The AirTAC GR30010LC1T AirTAC Air Pressure 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 GR30010LC1T is an AirTAC GR-series air pressure regulator: it does one job, holding a stable reduced downstream pressure from your compressed-air supply. This 300-size unit carries a 3/8 in NPT port and is the low-pressure (L) type, so its regulation range tops out at 0.4 MPa - a fit for circuits that must never see full line pressure. It is supplied with an external round pressure gauge scaled in MPa, and a mounting bracket is included; the GR body is also panel-mountable. There is no filter or bowl in this family - it regulates only.
This is a genuine AirTAC part. The GR family spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, standard or low-pressure regulation, gauge choices and G/NPT thread variants. Max working (inlet) pressure is 1.0 MPa (145 psi) and the GR temperature range is -20 to 70 C, wider than the rest of the G series. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing or any datasheet figure for your application before ordering.
| Model | GR30010LC1T AirTAC Air Pressure 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, MPa 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. |
| 1 | Gauge scale: MPa. 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 |
Feeds pilot-air circuits on a directional-valve manifold where actuators and pilot ports are rated below full line pressure, with the round MPa gauge giving operators a direct setpoint readout.
Sits upstream of clamp cylinders on a bench press or jig fixture, holding a reduced, repeatable clamping pressure so delicate or thin-walled parts are held without over-force.
Regulates shop air down to a gentle, stable pressure for lab-scale test rigs, sample holders and air bearings, where the wider -20 to 70 C GR range and panel mounting suit a fixed bench install.
Start with the port step: this 300-size unit takes a 3/8 in NPT port, and larger sizes (400, 600) move up to 1/2 in through 1 in - match the size to the flow your line needs, and we will confirm the flow curve against your demand before you order. The L code here means the low-pressure type, regulating up to 0.4 MPa; if your circuit needs the standard range up to 0.9 MPa, choose a GR without the L code. Gauge options are the embedded square gauge or an external round gauge, with MPa, psi or bar scales - this unit ships with a round MPa gauge. Thread is NPT on this code; PT is the standard catalogue thread and G (BSPP) is also available to order. A mounting bracket is included, and the GR can also be panel-mounted.
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, not as a single rated figure, so we do not quote a flow number. Send us your application demand (port size, downstream equipment, required pressure) and we will confirm the flow-curve sizing from the datasheet on request before you order.
The L in GR30010LC1T marks the low-pressure type, whose regulation range tops out at 0.4 MPa - intended for circuits that must not see full line pressure. If you need the standard range up to 0.9 MPa, order the GR300-10 without the L code. Max inlet pressure on either version is 1.0 MPa (145 psi).
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.