The AirTAC GR40010C1TK 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 GR40010C1TK is an AirTAC GR-series air pressure regulator: it does one job, holding a stable downstream pressure from a compressed-air supply that varies. This 400-size unit carries a 3/8 in NPT port, and the code confirms a round external pressure gauge scaled in MPa, a built-in reverse (check) valve that lets downstream air back-flow when the upstream side is vented, and an included mounting bracket. The standard-type regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and it operates from -20 to 70 C, a wider temperature window than the rest of the G family.
This is a genuine AirTAC part. The GR line spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, gauge scales in MPa, psi or bar, a low-pressure type (up to 0.4 MPa), and PT, G or NPT threads. Flow figures for this series are published as curves rather than a single rating, so ask us and we will confirm the datasheet numbers for your application on request.
| Model | GR40010C1TK 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 | Fixing bracket included |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Fitted — round, 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). |
| C | Gauge shape: Round. 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 |
Set a fixed, repeatable downstream pressure feeding clamping cylinders and pneumatic presses on a fabrication line, so every cycle clamps with the same force even as the shop-air supply fluctuates.
Regulate the air feeding sealing jaws, diverters and pusher cylinders on a packaging line, where individual machine sections each need their own stable set-point independent of the main header.
Supply a controlled pressure to grippers and tool-changer actuators on a robotic cell, protecting delicate part handling from header-pressure swings while the check valve holds the circuit during upstream venting.
Start with the port and size step: this unit is a 400 body with a 3/8 in NPT port, and the four GR sizes step up in both port and flow capacity, so match the size to the air demand of the circuit rather than to the pipe alone. Set the working pressure inside the 0.05-0.9 MPa (7-130 psi) adjustment range; if your process runs below that, the GR low-pressure type (up to 0.4 MPa) is the decodable alternative. This configuration includes a round gauge scaled in MPa - square embedded gauges and psi or bar scales are the other catalogue choices. The K code means a reverse (check) valve is fitted; order without it if back-flow is not wanted. Thread is NPT here, with PT (standard) and G available as order options, and the bracket is included (GR is also panel-mountable). Flow for this series is published as curves, not a single rating, so send us your application details and we will confirm sizing against the datasheet before you order.
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 performance curves rather than a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Send us your application details and we will confirm the datasheet flow curve and sizing for this 400-size, 3/8 in NPT unit on request.
K means a reverse (check) valve is fitted, allowing downstream air to back-flow when the upstream side is depressurised. The C1 code means the round external gauge is included, scaled in MPa; square embedded gauges and psi or bar scales are available as catalogue 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.