The AirTAC GR40010F2K AirTAC Air Pressure Regulator PT3/8 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 GR40010F2K is an AirTAC GR-series air pressure regulator: it does one job, holding your downstream pressure steady at the setting you choose, and it contains no filter, no bowl and no lubricator. This 400-size unit is threaded PT3/8 (3/8 in) and is the standard type, with an adjustment range of 0.05-0.9 MPa (7-130 psi) and a maximum inlet pressure of 1.0 MPa (145 psi). The code F2 means the embedded square gauge is fitted and reads in psi, and the K code means a reverse/check valve is installed so downstream pressure cannot back-feed through the unit. A mounting bracket is included, and the regulator is also panel-mountable. Its operating temperature range is -20 to 70 C, wider than the rest of the G-series families.
This is a genuine AirTAC part. The GR family spans the 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, optional G (BSPP) or NPT threads in place of the PT standard, a low-pressure type (L) limited to 0.4 MPa, round external gauges as an alternative to the embedded square gauge, and gauge scales in MPa, psi or bar. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures against your application before you order.
| Model | GR40010F2K AirTAC Air Pressure Regulator PT3/8 |
|---|---|
| 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 — 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. |
| (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.
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 a steady, reduced pressure feeding a bank of directional control valves on an automated line, with the check valve holding the setting against back-flow when upstream pressure is dumped.
Regulate the working pressure to air cylinders on a clamping or press fixture so tooling force stays repeatable, with the psi gauge letting operators verify the setting at a glance.
Feed baggers, carton sealers and wrapper actuators from a plant air header at a controlled pressure, panel-mounted beside the machine's air preparation point.
Start with the port step: the GR family runs 200/300/400/600 with ports from 1/8 in to 1 in, and the 400 size carries the 3/8 in port fitted here - step up or down a size if your line volume needs a different port. Choose the gauge deliberately: the embedded square gauge is standard and this unit reads in psi, but scales in MPa or bar and an external round gauge are order options. Decide whether you want the reverse/check valve (K) fitted as it is here, and whether the standard type covers your range or you need the low-pressure L type, which is limited to 0.4 MPa. Thread is PT as standard; G (BSPP) and NPT are catalogue options you order by code. A bracket is included and GR is also panel-mountable. One honest note on sizing: flow for this series is published as curves, not a single rating, so ask us to confirm the datasheet figures 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 GR-series flow as curves, not as a single rated number, so there is no honest one-line flow figure we can quote. Send us your application details and we will confirm the datasheet flow curves and sizing for the 400 size at the 3/8 in port before you order.
K means a reverse/check valve is fitted, so downstream pressure cannot push back through the regulator when the inlet is vented or shut off. F2 means the embedded square gauge is included and its scale reads in psi; MPa or bar scales and an external round gauge are available as order options.
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.