The AirTAC GR30010LC2 AirTAC Air Pressure Regulator PT3/8 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 GR30010LC2 is an AirTAC GR-series air pressure regulator: it does one job, holding downstream pressure steady at the setting you choose. This is the low-pressure type, adjustable up to 0.4 MPa, in the 300 size with PT3/8 (3/8 in) ports. A round pressure gauge with a psi scale is fitted so the setting can be read directly at the unit. Maximum 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-series, which suits it to colder compressed-air installations. There is no bowl or drain on a regulator; filtration and lubrication are separate units.
This is a genuine AirTAC part. The GR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, in standard and low-pressure (L) types, with round or square gauges in MPa, psi or bar scales, an optional reverse/check valve (K), and G (BSPP) or NPT threads as order options. Rated flow is published as curves rather than a single figure, so ask us and we will confirm the datasheet numbers for your application.
| Model | GR30010LC2 AirTAC Air Pressure Regulator PT3/8 Low-Pressure |
|---|---|
| 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 — round, 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). |
| C | Gauge shape: Round. 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 atomising air on a finishing line are run at modest pressures well inside the 0.4 MPa ceiling of this low-pressure type. The regulator holds the gun feed steady so the operator's setting does not drift as the compressor cycles, with the fitted psi gauge read at a glance.
Low-pressure clamp and hold-down cylinders on a machining or assembly fixture need a gentle, repeatable force setting. This 3/8 in regulator sits at the fixture drop and keeps clamp pressure constant through the shift, protecting delicate parts from over-clamping.
Film-sealing bars, pushers and light actuation cylinders on packaging and cartoning machines run at low pressures where a standard regulator is over-ranged. The low-pressure GR gives finer usable adjustment in that band, and the wide -20 to 70 C range suits cold-store-adjacent packing areas.
Start with the port and size: this unit is 300 size with 3/8 in PT threads; step up to 400 or 600 if your line runs larger ports and higher flow. Choose the low-pressure (L) type only when your working setting stays at or below 0.4 MPa - the standard GR type covers the wider 0.05-0.9 MPa range. Gauge options are the embedded square gauge or this external round gauge, in MPa, psi or bar scales; this code carries the round psi version. Threads are PT as standard, with G (BSPP) and NPT available to order. A bracket is included, and the GR body is also panel-mountable. Because rated flow is published as curves rather than a single number, send us your flow and pressure requirements and we will confirm sizing against the datasheet 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 flow as curves rather than a single rated figure, so we do not quote a number on the page. Tell us your line pressure, set pressure and required air consumption, and we will confirm the datasheet flow figures for this 3/8 in, 300-size unit against your application before you order.
The L in the code marks the low-pressure type, adjustable up to 0.4 MPa - the right choice when your working setting sits in that band, where a standard 0.05-0.9 MPa regulator would be over-ranged. The C2 in the code specifies the external round gauge with a psi scale, so settings are read directly in psi without conversion; MPa and bar scales are available on other codes.
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.