The AirTAC GR40010F2GK AirTAC Air Pressure Regulator, G3/8 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 GR40010F2GK is an AirTAC GR-series air pressure regulator: it does one job, holding your downstream compressed-air pressure steady at the value you set. This 400-size unit is built around a 3/8 in port with G (BSPP) thread, and being a regulator it carries no filter, no bowl and no drain. It is the standard (non low-pressure) type with an adjustment range of 0.05-0.9 MPa (7-130 psi), a maximum inlet pressure of 1.0 MPa (145 psi), and an embedded square gauge reading in psi (an external round gauge is optional, with MPa/psi/bar scales available). A reverse/check valve is fitted, and the unit includes a mounting bracket and can also be panel-mounted.
This is a genuine AirTAC part. The GR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, optional G or NPT thread in place of the PT standard, a low-pressure type (L) limited to 0.4 MPa, and gauge or bracket options. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GR40010F2GK AirTAC Air Pressure Regulator, G3/8 |
|---|---|
| Series | GR400 pressure regulator |
| Port size | PT3/8" (G (BSPP) 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 — square, psi 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.
| 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| G | G (BSPP) 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.
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 |
On a bench or C-frame press driven by air cylinders, the regulator sets the downstream pressure that determines clamping or forming force, letting an operator dial in a repeatable setting for each job.
On a carton-sealing or wrapping line, the regulator holds a steady supply pressure to the machine's air cylinders and actuators so sequencing valves and grippers behave consistently through the shift.
On a distribution conveyor with air-powered diverters, gates and pop-up rollers, the regulator fixes the pressure feeding those devices so products are diverted gently and reliably without overdriving the cylinders.
Size your GR by the port step: 200 (1/8-1/4 in), 300 (3/8-1/2 in), 400 (3/8-3/4 in) and 600 (3/4-1 in) - the larger the size, the larger the port and the more air it can pass, so pick the size that matches your line's air demand rather than just the existing pipe thread. This unit is the standard type (0.05-0.9 MPa); a low-pressure L type limited to 0.4 MPa exists if your process cannot tolerate higher settings. Choose the gauge scale you want (MPa, psi or bar) and square embedded versus round external. Thread is PT as standard, with G (BSPP) and NPT as orderable options - this code is the G version. Decide whether you want the reverse/check valve (K) that holds downstream pressure if the supply drops, and whether the included bracket or panel mounting suits your installation. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
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 publishes regulator flow as curves rather than a single rated figure, so we do not quote a l/min, m3/h or SCFM number for this unit. Tell us your operating pressure range and air demand and we will confirm the flow from the datasheet on request before you order.
Both are read from the code. The F2 in GR40010F2GK specifies the embedded square gauge with a psi scale (MPa and bar scales are also available, and an external round gauge is optional). The trailing K specifies the reverse/check valve, which holds the downstream setting if upstream supply is lost. The G specifies the G (BSPP) thread; PT is the standard thread and NPT is also an orderable option.
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.