The AirTAC GR30008LC2GK AirTAC Air Pressure Regulator G1/4 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 PT1/4" 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 GR30008LC2GK is an AirTAC GR-series air pressure regulator: it does one job, holding downstream pressure steady, and it does nothing else - no filter, no bowl, no lubricator. This is the low-pressure type (code L), set up to regulate at up to 0.4 MPa, with a 1/4 in G (BSPP) port on the 300 size body. The trailing C2 in the code means an external round gauge on the psi scale is fitted, and the K adds a reverse (check) valve so downstream pressure cannot back up through the unit. The mounting bracket is included, and the GR body is also panel-mountable.
This is a genuine AirTAC part. The GR family spans the 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, standard or low-pressure regulation, gauge or no-gauge builds, and PT, G or NPT threads (PT is the standard; G and NPT are order options). 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. Because AirTAC publishes flow as curves rather than a single rated figure, we confirm the datasheet and flow data for your application on request.
| Model | GR30008LC2GK AirTAC Air Pressure Regulator G1/4 Low-Pressure |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/4" (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 — round, 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. |
|---|---|
| 08 | Port size PT1/4". 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. |
| 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 · PT1/4" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Sets a gentle, stable supply pressure to spray guns and air-assist nozzles on a paint or coating line, where working pressures sit well below the standard regulator range.
Holds a constant low clamp pressure on carton-closing or tray-forming fixtures, with the check valve preventing downstream backflow from disturbing the setting.
Regulates the low-pressure air feed to weft-insertion and fabric-holddown circuits on a weaving machine, with the psi gauge giving operators a local reading.
Start with the port and size: the 300 size with a 1/4 in port suits mid-range lines, and stepping up to 400 or 600 gives a larger port and more flow capacity - match the step to your demand rather than oversizing blindly. This unit is the low-pressure type, so choose it where your working pressure sits at or below 0.4 MPa; if you need the full 0.05-0.9 MPa span, the standard GR build is the right pick instead. The fitted round gauge reads in psi; square embedded gauges and MPa or bar scales are the other catalogue choices. Thread is G (BSPP) here, with PT as the standard and NPT available to order. The bracket is included, and GR also panels-mounts. Flow for these regulators is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 we do not quote a number here. Tell us your inlet pressure, set pressure and demand, and we will confirm the flow and datasheet figures for this exact model on request before you order.
The L in the code marks the low-pressure type of the GR family, which regulates at up to 0.4 MPa. It still accepts up to 1.0 MPa (145 psi) inlet. If your setpoint needs to go higher, choose a standard GR build instead - we can decode the right code with you.
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.