The AirTAC GR30008JF1TK AirTAC Air Pressure Regulator NPT1/4 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 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 GR30008JF1TK is an AirTAC GR300 series air pressure regulator for compressed air, built purely for pressure regulation - it contains no filter and no bowl. This configuration decodes to a 1/4 in NPT port, a standard regulation range of 0.05-0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and an embedded square pressure gauge scaled in MPa (psi and bar scales are catalogue options). A reverse/check valve (code K) is fitted, and the J code means no mounting bracket is supplied - the GR series is also panel-mountable. Operating temperature is -20 to 70 C, wider than the rest of the G family.
This is a genuine AirTAC part. The GR series spans sizes 200, 300, 400 and 600 with 1/8 in to 1 in ports, and options include thread choice (PT standard, G and NPT to order), gauge scale, a low-pressure type (L, up to 0.4 MPa), reverse/check valve, and bracket. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request.
| Model | GR30008JF1TK AirTAC Air Pressure Regulator NPT1/4 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/4" (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 | 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". |
| (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. |
| 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 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Set a stable, repeatable downstream pressure for clamp cylinders on a CNC fixture line, with the check valve holding the clamp circuit if upstream air is interrupted.
Regulate the supply pressure feeding seal bars, diverters and small actuators on a packaging line, with the square MPa gauge giving operators a local setpoint reference.
Trim the air pressure to a pneumatic valve actuator on a process skid, panel-mounted at the skid edge with the regulator set from the embedded MPa gauge.
Size the GR300 by port and required flow: the G-series steps through sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, so match the 1/4 in NPT port of this unit to your line size and the flow curve for size 300. Choose the gauge scale you want - MPa, psi or bar - and note this unit ships with the embedded square gauge in MPa. Thread is NPT here; PT is the standard and G is an order option. The fitted reverse/check valve (K) holds downstream pressure on upstream supply loss; order the non-K version if you do not want it. The J code means no bracket - add a bracket variant or use panel mounting. If your circuit runs below 0.4 MPa, ask about the GR low-pressure (L) type. Because flow is published as curves, not 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 one number here. Send us your line size and air demand and we will confirm the size-300 curve and sizing against your application on request, from the datasheet.
The F1 in the code means an embedded square pressure gauge scaled in MPa is fitted; psi (2) and bar (3) scales are catalogue options, and N would mean no gauge. The K means a reverse/check valve is fitted, which holds the downstream setting if upstream supply is lost - omit K if you do not need that function.
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.