The AirTAC GR40010LF1T AirTAC Regulator NPT3/8 Low-Pressure Type is a genuine G-series air pressure regulator. It holds a stable downstream pressure over the range 0.05 - 0.4 MPa (7 - 58 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 GR40010LF1T is an AirTAC GR400 series air pressure regulator for compressed air only. It reduces and holds a stable downstream pressure with an adjustment range of up to 0.4 MPa, because this is the low-pressure (L) type of the GR family. This configuration is sized for a 3/8 in port with NPT thread, carries a maximum inlet pressure of 1.0 MPa (145 psi), and operates from -20 to 70 C, the widest temperature window in the G series. The embedded square pressure gauge fitted here reads in MPa; an external round gauge is available as an option. No reverse (check) valve is fitted, and the unit includes a mounting bracket, with panel mounting also possible.
This is a genuine AirTAC part. The GR family spans four sizes (200, 300, 400, 600) with increasing port sizes and flow capacity, and is offered in standard and low-pressure types, with or without a gauge, and with G, NPT or PT threads. Flow is published as curves rather than a single rated figure, so we confirm the flow and datasheet figures for your application on request.
| Model | GR40010LF1T AirTAC Regulator NPT3/8 Low-Pressure Type |
|---|---|
| Series | GR400 pressure regulator |
| Port size | PT3/8" (NPT thread) |
| Regulating range | 0.05 - 0.4 MPa (7 - 58 psi) |
| Pressure type | Low-pressure 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 | 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". |
| L | Low-pressure type — 0.05 - 0.4 MPa (7 - 58 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. |
| (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 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR300 |
| One size up | GR600 |
| Line order | Filter first, then regulator, then lubricator |
Holds a reduced, steady supply pressure to bagging or wrapping heads that are not rated for full line pressure, with the square MPa gauge giving the operator a direct setpoint reading.
Regulates the low-pressure air feeding loom, doctor-blade or web-tension pneumatics, where the -20 to 70 C operating window suits plant air halls and cooler sections alike.
Sets a repeatable reduced pressure on a workshop test bench or assembly fixture, with the 3/8 in NPT port matching standard shop plumbing and the included bracket allowing panel mounting.
Choose the GR size by the port and flow your line needs: 200, 300, 400 or 600, stepping up as required flow grows - here the 400 size with a 3/8 in NPT port. Pick the regulator type by the pressure you actually need: this low-pressure (L) version adjusts up to 0.4 MPa, while the standard type covers 0.05-0.9 MPa. Gauge scale is a real choice (MPa, psi or bar); this unit ships with the square gauge in MPa. Thread is a decodable option: PT is the standard, while G (BSPP) and NPT are catalogue options to order - this code specifies NPT. A bracket is included, and GR can also be panel-mounted. 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 GR-series flow as curves, not as a single rated figure, so we do not quote a number here. Tell us your line pressure, set pressure and expected air demand, and we will confirm the flow and datasheet figures for this 3/8 in unit on request before you order.
The L in GR40010LF1T marks the low-pressure version of the GR family: its adjustment range tops out at 0.4 MPa instead of the standard type's 0.05-0.9 MPa. Choose it when your downstream device needs gentle, stable pressures below 0.4 MPa; if you need to set higher, ask us for the standard-type GR400 equivalent.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.