Airtac GFR Filter Regulator GFR300C15MJF1K
The AirTAC Airtac GFR Filter Regulator GFR300C15MJF1K 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 GFR300C15MJF1K
The GFR300C15MJF1K is an AirTAC GFR filter regulator with a reverse (check) valve fitted: one body that filters water and particulate from compressed air and regulates downstream pressure, while the check valve helps hold downstream pressure if the supply fails. This PT1/2 configuration has a manual drain (bled by hand), the standard 40 um filter element, and the embedded square gauge with an MPa scale. No mounting bracket is included under the J code.
This is a genuine AirTAC part in the 300 size of the G series, which runs from 200 to 600 with 1/8 in to 1 in ports in PT (standard), G or NPT thread. AirTAC publishes filter-regulator flow as curves rather than a single rated figure, so ask us and we will confirm flow and datasheet figures on request. Max inlet pressure is 1.0 MPa (145 psi), the manual-drain regulator adjusts 0.05-0.9 MPa (7-130 psi), the polycarbonate bowl suits sizes 200-400, and operating temperature is -5 to 70 C.
Airtac GFR Filter Regulator GFR300C15MJF1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15MJF1K |
|---|---|
| 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 GFR300C15MJF1K
| 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 GFR300C15MJF1K Is Used
Pneumatic shut-off valve actuator
Supplying a quarter-turn actuator on a process line, where the check valve holds actuator pressure if upstream air is lost mid-stroke.
Assembly-press hold-down circuit
Conditioning air to hold-down clamps on an assembly press, keeping the set pressure steady through the press cycle.
Trailer air-prep point
Feeding pneumatic tools and test gauges at a truck-maintenance bay, with the PT1/2 port matching the shop drop lines.
Is the Airtac GFR Filter Regulator GFR300C15MJF1K the Right Unit?
Size by demand: GFR comes in 200, 300, 400 and 600 with growing ports and flow; this unit is PT1/2. Drain here is manual (regulating 0.05-0.9 MPa, 7-130 psi); automatic and differential-pressure drains are series options. Filter grade is the 40 um standard, with a 5 um W option available. The gauge is the embedded square type with MPa scale; round gauges and psi/bar scales are alternatives. Thread is PT as standard with G and NPT orderable, a bracket is optional (not included under J), and the K code adds the reverse valve this unit carries. Flow is published as curves rather than a single rating, so 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 GFR300C15MJF1K FAQ
There is no single rated-flow number to quote: AirTAC publishes filter-regulator flow as characteristic curves. Share your line demand and we will confirm the flow and sizing from the datasheet on request.
K means a reverse (check) valve is fitted: if supply pressure fails, the valve helps hold downstream pressure in the circuit. The same model without K is available if you do not need this.
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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 GFR300C15MJF1K
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.