AirTAC GR300-08 Pressure Regulator (GR30008F1K)
The AirTAC AirTAC GR300-08 Pressure Regulator (GR30008F1K) 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.
- TypePressure regulator
- Port sizePT1/4"
- Regulating range0.05 - 0.9 MPa (7 - 130 psi)
- Pressure typeStandard type
- Pressure gaugeFitted
- Reflux valveFitted
- ThreadPT
- BracketFixing bracket included
About the AirTAC GR300-08 Pressure Regulator (GR30008F1K)
The GR30008F1K is a genuine AirTAC G-series air pressure regulator: it does one job, holding a steady downstream pressure from a compressed-air supply. This 300-size unit has a 1/4 in PT port, an embedded square pressure gauge scaled in MPa for direct setpoint reading, and a built-in reverse (check) valve that keeps downstream pressure in place if the upstream supply drops. Set range is 0.05-0.9 MPa (7-130 psi), max inlet pressure is 1.0 MPa (145 psi), and the service temperature range is -20 to 70 C.
This is a genuine AirTAC part in the G series, which spans 200/300/400/600 sizes with 1/8 in to 1 in ports. Gauge scale, thread (PT standard, G and NPT as options) and reverse-valve fitment can be selected per code. We confirm flow and datasheet figures on request, because flow is published as curves rather than a single rated number.
AirTAC GR300-08 Pressure Regulator (GR30008F1K) Technical Specifications
| Model | AirTAC GR300-08 Pressure Regulator (GR30008F1K) |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/4" (PT 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.
Model Code: AirTAC GR300-08 Pressure Regulator (GR30008F1K)
| 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. |
| (blank) | PT 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.
Size Class
- GR200PT1/8" - PT1/4"
- GR300PT1/4" - PT1/2"
- GR400PT3/8" - PT1/2"
- GR600PT3/4" - PT1"
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 |
Where the AirTAC GR300-08 Pressure Regulator (GR30008F1K) Is Used
Pneumatic press clamping circuit
Set a repeatable clamping pressure for a bench pneumatic press: the regulator holds the cylinder supply steady so parts are clamped with the same force cycle after cycle, and the MPa gauge lets the setter dial the value in directly.
Paint spray booth air supply
Placed at the drop to a spray gun or air-assisted applicator, it keeps atomising pressure constant even as other equipment on the shared compressed-air main starts and stops, and the check valve holds the line if supply is interrupted.
Packaging machine actuator supply
On a cartoning or bagging line, individual stations need different air pressures; a 1/4 in regulator at each station branch lets engineers trim each actuator independently without touching the plant air setting.
Is the AirTAC GR300-08 Pressure Regulator (GR30008F1K) the Right Regulator?
Step up or down through the G series by size: 200, 300, 400 and 600 give progressively larger ports and more flow, so match the 1/4 in PT port here to your supply line and the air demand of the machine. For this standalone regulator the set range is 0.05-0.9 MPa (7-130 psi). Choose your gauge scale by code: this version carries a square gauge in MPa; psi and bar variants exist in the same size. The K code adds a reverse/check valve where you need downstream pressure held. Thread: PT is the standard; G (BSPP) and NPT are catalogue options to order. A mounting bracket is included. Flow for this series is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
- ✓ Body size for your peak flow (PT1/4" here)
- ✓ Standard 0.9 MPa or low-pressure 0.4 MPa
- ✓ Gauge fitted, or order N without
- ✓ Gauge shape C round / F square
- ✓ Scale MPa (1), psi (2) or bar (3)
- ✓ Reflux valve needed, order K
Installation & Maintenance Notes
- check Install downstream of the filter, following the airflow arrow.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure while air is flowing, then lock the knob.
- check Adjust within 0.05 - 0.9 MPa (7 - 130 psi) only.
- check Operating range -20 to +70 °C.
- check Panel-mount or use the fixing bracket; do not hang it on tubing.
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 GR300-08 Pressure Regulator (GR30008F1K) FAQ
AirTAC publishes regulator flow as characteristic curves rather than a single rated figure, so there is no one number we can honestly quote. Send us your line pressure, set pressure and expected air demand, and we will confirm the sizing against the datasheet curves on request before you order.
In the GR code, the gauge position carries the style and scale: F is the embedded square gauge and 1 selects the MPa scale (2 and 3 select psi and bar). The trailing K means a reverse (check) valve is fitted, which holds downstream pressure if the upstream supply drops. Other codes in the same 300 size give you psi or bar scales, no gauge, or no check valve.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for AirTAC GR300-08 Pressure Regulator (GR30008F1K)
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.