Airtac GFR Filter Regulator GFR300C08AC1K
The AirTAC GFR Filter Regulator GFR300C08AC1K 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 GFR300C08AC1K
The GFR300C08AC1K is an AirTAC G-series filter regulator with the K option: a reverse (check) valve fitted so a falling supply cannot draw the regulated circuit backwards through the unit. This 300-size configuration decodes with a PT1/4 port (PT is standard; G and NPT are catalogue options), the standard 40 micron element, an automatic drain (A code) on the PC bowl, and a round external pressure gauge on an MPa scale (C1 code). Maximum inlet pressure is 1.0 MPa (145 psi), adjustment is 0.15-0.9 MPa (20-130 psi), and operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part in the GFR300 series, which covers G-family sizes 200 to 600 with ports from 1/8 in to 1 in, and options for drain type, 5 or 40 micron elements, gauge type and scale, check valve and bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and the full datasheet for your application.
Airtac GFR Filter Regulator GFR300C08AC1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08AC1K |
|---|---|
| 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 GFR300C08AC1K
| 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 GFR300C08AC1K Is Used
Actuator hold on a forming machine
Keeping a regulated hold pressure on clamping and forming actuators, with the check valve holding the downstream circuit if plant air is switched off.
Cable and wire processing line
Regulated air for cutters, strippers and pneumatic tensioners on a cable-processing machine, with the 1/4 in port matching the machine's solenoid valves.
Guard interlock and gate-lock cylinders
Supplying guard interlock and gate-locking cylinders on production machinery, where the check valve keeps locks held against supply backflow.
Is the Airtac GFR Filter Regulator GFR300C08AC1K the Right Unit?
Match the size code (200/300/400/600) to your port and flow; this 300 model gives a 1/4 in PT drop for machine point-of-use circuits. Here you get the automatic drain (A) for unattended condensate removal, with manual (M) and differential-pressure as the other codes - manual widens adjustment to 0.05-0.9 MPa (7-130 psi). The element is the standard 40 micron; choose the W code for 5 micron. The K code is this model's distinguishing feature: a fitted reverse (check) valve against backflow. The round external gauge reads MPa; square (F) and psi or bar scales are alternatives. Bracket included; PT, G (BSPP) and T (NPT) threads are specified at order. Flow is published as curves, not a single rating, so ask us to confirm sizing 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 GFR300C08AC1K FAQ
AirTAC publishes G-series flow as curves against pressure and pressure drop, not as one rated figure, so we do not quote a number here. Give us your flow and working pressure and we will confirm sizing against the official datasheet on request.
The trailing letter sets the thread: no letter means PT as the standard for this code, while G (BSPP) and T (NPT) are orderable catalogue options. State your piping standard when ordering and we will confirm the matching variant and its datasheet on request.
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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 GFR300C08AC1K
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.