AirTAC GR400-10 Pressure Regulator (GR40010N)
The AirTAC AirTAC GR400-10 Pressure Regulator (GR40010N) 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, ordered without a 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 gaugeNot fitted
- Reflux valveNot fitted
- ThreadPT
- BracketFixing bracket included
About the AirTAC GR400-10 Pressure Regulator (GR40010N)
The AirTAC GR400-10N is a genuine AirTAC G-series air pressure regulator: regulation only, with no filter element and no lubricator in the body. This 400-size unit carries PT3/8 ports and is the standard-pressure type with a pressure adjustment range of 0.05-0.9 MPa (7-130 psi). The N suffix means no gauge is fitted, so outlet pressure is set against the adjustment knob alone unless a gauge is ordered separately. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -20 to 70 C (non-freezing).
This is a genuine AirTAC part within the GR family, which spans 200, 300, 400 and 600 sizes from PT1/8 up to PT1 ports. Options across the range include an embedded square gauge or an optional external round gauge, a low-pressure type limited to 0.4 MPa, a reverse/check valve, panel mounting and a no-bracket variant. Pressure loss on the GR is low. AirTAC publishes flow as curves rather than a single rated figure, so ask us and we will confirm the flow and datasheet figures for your application on request.
AirTAC GR400-10 Pressure Regulator (GR40010N) Technical Specifications
| Model | AirTAC GR400-10 Pressure Regulator (GR40010N) |
|---|---|
| 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 | Not fitted |
| Reflux valve | Not fitted |
| 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 (GR40010N)
| 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. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
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 (GR40010N) Is Used
Pneumatic clamping on a machining fixture
Set a steady supply pressure to the clamp cylinders on a CNC fixture so workholding force stays consistent from the first cycle of a shift to the last, independent of compressor swings upstream.
Packaging machine actuator supply
Feed the seal and forming cylinders of a carton or bag packaging line at a controlled pressure so jaw force and cycle behavior stay repeatable across the production run.
Robot gripper air preparation
Regulate the air feeding pick-and-place grippers on an assembly cell so part-handling force is set once at the panel and holds steady as the robot repeats its program.
Is the AirTAC GR400-10 Pressure Regulator (GR40010N) the Right Regulator?
Step up or down in size (200/300/400/600) to match the port and flow demand of your circuit; this 400 size sits at PT3/8. If you need to see outlet pressure at the unit, order the version with the embedded square gauge or an external round gauge in MPa, psi or bar scale rather than this no-gauge N variant. The J suffix removes the bracket; as coded here, a bracket is included, and GR is also panel-mountable. PT thread is the standard; G (BSPP) and NPT are catalogue options to specify when ordering. Because AirTAC publishes regulator flow as curves and not as a single rating, send us your flow requirement and we will confirm sizing against the datasheet 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.
Without a reflux valve, air cannot flow back through the regulator — order the K option if reverse flow is required. A regulator does not remove water or particulate; that is the filter's job.
AirTAC GR400-10 Pressure Regulator (GR40010N) FAQ
AirTAC does not publish a single rated flow number for the GR series; flow is given as characteristic curves against pressure and port size. We will read the relevant curve for the GR400-10N with you and confirm the figures against your application before you order - just ask.
No. N only means no pressure gauge is fitted to this unit; the regulation function, PT3/8 porting, 0.05-0.9 MPa adjustment range and included bracket are unchanged. If you want a pressure reading at the unit, choose the variant with the embedded square gauge or an external round gauge (MPa, psi or bar scale).
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