Airtac GFR Filter Regulator GFR300C15MF1WK
The AirTAC Airtac GFR Filter Regulator GFR300C15MF1WK 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 GFR300C15MF1WK
The GFR300C15MF1WK is an AirTAC G-series filter regulator that removes water and particulate from compressed air and sets downstream pressure in a single body. This configuration is sized 300 with PT1/2 ports, uses a 5 um filter element for finer air than the standard 40 um grade, drains the bowl by hand through the manual drain, and carries an embedded square gauge with an MPa scale so you can read the regulated setting at a glance. The fitted reverse (check) valve helps hold downstream pressure if the upstream side is vented. Maximum inlet pressure is 1.0 MPa (145 psi); regulation range with the manual drain is 0.05-0.9 MPa (7-130 psi); working temperature is -5 to 70 C, non-freezing. The 300-size bowl is polycarbonate (PC).
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with ports from 1/8 in. to 1 in., and options include differential-pressure, automatic or manual drains, 40 um or 5 um elements, embedded square or external round gauges in MPa, psi or bar scales, PT, G (BSPP) or NPT threads, a bracket and the reverse valve. Flow is published as curves rather than a single rating, so we confirm flow and datasheet figures for your application on request.
Airtac GFR Filter Regulator GFR300C15MF1WK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15MF1WK |
|---|---|
| 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 GFR300C15MF1WK
| 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 GFR300C15MF1WK Is Used
Pneumatic clamping on CNC machining centres
Feeds and regulates the air to power clamps and fixtures on a machining centre. The 5 um element protects clamp valves, the MPa gauge lets setters verify clamp pressure, and the reverse valve helps the circuit hold while upstream air is isolated.
Air-assisted spray guns in a furniture finishing booth
Supplies regulated air to spray guns in a wood-finishing line. The 5 um element reduces carry-over of water and particulate to the gun, and the manual drain is emptied at shift checks in a booth that is visited constantly.
Pick-and-place gripper cells on packaging machines
Feeds gripper and ejector circuits on a carton packaging machine, where the check valve keeps downstream actuators from venting the moment the upstream header is dumped for maintenance.
Is the Airtac GFR Filter Regulator GFR300C15MF1WK the Right Unit?
Choose manual drain where moisture loading is light or the unit is easily reached for routine draining; pick the automatic drain instead if the line runs unattended. The 5 um element suits points of use feeding cylinders, valves or devices that want cleaner air than the standard 40 um grade. The square MPa gauge suits metric-read plants; psi and bar scales are orderable. PT is the standard thread - order G (BSPP) or NPT variants when your piping needs them - and the bracket can be added for panel mounting. The 300 size with 1/2 in. ports is one step in the range; if your flow demand is near the top of this size, step up to 400/600. Because flow is published as curves rather than 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 GFR300C15MF1WK FAQ
AirTAC publishes flow for this series as curves, not as a single rated figure, so there is no one number we can quote honestly. Tell us your inlet pressure, set pressure and expected consumption and we will confirm the flow from the datasheet curves for your application on request.
K means a reverse (check) valve is fitted, so downstream pressure is held if the upstream side is vented - useful for clamps or circuits that must not release. The M means the drain is manual: condensate is drained by hand, which suits attended lines, while regulation with the manual drain is 0.05-0.9 MPa (7-130 psi).
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR300C15MF1WK
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.