stations and required contents.
View base details and request a quote →3A300 ordering-code guide
Helpful for Model Matching:
| Valve function | 3 ports / 2 positions; external air pilot |
| Control | 10: single pilot NC/NO; 20: double pilot, memory function |
| Main ports | 08: 1/4; 10: 3/8 inlet/outlet; blank PT / G / T=NPT |
| Equivalent flow area / Cv | 28.0 mm² / 1.65 for 3A310-10 and 3A320-10 only; calculated from flow tests |
| Operating pressure | 0.15–0.8 MPa (21–114 psi) |
| Proof pressure | 1.2 MPa (175 psi) |
| Temperature | −20 to +70 °C |
| Air / lubrication | Air filtered through 40 μm element; lubrication not required. Once lubricated, continue using the same medium; ISO VG32 or equivalent recommended. |
| Maximum frequency | 5 cycles/s at no-load state |
| Body | Aluminum alloy |
Ordering code matching
Code format
3A310-[08/10]-[NC/NO]-[blank/G/T]Single pilot; state required3A320-[08/10]-[blank/G/T]Double pilot; no NC/NO3A310-08-NC3A310-10-NO-G3A320-10-T| ①Control | ②Port | ③Thread |
|---|---|---|
| 10 single pilot (NC/NO) or 20 double pilot. | 08=1/4 or 10=3/8 inch for the 300 range. | Blank PT; G G thread; T NPT thread. |
If the label is incomplete, send the readable parts together with a photo.
3A310-10-NO-G3A3Valve family / size
3/2 externally air-piloted valve, 300 range.
10 / 20Control
10 single air pilot; 20 double air pilot with memory function.
08 / 10Main ports
08: 1/4 inlet/outlet; 10: 3/8 inlet/outlet.
NC / NORest state
10 only: normally closed NC or normally open NO; 20 has no state suffix.
blank / G / TThread
Blank PT; G=G; T=NPT.
3A300 is an externally air-piloted 3/2 valve range with 1/4 and 3/8 main-port options. Single pilot uses NC or NO; double pilot has memory function. Match the full label and installed interface when sourcing a replacement.
The complete 3A300 code also retains pilot control, NC/NO state where applicable, thread and installed interface. Match the full label or circuit requirement before quotation.
The official accessory catalogue lists 3V300M for 3A300, with 1–16 stations and a 3/8 base inlet. Send valve models, occupied stations, base thread and required blank plates. Use the 3A assembly drawing for installed clearance.
Yes. Send the label or photos, circuit function, quantity and destination. Single-pilot codes need NC or NO; double-pilot codes use neither. We can help clarify the remaining details.
3A-300
3A-300 Add other models, quantities, photos, drawings, or a BOM. One request can cover several product groups.
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.
Send your parts list, connection sizes and operating conditions for a matching check and combined quotation.