Airtac GFR Filter Regulator GFR300C08C1
The AirTAC GFR Filter Regulator GFR300C08C1 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 GFR300C08C1
The AirTAC GFR300C08C1 is a filter regulator: filtration and pressure regulation combined in one body, with a drain bowl but no lubricator. This code decodes to a size-300 unit with a 1/4 inch PT port, the standard 40 um filter element, the default differential-pressure drain, a mounting bracket included, and an external round pressure gauge scaled in MPa. Maximum working pressure is 1.0 MPa (145 psi), the regulation range with this drain type is 0.15-0.9 MPa (20-130 psi), and the size-300 bowl is polycarbonate.
It is a genuine AirTAC part. The GFR family runs from size 200 to 600 with ports from 1/8 to 1 inch, PT as the standard thread and G (BSPP) or NPT as orderable options; element grade, drain type, gauge style and scale vary by code. Operating temperature is -5 to 70 C, non-freezing. AirTAC publishes flow as curves rather than a single rating, so we confirm datasheet figures on request.
Airtac GFR Filter Regulator GFR300C08C1 Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C08C1 |
|---|---|
| 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 GFR300C08C1
| 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 GFR300C08C1 Is Used
Set-point tuning on machine build benches
Bench setup of pneumatic sub-assemblies before they go into a machine: the round MPa gauge gives the builder a clear reading while dialling the regulator to the drawing's set point, and the 40 um element conditions the bench supply.
Pneumatic test rigs in the quality lab
Supplying actuator and leak-test stations in a quality lab, where the technician needs a visible regulated pressure while cycling test pieces, and the differential-pressure drain suits a rig that runs only when staffed.
Visible-pressure drop on a filling line
Mounted at a filling line's air drop so operators can glance at the round gauge during changeovers and confirm the downstream actuators are getting their set pressure before restarting the line.
Is the Airtac GFR Filter Regulator GFR300C08C1 the Right Unit?
Size 300 with the 1/4 inch PT port is the mid-range choice; step to 400 or 600 for larger ports or 200 for compact circuits. The drain here is the differential-pressure default; codes with A give fully automatic draining and M gives a manual blow-down if you prefer operator control. The 40 um element is the standard grade - W selects 5 um. The C1 option fits the external round gauge reading in MPa; if you would rather have the embedded square gauge, or scales in psi (2) or bar (3), other GFR300 codes carry those. Bracket is included on this code (J removes it). Before ordering, ask us to confirm sizing: AirTAC publishes flow as curves, not a single rating, so we check the curve against your demand.
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 GFR300C08C1 FAQ
AirTAC publishes G-series capacity as flow curves rather than one rated figure, so we do not quote a number here. Give us your required flow and working pressure and we will confirm the datasheet curve for this 1/4 inch PT, 40 um, differential-drain configuration before you order.
It is the gauge option: C = external round pressure gauge and 1 = MPa scale. The alternative scale codes are 2 (psi) and 3 (bar), and F selects a square gauge instead of round. With no gauge letter at all, a GFR300 carries the embedded square gauge as its default arrangement.
Authorized Export Seller
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 GFR300C08C1
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.