Airtac GFR Filter Regulator GFR300C15MC1K
The AirTAC Airtac GFR Filter Regulator GFR300C15MC1K 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 GFR300C15MC1K
GFR300C15MC1K is an AirTAC G-series filter regulator in one body: filtration of water and particulate plus downstream pressure regulation. The 300 frame uses PT1/2 ports and the standard 40 um element suits general plant air. The M suffix specifies a manual drain emptied by hand, C1 fits the round external pressure gauge with an MPa scale, the bracket is included, and the K suffix adds a built-in reverse (check) valve.
This is a genuine AirTAC part for compressed air only: maximum working pressure 1.0 MPa (145 psi), operating temperature -5 to 70 C (non-freezing), with a polycarbonate (PC) bowl at 300 size. The standard regulator adjusts 0.05-0.9 MPa (7-130 psi) on this manual-drain build. The same function spans the 200/300/400/600 frames with 1/8 to 1 in ports, a choice of drains, a 5 um (W) element, square or round gauges, and optional check valves. Flow is published as curves rather than a single rating - we confirm datasheet figures on request.
Airtac GFR Filter Regulator GFR300C15MC1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15MC1K |
|---|---|
| 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 GFR300C15MC1K
| 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 GFR300C15MC1K Is Used
Directional-valve branch feed
Feeds a branch of directional control valves on a machine frame: the 40 um element cleans the supply, the regulator sets branch pressure on the MPa gauge, and the built-in check valve meets the one-way-flow requirement of the drawing.
Clamping fixture supply
Powers pneumatic clamps on a machining fixture: shop air is filtered and brought to the clamp pressure set on the regulator, with the round MPa gauge as the reference at the set-up station.
Workshop air-tool drop
A maintenance-shop drop feeding impact wrenches and ratchets: the unit filters and regulates the supply, the manual drain is emptied at shift end, and the check valve supports the one-way branch layout.
Is the Airtac GFR Filter Regulator GFR300C15MC1K the Right Unit?
Choices to weigh: 300 with PT1/2 is the mid-size step - step up to 400 or 600 for larger lines. Manual drain (M) widens the regulation range down to 0.05 MPa (7 psi) versus 0.15 MPa (20 psi) on automatic and differential-drain builds, but the bowl is drained by hand. Element grade: 40 um standard, 5 um with W. The K check valve is built in on this code; omit K if the circuit does not call for one. Gauge is the C1 round MPa type, with psi and bar scales available under other codes. Thread is PT as standard, with G (BSPP) and NPT as options. Flow is published as curves, not a single rating - 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 GFR300C15MC1K FAQ
Flow for this series is published as curves, not as a single rated figure, so we do not quote a number here. Share your application details and we will confirm the flow curve and the full datasheet figures for GFR300C15MC1K on request.
The K suffix builds a reverse (check) valve into the GFR300 body. Specify it when your circuit calls for one-way-flow protection at the filter regulator. All other decode details - PT1/2 port, manual drain, 40 um element, round MPa gauge, included bracket - are unchanged.
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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 GFR300C15MC1K
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.