The AirTAC GR30010JF1T 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 - 0.9 MPa (7 - 130 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 GR30010JF1T is an AirTAC GR300 series air pressure regulator for compressed air, built around one job only: holding a stable downstream pressure. This configuration decodes to a 3/8 in NPT port, a standard-type regulator with an adjustment range of 0.05-0.9 MPa (7-130 psi), a maximum inlet pressure of 1.0 MPa (145 psi), and an operating temperature of -20 to 70 C. The F1 suffix means a square pressure gauge with an MPa scale is fitted, embedded in the body, so the set pressure is visible at the unit. The J suffix means no mounting bracket is supplied; GR regulators are also panel-mountable.
This is a genuine AirTAC part. The GR family spans four sizes (200, 300, 400, 600) with port sizes from 1/8 in to 1 in, and options that include G (BSPP) or NPT threads in place of the PT standard, an external round gauge, psi or bar gauge scales, a low-pressure type limited to 0.4 MPa, a reverse/check valve, and a panel-mount arrangement. Because AirTAC publishes regulator flow only as curves rather than a single rated figure, we confirm the datasheet and flow figures for this exact model on request.
| Model | GR30010JF1T AirTAC Air Pressure Regulator NPT3/8 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT3/8" (NPT thread) |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard type |
| Bracket | Supplied without bracket |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Fitted — square, 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". |
| (blank) | Standard type — 0.05 - 0.9 MPa (7 - 130 psi). Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. 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 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Set and hold the working pressure feeding an air-over-oil or direct-air press cylinder on a production line, so forming or staking force stays repeatable from cycle to cycle.
Regulate the supply to sealing jaws, clamps and pushers on a packaging or cartoning line, protecting actuators from line-pressure swings while the square gauge shows the setpoint.
Drop the header pressure at a 3/8 in branch line serving a work cell, so downstream valves and cylinders see a steady, controlled pressure instead of the full compressor header.
Start with the port step: GR sizes 200, 300, 400 and 600 map to 1/8, 1/4, 3/8, 1/2, 3/4 and 1 in ports, and the right size is the one whose flow curve covers your demand at an acceptable pressure drop - not a single rated number. Then fix the options that this code carries: gauge scale (MPa, psi or bar), thread (PT is the standard; G and NPT are order options, as on this NPT unit), bracket or panel mounting, and whether you need the low-pressure L type (up to 0.4 MPa) or the reverse/check valve K option. The honest routing: because flow is published as curves rather than a single rating, 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 regulator flow as curves, not as a single rated figure, so there is no one flow number we can honestly quote. We will confirm the datasheet and the flow curve for this exact 3/8 in GR300 model on request, and help you check it against your application before you order.
PT is the standard thread across the GR series. G (BSPP) and NPT are catalogue options you select by the trailing code letter, and this unit carries T for NPT 3/8 in. You order the thread you need as part of the model code; it is a specification choice, not a delivery promise.
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.