Airtac GFR Filter Regulator GFR300C08AC1WK
The AirTAC GFR Filter Regulator GFR300C08AC1WK 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 GFR300C08AC1WK
GFR300C08AC1WK is an AirTAC G-series filter regulator: filtration and pressure regulation in one body, with a drain bowl and no lubricator. This configuration is the 300 size with a 1/4 in PT port, a 5 um filter element, automatic drain, a round external pressure gauge scaled in MPa and a fitted reverse (check) valve. It removes water and particulate from compressed air and holds downstream pressure in the 0.15-0.9 MPa (20-130 psi) adjustment range, with a maximum working pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing). The 300-size bowl is polycarbonate (PC).
This is a genuine AirTAC part. The GFR series is offered in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, a choice of 40 um standard or 5 um (W) elements, differential-pressure, automatic or manual drains, embedded square or external round gauges (MPa, psi or bar scales), an optional reverse/check valve and G (BSPP) or NPT thread options. Flow is published as curves rather than a single rating, so ask us to confirm datasheet and sizing figures for your application on request.
Airtac GFR Filter Regulator GFR300C08AC1WK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08AC1WK |
|---|---|
| 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 GFR300C08AC1WK
| 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 GFR300C08AC1WK Is Used
Pilot-air supply to large process valves
Conditions and regulates the 1/4 in pilot line feeding positioner and pilot solenoids on automated process valves, with the 5 um element and automatic drain keeping the pilot circuit dry and clean.
Pick-and-place robot end-of-arm air
Mounted in the services run to a robotic gripper circuit, where the check valve holds the gripped pressure if the main air is shut off mid-cycle and the 5 um grade protects small valve ports.
Air curtains and hold-down on bottling lines
Supplies regulated air to bottle hold-down and air-curtain nozzles on a filling line, with the automatic drain coping with condensate from a humid bottling-hall air main.
Is the Airtac GFR Filter Regulator GFR300C08AC1WK the Right Unit?
The code carries the choices. Size 300 with a 1/4 in PT port is the mid-range step: drop to 200 for compact lines or up to 400/600 as pipe and flow demand grow. The A selects the automatic drain, so the bowl sheds condensate unattended; the manual drain code instead gives operator-controlled draining and a regulation range down to 0.05 MPa (7-130 psi). The W selects the 5 um element over the 40 um standard, C1 orders a round external gauge on a MPa scale, and the trailing K fits a reverse (check) valve that holds downstream pressure if the upstream line is vented. PT is the standard thread; G (BSPP) and NPT are catalogue options to order. Flow is published as curves, not a single rating, so ask us to confirm sizing against the datasheet before ordering.
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 GFR300C08AC1WK FAQ
AirTAC publishes flow for the G series as curves rather than a single rated figure, so we do not quote a rated flow number. Send us your line pressure and air demand and we will confirm the sizing against the datasheet on request.
K means a reverse (check) valve is fitted in this filter regulator. It blocks backflow from the downstream side, which helps hold the regulated pressure if the supply line upstream is depressurised. The same unit without the K omits the check valve.
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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 GFR Filter Regulator GFR300C08AC1WK
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.