AirTAC GR400-10 Pressure Regulator (GR40010C3K)
The AirTAC AirTAC GR400-10 Pressure Regulator (GR40010C3K) is a genuine G-series air pressure regulator. It holds a stable downstream pressure over the range 0.05 - 0.9 MPa (7 - 130 psi) with PT3/8" ports, and ships with a pressure gauge. A regulator does not filter the air — put a GF filter upstream, or use a GFR filter regulator, when water and particulate must also be removed.
- TypePressure regulator
- Port sizePT3/8"
- Regulating range0.05 - 0.9 MPa (7 - 130 psi)
- Pressure typeStandard type
- Pressure gaugeFitted
- Reflux valveFitted
- ThreadPT
- BracketFixing bracket included
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC GR400-10 Pressure Regulator (GR40010C3K)
The GR400-10C3K is an AirTAC G-series air pressure regulator: regulation only, with no filter bowl and no lubricator. This size 400 unit has a 3/8 in PT port as standard, a maximum working (inlet) pressure of 1.0 MPa (145 psi) and an adjustment range of 0.05-0.9 MPa (7-130 psi). The C3 code adds an external round pressure gauge reading in bar, and the K code means a reverse/check valve is fitted. A mounting bracket is included and the GR body is also panel-mountable. Operating temperature is -20 to 70 C, non-freezing; the medium is compressed air only.
This is a genuine AirTAC part. GR regulators come in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, in PT, G (BSPP) or NPT thread, with or without the K check valve, and with square or round gauges in MPa, psi or bar scales. Regulator flow is published as characteristic curves rather than a single rated figure, so ask us and we will confirm the datasheet and sizing for your application on request.
AirTAC GR400-10 Pressure Regulator (GR40010C3K) Technical Specifications
| Model | AirTAC GR400-10 Pressure Regulator (GR40010C3K) |
|---|---|
| Series | GR400 pressure regulator |
| Port size | PT3/8" (PT thread) |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard type |
| Bracket | Fixing bracket included |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Fitted — round, bar scale |
| Reflux valve | Fitted (reverse flow permitted) |
| Mounting | Panel mounting; optional fixing bracket |
Specifications follow the official AirTAC G-series air-preparation data. Note the GR temperature range is -20 to +70 °C, wider than the other G-series units. A regulator has no bowl and no filter element, so there is no filtering grade. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
Model Code: AirTAC GR400-10 Pressure Regulator (GR40010C3K)
| GR400 | G-series pressure regulator, 400 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Standard type — 0.05 - 0.9 MPa (7 - 130 psi). Blank is standard, L is the low-pressure type. |
| (blank) | Fixing bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
Field order is size, port, type, bracket, gauge, gauge shape, scale, thread, reflux — a blank position takes the default. Example: GR300-08LNK is a 300 body, PT1/4", low-pressure type, no gauge, with reflux valve.
Size Class
- GR200PT1/8" - PT1/4"
- GR300PT1/4" - PT1/2"
- GR400PT3/8" - PT1/2"
- GR600PT3/4" - PT1"
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom rather than from a single rated figure.
| This model | GR400 · PT3/8" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR300 |
| One size up | GR600 |
| Line order | Filter first, then regulator, then lubricator |
Where the AirTAC GR400-10 Pressure Regulator (GR40010C3K) Is Used
Pneumatic press cylinder
Regulate the working pressure of a pneumatic press or stamping cylinder, with the fitted check valve handling reverse flow in the line.
Actuated process valves
Supply quarter-turn pneumatic actuators on a process line with a stable, adjustable pressure set locally at each valve station.
Fixture clamping on weld cells
Hold a consistent clamp pressure on robotic welding fixtures so part seating does not drift with fluctuations in the plant air main.
Is the AirTAC GR400-10 Pressure Regulator (GR40010C3K) the Right Regulator?
Pick the size (200/300/400/600) and port (1/8 to 1 in) that match your piping and the flow curve of the circuit; the 400 body with 3/8 in PT ports is the mid-range GR step. This C3K build carries an external round gauge in bar and a built-in reverse/check valve - choose the non-K build if you do not need the valve. Thread is PT as the standard, with G (BSPP) and NPT available to order; a bracket is included and panel mounting is possible. Since flow is published as curves and not a single rating, send us your pressure and flow targets and we will confirm the correct size before you order.
Quick checklist
- ✓ Body size for your peak flow (PT3/8" here)
- ✓ Standard 0.9 MPa or low-pressure 0.4 MPa
- ✓ Gauge fitted, or order N without
- ✓ Gauge shape C round / F square
- ✓ Scale MPa (1), psi (2) or bar (3)
- ✓ Reflux valve needed, order K
Installation & Maintenance Notes
- check Install downstream of the filter, following the airflow arrow.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure while air is flowing, then lock the knob.
- check Adjust within 0.05 - 0.9 MPa (7 - 130 psi) only.
- check Operating range -20 to +70 °C.
- check Panel-mount or use the fixing bracket; do not hang it on tubing.
The reflux valve lets air flow back through the regulator, which is useful when downstream volume must vent quickly. A regulator does not remove water or particulate; that is the filter's job.
AirTAC GR400-10 Pressure Regulator (GR40010C3K) FAQ
AirTAC publishes regulator performance as flow-characteristic curves rather than a single rated figure, so no flow number is quoted here. Share your upstream pressure, set pressure and required flow, and we will confirm from the datasheet that size 400 at 3/8 in suits your application before you order.
K means a reverse/check valve is fitted in this GR400-10C3K. If your circuit does not need reverse-flow handling, the same regulator is available without the valve; bracket and thread options (PT standard, G/NPT to order) stay the same across the GR400 range.
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Genuine AirTAC parts produced by AirTAC factory.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for AirTAC GR400-10 Pressure Regulator (GR40010C3K)
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.