The AirTAC GR30010LC2T AirTAC Low-Pressure Air Regulator NPT3/8 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 GR30010LC2T is a genuine AirTAC GR-series air pressure regulator: it does one job, holding a steady downstream pressure from a compressed-air supply, and nothing else - no filter element, no drain bowl and no lubricator are part of this family. This 300-size unit is decoded as low-pressure type, so its setting range tops out at 0.4 MPa, and it carries a round pressure gauge reading in psi. The 3/8 in NPT port suits mid-size supply lines, and the maximum inlet pressure is 1.0 MPa (145 psi).
GR300 is one of four sizes in the range (200/300/400/600) with port options from 1/8 in to 1 in, and the family offers standard as well as low-pressure regulation, gauge choices, a reverse/check valve option, and G or NPT thread variants to order. As a pure regulator the GR has no bowl, and it is rated for -20 to 70 C - a wider temperature window than the rest of the G series. We confirm flow and datasheet figures on request.
| Model | GR30010LC2T AirTAC Low-Pressure Air Regulator NPT3/8 |
|---|---|
| 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 — 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. |
| 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 |
On a carton-sealing or case-packing machine, the clamp and hold-down cylinders often need a gentle, stable pressure well below the main supply. This low-pressure GR300 regulator, set up to 0.4 MPa with its psi gauge, lets a technician dial in and read the clamp pressure directly at the machine.
A test bench or pilot rig running air-actuated fixtures at low setpoints needs a regulator that stays put and reads clearly. The round psi gauge on this unit gives a direct local reading, and the -20 to 70 C rating covers unheated workshop and lab spaces.
Tapping a 3/8 in branch off a factory air header to feed actuators, air bearings or a low-pressure process point calls for a dedicated regulator at the drop. This 300-size GR with NPT threads drops straight into standard US piping, with the included bracket mounting it to the frame or panel.
Start with the port step: this unit is 3/8 in NPT, and the GR family steps 200/300/400/600 through 1/8 in to 1 in, so match the size to the supply line and the flow your circuit needs. Then check the pressure window: the low-pressure (L) type shown here regulates up to 0.4 MPa, while the standard GR covers 0.05-0.9 MPa - pick the type that brackets your working pressure rather than overshooting it. Gauge scale is your call (MPa, psi or bar); this configuration is a round gauge in psi.
Thread is the other decodable choice: PT is the catalogue standard, with G (BSPP) and NPT as order options - this unit is the NPT variant. A mounting bracket is included, and GR is also panel-mountable. Flow for the GR series is published as curves rather than a single rated figure, so ask us to confirm sizing against your application before ordering.
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 curves, not as a single rated number, so we do not quote a l/min or SCFM figure. Tell us your line size, inlet pressure and target downstream pressure, and we will confirm the flow from the datasheet on request before you order.
The L in GR30010LC2T marks the low-pressure type: its setting range goes up to 0.4 MPa instead of the standard GR range of 0.05-0.9 MPa. Choose the L type when your working pressure sits in the lower band and you want finer, more usable adjustment there; choose the standard type when you need to set higher. Maximum inlet pressure is 1.0 MPa (145 psi) either way.
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.