Airtac GFR Filter Regulator GFR300C08MF1K
The AirTAC GFR Filter Regulator GFR300C08MF1K is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure 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 sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure 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 GFR Filter Regulator GFR300C08MF1K
The GFR300C08MF1K is an AirTAC G-series filter regulator: water and particle filtration and downstream pressure regulation in one body. This configuration is size 300 with a PT1/4 port (PT is the standard thread), a polycarbonate bowl with manual drain, the standard 40 um filter element, an embedded square pressure gauge scaled in MPa, and a reverse (check) valve fitted to block reverse flow through the unit. The regulating range with manual drain is 0.05-0.9 MPa (7-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C.
It is a genuine AirTAC part. The G series runs from size 200 to 600 with ports from 1/8 in to 1 in, and offers 5 um filtration (W code), automatic or differential-pressure drains, G (BSPP) and NPT thread options, a round external gauge, and bracketless J variants. Flow for the series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and check sizing for your line.
Airtac GFR Filter Regulator GFR300C08MF1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08MF1K |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard scale |
| Reflux valve | Not fitted |
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 GFR Filter Regulator GFR300C08MF1K
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| C0 | Port size See datasheet. This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure 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). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C0 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR300C08MF1K Is Used
Machine inlet supply to solenoid valve banks
Mounted where the plant air line enters the machine, it strips water and pipe scale from the supply and holds a set pressure to the directional valve manifold, while the fitted check valve blocks reverse flow back through the unit.
Bench pneumatic press feed
Feeding a small air cylinder press at the bench, the regulator is set on the MPa square gauge to the pressure the tooling needs and the 40 um element removes condensate and particles carried in from the compressor room.
Carton-sealing packaging line
Point-of-use preparation for the clamping cylinders on a carton sealer: the polycarbonate bowl collects water from the shop air, the regulator holds a steady setting for consistent box clamping, and the included bracket fixes the unit to the machine frame.
Is the Airtac GFR Filter Regulator GFR300C08MF1K the Right Unit?
Size 300 with a PT1/4 port is the mid step of the G series: sizes 200, 300, 400 and 600 move up in port size from 1/8 in to 1 in, so step up or down a size if the flow your circuit needs sits outside the 300 curve - flow is published as curves, not one rated figure, so ask us to confirm sizing against your air consumption before ordering. Manual drain keeps the regulating range at 0.05-0.9 MPa (7-130 psi) and suits duties checked on a routine walk-round; automatic or differential-pressure drain versions trade that for hands-off water removal, with a 0.15-0.9 MPa (20-130 psi) range. The 40 um element is standard (5 um with the W code), the embedded square gauge reads MPa, G (BSPP) and NPT threads are order options, and the bracket is included unless the J code removes it. This unit additionally carries a reverse (check) valve.
Quick checklist
- ✓ Body size for your peak flow (See datasheet 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
Airtac GFR Filter Regulator GFR300C08MF1K FAQ
AirTAC publishes flow for the G series as curves, not as a single rated number, so we do not quote a figure here. Send us your application details and we will confirm the datasheet curve and check the sizing against your air consumption before you order.
With the manual drain you open the bowl drain by hand to empty collected water, which suits installations checked on a regular maintenance round. The manual-drain regulating range is 0.05-0.9 MPa (7-130 psi), wider at the bottom end than the 0.15-0.9 MPa (20-130 psi) range of automatic and differential-pressure drain versions. Maximum inlet pressure is 1.0 MPa (145 psi).
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Standard models are processed and dispatched in 3-5 business days.
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Request a Quote for Airtac GFR Filter Regulator GFR300C08MF1K
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.