The AirTAC GR30010LF2 AirTAC Low-Pressure Air Regulator PT3/8 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 GR30010LF2 is an AirTAC GR-series air pressure regulator: it does one job, holding a steady downstream pressure from a compressed-air supply, and it carries no filter, no bowl and no lubricator. This is the low-pressure (L) type in the 300 size, so its setting range tops out at 0.4 MPa, which suits circuits that run well below standard line pressure. It is built with 3/8 inch PT ports, a square pressure gauge reading in psi, and a mounting bracket is included; the GR body is also panel-mountable. Max inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -20 to 70 C, wider 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 sizes from 1/8 to 1 inch, in standard or low-pressure types, with your choice of gauge scale (MPa, psi or bar), round or square gauge, a reverse/check valve option, and PT, G or NPT threads. 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 | GR30010LF2 AirTAC Low-Pressure Air Regulator PT3/8 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT3/8" (PT 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, psi 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. |
| 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. |
| (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 |
Spray guns and air-assisted atomizers often run on deliberately reduced air pressure. This low-pressure GR regulator holds a gentle, repeatable setting below 0.4 MPa on a 3/8 inch supply line, with the psi gauge letting an operator check the setting at a glance.
Hold-down and clamping cylinders on cartoning or tray-packing conveyors frequently need soft, low clamping force to avoid crushing product. This regulator keeps the supply to those cylinders at a fixed low pressure, isolated from swings in the main shop-air header.
Air-piloted diaphragm valves and dampers on water-treatment or process skids typically call for a modest, stable pilot pressure. Fed from a 3/8 inch PT line, this regulator holds the pilot circuit steady, and the included bracket makes panel or frame mounting straightforward.
Start with the port step: this unit is the 300 size with 3/8 inch PT ports, one step up from 1/4 inch and one down from 1/2 inch, so match it to your line size and the flow your circuit needs. Then choose the regulator type: this is the low-pressure (L) version, limited to 0.4 MPa, so pick it only if your process never needs standard-range settings; the standard GR type covers up to 0.9 MPa. The fitted square gauge here reads in psi; MPa and bar scales are available, and an external round gauge is an option. Thread is PT as standard, with G and NPT as order options, and a bracket is included (a no-bracket J version exists). One honest note on sizing: AirTAC publishes GR flow as curves, not a single rated number, so send us your application details and we will confirm the right size before you order.
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 performance curves rather than a single rated figure, so we do not quote one number. Tell us your inlet pressure, set pressure and the flow your circuit needs, and we will confirm the datasheet curve and check the sizing for you before you order.
The L in the code marks the low-pressure type, whose setting range tops out at 0.4 MPa. If your process needs settings beyond that, the standard GR type in the same size covers up to 0.9 MPa - ask us and we will quote the standard-range equivalent with the same 3/8 inch PT ports.
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.