The AirTAC GR40010JF1T AirTAC Air Pressure Regulator NPT3/8 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.
The GR40010JF1T is an AirTAC GR400 series air pressure regulator for compressed air. It does one job only: holding a stable downstream pressure set anywhere in its 0.05-0.9 MPa (7-130 psi) adjustment range, with a maximum inlet pressure of 1.0 MPa (145 psi). This configuration is the 400 size with a 3/8 in NPT port, the standard regulator type, a square pressure gauge fitted (MPa scale, embedded as standard with an external round gauge available as an option), no mounting bracket, and no reverse/check valve. As a pure regulator it contains no filter and no bowl, so it should sit downstream of filtration in the air preparation chain. It is also panel-mountable.
This is a genuine AirTAC part. The GR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, in PT (standard), G and NPT threads, with gauge and scale options and a low-pressure type available. Because flow is published as curves rather than a single rated figure, we confirm the datasheet and flow figures for your application on request.
| Model | GR40010JF1T AirTAC Air Pressure Regulator NPT3/8 |
|---|---|
| Series | GR400 pressure regulator |
| Port size | PT3/8" (NPT thread) |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard type |
| Bracket | Supplied without bracket |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Fitted — square, MPa scale |
| 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.
| 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| T | NPT 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.
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 |
Set and hold the working pressure feeding a bench-mounted pneumatic press or clamping fixture, so each stroke operates at the same setpoint regardless of upstream supply swings.
Regulate the air to carton-sealing and case-erector cylinders on a packaging line, keeping actuation force consistent as the header pressure varies through the shift.
Drop main header pressure to a lower, stable branch pressure for a machine section - grippers, air bearings or sensitive actuators - that needs its own setpoint independent of the rest of the system.
Start with the port step: the 400 size carries a 3/8 in port, and larger sizes give larger ports and more flow - match the size to the air demand of the circuit rather than upsizing blindly. Choose the gauge scale you want to read (MPa, psi or bar) and whether you prefer the embedded square gauge or the optional external round gauge. Specify the thread for your piping: PT is the standard, with G (BSPP) and NPT as orderable options - this model is NPT. Decide on the bracket: this code has none, and GR is also panel-mountable. If your set pressure never exceeds 0.4 MPa, ask about the low-pressure (L) type. Finally, the honest routing: flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
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 publishes regulator flow as curves, not as a single rated figure, so we do not quote a l/min, SCFM or Cv number. Send us your application details and we will confirm the flow and datasheet figures for this 400 size, 3/8 in NPT unit on request before you order.
This code carries a square pressure gauge on the MPa scale, embedded as standard, with an external round gauge available as an option and psi or bar scales selectable. The trailing T means the port thread is NPT (3/8 in); PT is the AirTAC standard thread and G (BSPP) is also available as an orderable specification.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
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.