The AirTAC GR40010F1TK AirTAC Air Pressure Regulator NPT 3/8 in 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 GR40010F1TK is a genuine AirTAC GR-series air pressure regulator for compressed air only. It provides pressure regulation and nothing else: no filter, no bowl and no lubrication. This size 400 unit has NPT 3/8 in ports, a standard regulation range of 0.05-0.9 MPa (7-130 psi), and the trailing K in the code means a reverse (check) valve is fitted. An embedded square gauge with an MPa scale is included, and the mounting bracket comes as standard; the GR body is also panel-mountable.
The GR family is available in sizes 200, 300, 400 and 600 with a choice of PT, G (BSPP) or NPT threads, gauge scales in MPa, psi or bar, a low-pressure type (up to 0.4 MPa) and the reverse-valve option. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the GR temperature range is -20 to 70 C, wider than the rest of the G family. 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 | GR40010F1TK AirTAC Air Pressure Regulator NPT 3/8 in |
|---|---|
| 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 | Fixing bracket included |
| 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 | 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. |
| 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. |
| 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 |
Setting a stable, reduced pressure to a bench-mounted pneumatic press cylinder, with the check valve holding the set circuit against backflow from the downstream side.
Regulating supply pressure to sealing-bar and clamp actuators on a packaging line, where the fitted square MPa gauge lets operators read and verify the setpoint at the machine.
Supplying diverters, gates and stop cylinders on a conveyor line at a controlled pressure below the main header, with the 3/8 in NPT ports matching the machine's air drops.
Size and port set the capacity step: 200, 300, 400 or 600, with ports from 1/8 in to 1 in - this unit is size 400 with NPT 3/8 in. Because flow is published as curves and not a single rating, tell us your required flow and we will confirm sizing against the curves before you order. Other decodable choices are the gauge scale (MPa, psi or bar), the low-pressure L type (up to 0.4 MPa) where your circuit runs below the standard range, the K reverse/check valve, and the thread: PT is the standard, with G (BSPP) and NPT as catalogue options - this code specifies NPT. A bracket is included as standard (order the J variant to omit it).
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 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 required flow and conditions and we will confirm the datasheet curve figures for this 3/8 in size on request before you order.
K means a reverse (check) valve is fitted, allowing flow out of the downstream side to be blocked when inlet pressure is lost. The F1 in the code means the embedded square gauge is included with an MPa scale; psi and 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.