Externally air-piloted 5/2 and 5/3 valves with 1/4 or 3/8 inlet/outlet and 1/4 exhaust ports....
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Externally air-piloted 5/2 and 5/3 valves with 1/4 or 3/8 inlet/outlet and 1/4 exhaust ports. Send the full circuit code 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.
4A310
5/2 single air pilot
4A320
5/2 double air pilot, memory function
4A330C
5/3 closed center
4A330E
5/3 exhaust center
4A330P
5/3 pressure center
Send the model, quantity and destination. For multiple items, attach a parts list or BOM.
Match a 4A300 model code
1–12 stations, 3/8 base inlet; request the base, blank plates or valve assembly. The 3V bases for 3A are separate.
View base details and request a quote →4A300 ordering-code fields
Helpful for Model Matching:
| Function | 5 ports; 5/2 (10/20) or 5/3 (30C/E/P); external air pilot |
| Main ports | 08: inlet/outlet/exhaust 1/4; 10: inlet/outlet 3/8, exhaust 1/4; PT/G/NPT |
| Equivalent flow area / Cv | 4A310-10 / 4A320-10: 28.0 mm² / 1.65; 4A330C-10: 21.3 mm² / 1.25. 08 and E/P values not stated. |
| Operating pressure | 0.15–0.8 MPa (21–114 psi) |
| Proof pressure | 1.2 MPa (175 psi) |
| Temperature | −20 to +70 °C |
| Maximum no-load frequency | 5/2: 4 cycles/s; 5/3: 3 cycles/s |
| Medium / lubrication | Air filtered through 40 μm element. Lubrication not required; once lubricated, continue the same medium; ISO VG32 or equivalent recommended. |
| Body | Aluminum alloy |
Ordering code matching
Code format
4A3[10/20/30C/30E/30P]-[08/10]-[blank/G/T]Full circuit, main port and thread4A310-084A320-10-G4A330C-10-T4A330E-084A330P-10| ①Circuit | ②Port / thread |
|---|---|
| 10 single-pilot 5/2; 20 double-pilot 5/2; 30C closed, 30E exhaust, 30P pressure center 5/3. | 08=1/4; 10=3/8 inlet/outlet with 1/4 exhaust. Blank PT, G, T=NPT. |
If the label is incomplete, send the readable parts together with a photo.
4A330E-10-G4A3Valve family / size
300 range, externally air-piloted 5/2 or 5/3.
10 / 20 / 30C / 30E / 30PControl / circuit
10 single pilot; 20 double pilot; 30C closed, 30E exhaust, 30P pressure center.
08 / 10Main port
08: 1/4 inlet/outlet/exhaust. 10: 3/8 inlet/outlet, 1/4 exhaust. Pilot ports 1/8.
blank / G / TThread
Blank PT, G or T=NPT for both port forms.
4A300 includes single-pilot 4A310 and double-pilot 4A320 5/2 valves, plus double-pilot 4A330C/E/P 5/3 valves. Main inlet/outlet ports are 1/4 or 3/8; exhaust ports remain 1/4. Retain the complete circuit code and installed interface for replacement inquiries.
No. The 10 model has 3/8 inlet/outlet and 1/4 exhaust. Pilot connections are also shown separately as 1/8. Match tubing and silencers to the actual port, not only the model port code.
28.0 mm² / Cv 1.65 is listed for 4A310-10 and 4A320-10; 21.3 mm² / Cv 1.25 specifically for 4A330C-10. The table does not state corresponding 08 or E/P values. Send the operating requirement for confirmation.
Yes. Send the label or photos, circuit function, quantity and destination. Official P124 lists 300M for 4A300 with 1–12 stations and a 3/8 base inlet. Send occupied stations, thread and blank-plate needs for a base or valve-assembly quotation.
4A-300
4A-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.