The AirTAC GR30008F1TK 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 GR30008F1TK is an AirTAC GR-series air pressure regulator: it does one job, holding downstream pressure steady at the value you set, and it contains no filter, no bowl and no lubricator. This unit is the GR300 size with a 1/4 in NPT port. It is the standard (not low-pressure) type with a regulation range of 0.05-0.9 MPa (7-130 psi), and it arrives with the embedded square pressure gauge fitted (MPa scale; an external round gauge is optional, with MPa, psi or bar scales available). The K code means a reverse/check valve is fitted, holding the set pressure if upstream supply is interrupted. A mounting bracket is included, and the GR300 can also be panel-mounted. Maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -20 to 70 C, wider than the rest of the G-series families.
This is a genuine AirTAC part from the GR300 family, one of four sizes (200/300/400/600) that step up in port size and flow capacity. Port and thread options, gauge scale, the low-pressure type and the reverse/check valve are all orderable variants. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GR30008F1TK 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 | Fixing bracket included |
| 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. |
| (blank) | Fixing bracket included. |
| (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 and press cylinders on an assembly fixture, with the check valve holding the set point if the supply drops.
Feed carton sealers, case erectors and wrapping heads with regulated air at the pressure the machine builder specifies, read directly off the square MPa gauge.
Regulate supply pressure to gripper actuators on a robotic cell so part-holding force stays consistent, with panel or bracket mounting to suit the cell layout.
Pick the GR size by port and flow: the GR300 with its 1/4 in port suits typical machine-air circuits, while GR200, GR400 and GR600 step down or up as your line demands. Set the outlet with the 0.05-0.9 MPa (7-130 psi) adjustment range; if your circuit never exceeds 0.4 MPa, the low-pressure (L) variant is available. Choose the gauge scale you read in - MPa, psi or bar - and square (embedded) or round (external) gauge style. Thread is PT as standard; G (BSPP) and NPT are order options, and this unit is already coded NPT. The K option adds a reverse/check valve, and a mounting bracket is included (J orders it without). Because flow is published as curves, not a single rating, ask us to confirm sizing against your air demand before you order.
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 curves, not as a single rated number, so we do not quote a l/min, m3/h or SCFM figure. Tell us your air demand and line pressure and we will confirm the sizing from the datasheet on request before you order.
K means a reverse/check valve is fitted, so the set downstream pressure is held if the upstream supply is interrupted. This unit carries the embedded square gauge on the MPa scale; psi or bar scales, and an external round gauge, are available as order options.
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.