The AirTAC GR30010LF1T AirTAC Pressure Regulator NPT3/8 Low-Pressure 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 GR30010LF1T is an AirTAC GR-series air pressure regulator, built purely for pressure regulation - it contains no filter, no bowl and no lubricator. This unit is the low-pressure type (L), with an adjustment range up to 0.4 MPa, in the 300 size with a 3/8 in NPT female port. It carries an embedded square pressure gauge with an MPa scale, and no reverse (check) valve is fitted. A mounting bracket is included, and the GR body is also panel-mountable. Maximum inlet pressure is 1.0 MPa (145 psi), and the GR series 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 series is available in 200, 300, 400 and 600 sizes with port sizes from 1/8 in to 1 in, in standard or low-pressure types, with gauge and thread options to order. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures against your application.
| Model | GR30010LF1T AirTAC Pressure Regulator NPT3/8 Low-Pressure |
|---|---|
| Series | GR300 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.
| GR300 | G-series pressure regulator, 300 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 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 | GR300 · PT3/8" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Dropping booth air to a gentle, stable pressure before atomising spray guns, where a low set point and a visible MPa gauge keep finish quality consistent across shifts.
Feeding delicate sealing and folding actuators on a carton packaging line that run at reduced pressure, with the 3/8 in port serving a multi-drop drop from the main header.
Regulating a low-pressure air knife or blow-off nozzle on a conveyor line, where the low-pressure type keeps delicate products and lightweight film from being disturbed.
Start with the port step: the 300 size with a 3/8 in port suits lines where 1/4 in is too small, but the right step depends on the flow your circuit needs - flow is published as curves, not a single rating, so ask us to confirm sizing before ordering. Choose the low-pressure type (L) only when your set point stays at or below 0.4 MPa; for higher set points use the standard GR type. This unit ships as decoded with an NPT thread (PT is the AirTAC standard; G/BSPP and NPT are order options), a square gauge with MPa scale (psi or bar scales and an external round gauge are available), no reverse valve, and the bracket included - a no-bracket (J) variant exists if you panel-mount.
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 regulator flow as curves rather than a single rated number, so we do not quote a rated flow, Cv or l/min figure. Ask us and we will confirm the datasheet flow curve for the 300 size against your application before you order.
L marks the low-pressure regulator type, with an adjustment range up to 0.4 MPa. Choose it when your set point stays within that window; for higher set points, order the standard GR type instead. The rest of the code decodes as 300 size, 3/8 in NPT port, square gauge with MPa scale, and NPT thread.
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.