The AirTAC GR30010LF2GK AirTAC Low-Pressure Regulator G3/8 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 GR30010LF2GK is an AirTAC GR300 air pressure regulator: it does one job, holding a steady downstream pressure from your compressed-air supply. This is the low-pressure type (code L), so its adjustment range tops out at 0.4 MPa (about 58 psi) - the right choice for circuits that must never see full line pressure. It carries a 3/8 in port with G (BSPP) thread, an embedded square gauge reading in psi, a reverse/check valve (code K) that helps hold downstream pressure if the upstream supply drops, and a mounting bracket is included. The GR family has no filter bowl and no lubricator - regulation only.
This is a genuine AirTAC part. The GR series spans four sizes (200, 300, 400, 600) with ports from 1/8 to 1 in, standard or low-pressure types, optional reverse/check valve, a choice of square or external round gauge with MPa, psi or bar scales, and PT, G or NPT threads. 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 family. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application.
| Model | GR30010LF2GK AirTAC Low-Pressure Regulator G3/8 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT3/8" (G (BSPP) 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 | 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.
| 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. |
| G | G (BSPP) 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 | 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 |
Set a safe, repeatable holding pressure for clamp cylinders on a CNC fixture, with the check valve helping the circuit hold its setpoint if the main supply dips mid-cycle.
Regulate atomizing air for paint or coating guns that must run well below full shop pressure, keeping the setpoint inside the low-pressure type's 0.4 MPa range.
Supply carton-sealing and pick-and-place cylinders on a packaging line with steady, limited pressure, using the psi gauge for straightforward setpoint checks by operators.
Start with the port: this unit is the 300 size at 3/8 in with G (BSPP) thread - step up to 400 or 600 for larger air demand, or down to 200 for compact lines. PT is the standard thread across the series, with G and NPT available as order options, so match the thread to your pipework. Choose the low-pressure L type only when your setpoint stays at or below 0.4 MPa; the standard GR covers 0.05-0.9 MPa. Pick the gauge scale you want to read (MPa, psi or bar) and decide whether the embedded square gauge is enough or you want the external round gauge. The K option adds a reverse/check valve, and a bracket is included - the GR is also panel-mountable. Flow is published as curves, not a single rated figure, 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 regulator flow as curves rather than a single rated figure, so there is no one l/min or SCFM number we can quote. Tell us your inlet pressure, setpoint and expected air demand, and we will confirm the sizing against the datasheet curves on request before you order.
The L in GR30010LF2GK marks the low-pressure type: its adjustment range tops out at 0.4 MPa (about 58 psi), instead of the standard GR range up to 0.9 MPa. The K means a reverse/check valve is fitted, which helps hold downstream pressure if the upstream supply is lost. The F2 gives you the embedded square gauge with a psi scale.
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.