AirTAC GFR300-15 Filter Regulator (GFR30015AC1WK)
The AirTAC AirTAC GFR300-15 Filter Regulator (GFR30015AC1WK) is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" ports, a automatic drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
- TypeFilter regulator
- Port sizePT1/2"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- DrainAutomatic drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC GFR300-15 Filter Regulator (GFR30015AC1WK)
GFR30015AC1WK is an AirTAC GFR-series filter regulator: filtration and pressure regulation combined in a single body, with a drain bowl but no lubricator. This 300-size unit has a PT1/2 port, a 5 um (W) filter element, an automatic drain, an external round pressure gauge with an MPa scale, and a reverse (check) valve fitted so downstream pressure is held if the supply drops. Outlet pressure is adjustable over 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), the polycarbonate bowl suits -5 to 70 C (non-freezing), and a bracket is included.
This is a genuine AirTAC part. The G-series spans sizes 200, 300, 400 and 600 with ports from 1/8in to 1in, G (BSPP) or NPT threads as orderable options, a choice of drains, 40 um standard or 5 um elements, and gauge options. AirTAC publishes flow only as performance curves rather than a single rated figure, so we confirm datasheet and flow figures for your application on request.
AirTAC GFR300-15 Filter Regulator (GFR30015AC1WK) Technical Specifications
| Model | AirTAC GFR300-15 Filter Regulator (GFR30015AC1WK) |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). Air must not freeze in the unit. 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 GFR300-15 Filter Regulator (GFR30015AC1WK)
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (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, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - 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. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR300 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Where the AirTAC GFR300-15 Filter Regulator (GFR30015AC1WK) Is Used
CNC machine pneumatic circuits
Regulated, filtered air for tool-change cylinders and clamps on CNC machining centres; the check valve holds actuator positions through brief plant supply dips.
Sorter module actuation
Supplying pop-up wheels and divert modules on parcel sorter lines, where the automatic drain suits continuous multi-shift running and the check valve keeps modules in position during air surges.
Press head counterbalance feed
Setting counterbalance and hold-down pressures on pneumatic press heads, with the MPa gauge giving a repeatable setpoint and the check valve preventing pressure decay between strokes.
Is the AirTAC GFR300-15 Filter Regulator (GFR30015AC1WK) the Right Unit?
This is the same 300-size, 1/2in PT configuration as the GFR30015AC1W with one difference: the K adds a reverse (check) valve, so specify this code where downstream pressure must survive a supply interruption. The 5 um element suits fine-protection duties; the standard 40 um grade is the choice for coarse protection only. The automatic (A) drain suits unattended panels, and the round gauge reads in MPa - psi or bar scales are available.
Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering. Thread (G/NPT) and gauge scale options can be specified at order.
Quick checklist
- ✓ Body size for your peak flow (PT1/2" here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC GFR300-15 Filter Regulator (GFR30015AC1WK) FAQ
AirTAC publishes flow as performance curves rather than a single rated figure, so no single rated number is quoted here. Send us your application details and we will confirm the datasheet and flow curves for this model on request.
Only by the trailing K, which adds a reverse (check) valve so downstream pressure is retained if the upstream supply is lost. Everything else - 1/2in PT port, 5 um element, automatic drain, round MPa gauge - is identical; choose the code without K where no check function is needed.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for AirTAC GFR300-15 Filter Regulator (GFR30015AC1WK)
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.