The AirTAC GR30010JF2GK AirTAC Air Pressure Regulator G3/8 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 GR30010JF2GK is an AirTAC GR-series air pressure regulator, a regulation-only unit: it steps downstream pressure down to a set working level and holds it steady. This 300-size configuration carries a 3/8 inch port with G (BSPP) thread, a standard regulation range of 0.05-0.9 MPa (7-130 psi), and an embedded square gauge scaled in psi so operators can read and adjust setpoints directly. A built-in reverse (check) valve lets downstream air hold or exhaust as designed when upstream supply is interrupted, and the J code means no mounting bracket is supplied - GR bodies can also be panel-mounted.
This is a genuine AirTAC part. The GR family spans sizes 200, 300, 400 and 600 with port options from 1/8 to 1 inch, a choice of gauge scale (MPa, psi or bar), an optional low-pressure type limited to 0.4 MPa, and PT, G or NPT threads. GR units handle a maximum inlet pressure of 1.0 MPa (145 psi) and operate from -20 to 70 C, wider than the rest of the G family. Flow for this series is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GR30010JF2GK AirTAC Air Pressure Regulator G3/8 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT3/8" (G (BSPP) 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, 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". |
| (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. |
| 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 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Set and hold a stable downstream pressure feeding clamping cylinders or a pneumatic press, so workpieces are gripped at a consistent, repeatable force shift after shift. The check valve helps hold the set circuit condition if upstream supply drops.
Regulate the air feeding diverters, pushers and sealing cylinders on a packaging or cartoning line, keeping actuator speeds predictable as the header pressure wanders during the day.
Drop shop-air pressure to the level a CNC machine tool or workholding fixture expects at its air inlet, with the psi-scaled gauge letting maintenance verify the setpoint at a glance.
Start with the port step: GR comes in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, so match the size to the air demand of the circuit - larger sizes carry larger ports and higher flow capacity. Set the working range you need: the standard GR adjusts from 0.05-0.9 MPa (7-130 psi); if your setpoint stays at or below 0.4 MPa, the low-pressure L type is available. Choose the gauge scale that suits your operators - MPa, psi or bar - and decide whether you want the embedded square gauge fitted or omitted. Pick the thread for your piping: PT is the standard, with G (BSPP) and NPT available as order options. Decide on a mounting bracket (this J-coded unit ships without one, though GR is also panel-mountable) and whether a reverse/check valve is needed - it is fitted on this model. Because flow is published as curves rather than a single rating, 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 GR-series flow as performance curves rather than a single rated figure, so we do not quote a rated flow number. Tell us your application and we will confirm the relevant datasheet figures on request before you order.
The F2 in the code means a square gauge is fitted, scaled in psi (MPa and bar scales are also available, and an external round gauge is optional). The K means a reverse/check valve is fitted. The J means no mounting bracket is supplied, though GR bodies can also be panel-mounted.
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.