Identify from the photo
- Full 3A300 code or readable label
- 10 single-pilot or 20 double-pilot control
- 1/4 or 3/8 port
- NC or NO state for 10 control
- PT, G or NPT thread and installed base/interface
AirTAC 3A300 Three-Port Air-Pilot Valves
3A300 is a three-port, two-position externally air-piloted valve range. Confirm 10/20 control, 1/4 or 3/8 port, NC/NO state and thread before RFQ.
Request type
AirTAC originalModel matchingChina-source alternative
3A-300Air Pilot Valves
Ordering code matching
Match each code segment
Code format
3A 3 [10/20] [08/10] [NC/NO for 10] [PT/G/NPT]Published 3A300 code layout3A310-083A320-083A310-10-NC| ①Control | ②Port | ③Thread |
|---|---|---|
| 10 single pilot (NC/NO) or 20 double pilot. | 1/4 or 3/8 inch for the 300 range. | Blank PT; G G thread; T NPT thread. |
About 3A-300
3A300 is the largest published 3A range and uses its own 1/4 and 3/8 port, flow and dimensional data. It must not be substituted with a 3A100 or 3A200 range by circuit symbol alone.
Product matching reference
Compare the photo, drawing, and measurable details first
Drawing reference
- Confirm 3A300 rather than the smaller 3A100 or 3A200 range
- Match 10/20 control, 1/4 or 3/8 port, NC/NO state and PT/G/NPT thread
Key details for matching
Model patterns
- 3A300
- 3A310-08
- 3A320-08
- 3A310-10-NC
Reference details
- Product type: Three-port two-position externally air-piloted valve
- Published ports: 1/4, 3/8 inch
- Published effective area: 28.0 mm² (Cv 1.65) for 3A310/320-10
- Published pressure / proof / temperature: 0.15–0.8 MPa; 1.2 MPa; -20 to 70 °C
- Reference page: PDF page 3
Matching Questions
Why is 3A300 not selected only by its port size?
The complete 3A300 code also retains pilot control, NC/NO state where applicable, thread and installed interface. Match the full label or circuit...
3A-300
Include this series in a project RFQ
3A-300 Add other models, quantities, photos, drawings, or a BOM. One request can cover several product groups.