Airtac GFR Filter Regulator GFR300C15F1K
The AirTAC Airtac GFR Filter Regulator GFR300C15F1K 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 GFR300C15F1K
GFR300C15F1K is an AirTAC GFR300-series filter regulator: filtration and pressure regulation combined in one body with a single polycarbonate bowl, plus a reverse (check) valve. This 1/2 in PT configuration uses the standard 40 um filter element, a differential-pressure drain, and the embedded square pressure gauge on an MPa scale. The K option lets the unit hold downstream pressure if the upstream supply falls. It handles compressed air only.
This is a genuine AirTAC part, rated for up to 1.0 MPa (145 psi) inlet, -5 to 70 C non-freezing, with a standard regulation range of 0.15-0.9 MPa (20-130 psi). The GFR family spans 200, 300, 400 and 600 sizes in 1/8 to 1 in ports, with 40 um or 5 um elements, differential, automatic or manual drains, an optional round external gauge, and G or NPT thread options to order. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing on request.
Airtac GFR Filter Regulator GFR300C15F1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15F1K |
|---|---|
| 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 GFR300C15F1K
| 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 GFR300C15F1K Is Used
Clamping fixtures on machining line
Regulates and holds air pressure to hydraulic/pneumatic clamping fixtures on a transfer machining line, keeping parts secured through supply dips.
Multi-station assembly bench supply
Feeds a multi-station assembly bench with screwdrivers, cylinders and grippers, one regulated 1/2 in branch serving the whole module.
Trailer tipper and tail-lift air circuits
Prepares regulated air for vehicle-mounted tipping and tail-lift circuits that must hold position even if the supply line pressure falls.
Is the Airtac GFR Filter Regulator GFR300C15F1K the Right Unit?
Size 300 with a 1/2 in PT port serves medium-to-heavy circuits; step to 400/600 or down to 200 as your port and demand require. The 40 um element is the standard grade - choose W for 5 um only where finer filtration matters. The K code fits a reverse (check) valve; leave it off if downstream backflow is not a concern. The differential-pressure drain self-bleeds on a pressure difference; automatic (A) suits unattended wet lines and manual (M) fits dry air with the wider 0.05-0.9 MPa regulation range. The F1 suffix sets the embedded square gauge on MPa scale, with psi or bar available. G (BSPP) and NPT threads are order options and the bracket is included by default. Flow is published as curves, not a single rating, so 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 GFR300C15F1K FAQ
Flow for this series is published as curves, not as a single rated figure, so we do not state a number that is not in the datasheet. Share your inlet pressure and demand and we will confirm the correct size and provide the datasheet on request.
K specifies a reverse (check) valve fitted in the unit, so downstream pressure is held if the upstream supply drops - useful for clamping, holding and safety circuits. Removing the K gives the standard version; other options include W for a 5 um element, A or M drain types, and G or NPT threads.
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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 GFR300C15F1K
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.