Airtac GFR Filter Regulator GFR300C15AF1WK
The AirTAC GFR Filter Regulator GFR300C15AF1WK 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 GFR300C15AF1WK
The GFR300C15AF1WK is a genuine AirTAC G-series filter regulator: filtration and pressure regulation combined in one body, with a drain bowl and no lubricator. This configuration is a 300-size unit on a 1/2" PT port, with automatic drain, a 5 um filter element, the embedded square gauge with MPa scale, a reverse (check) valve fitted, and a mounting bracket included. It removes water and particulate from compressed air, drains condensate on its own, and holds the downstream pressure you set.
As a genuine AirTAC part it carries the catalogue specification for the series: maximum inlet pressure 1.0 MPa (145 psi), regulation range 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure drain, operating temperature -5 to 70 C (non-freezing), medium compressed air only, and a polycarbonate bowl at size 300. The GFR family is available in 200, 300, 400 and 600 sizes with 40 um or 5 um elements, differential, automatic or manual drains, MPa/psi/bar gauge scales, and G (BSPP) or NPT thread options. AirTAC publishes flow as curves rather than a single rated figure, so we confirm flow and datasheet figures on request before you order.
Airtac GFR Filter Regulator GFR300C15AF1WK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15AF1WK |
|---|---|
| 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 GFR300C15AF1WK
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| C1 | 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-C1 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR300C15AF1WK Is Used
CNC machining center air supply
Feeds filtered, regulated air to the tool-change cylinders and clamping circuits of a machining center, with the 5 um element guarding spool valves on a 1/2" shop-air drop.
Carton-sealer packaging line
Supplies clean, regulated air to the folding and taping cylinders on a carton-sealing line, with automatic drain clearing condensate through multi-shift running.
Pneumatic clamping fixtures
Holds a steady clamping pressure on fixture cylinders in a machining cell; the fitted check valve keeps clamps holding if upstream pressure dips.
Is the Airtac GFR Filter Regulator GFR300C15AF1WK the Right Unit?
Size to the job: 200 suits 1/8"-1/4" lines, 300 covers 3/8"-1/2", and 400/600 step up for larger ports and higher demand - this 300 model sits on a 1/2" PT port. This unit has the 5 um element for finer protection than the 40 um standard, automatic drain so condensate leaves without operator attention, and the square MPa gauge embedded in the body. The reverse (check) valve holds downstream pressure if upstream supply drops. G (BSPP) and NPT threads are orderable options instead of the PT standard. AirTAC publishes flow as curves, not a single rating - ask us to confirm sizing against your application 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 GFR300C15AF1WK FAQ
AirTAC publishes G-series flow as performance curves rather than a single rated figure, so there is no one number to quote. Tell us your line pressure and downstream demand and we will confirm the datasheet flow for this 300-size, 1/2" unit on request.
G-series filter regulators offer three drain types: differential-pressure (default), automatic (code A, as on this unit) and manual (code M). Automatic drain ejects condensate without operator attention. Note the regulator range: 0.15-0.9 MPa (20-130 psi) with automatic or differential drain, versus 0.05-0.9 MPa (7-130 psi) with manual drain.
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 GFR300C15AF1WK
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.