Airtac GFR Filter Regulator GFR300C15MJF1
The AirTAC Airtac GFR Filter Regulator GFR300C15MJF1 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 GFR300C15MJF1
The GFR300C15MJF1 is an AirTAC GFR filter regulator: water and particulate removal plus downstream pressure regulation in a single body. This PT1/2 configuration uses a manual drain (the bowl is bled by hand), the standard 40 um filter element for general plant air, and the embedded square gauge with an MPa scale. No reverse valve is fitted and no mounting bracket is included under the J code.
This is a genuine AirTAC part in the 300 size of the G series, which spans sizes 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 GFR300C15MJF1 Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15MJF1 |
|---|---|
| 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 GFR300C15MJF1
| 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 GFR300C15MJF1 Is Used
Press-shop pneumatic clamps
Conditioning plant air feeding clamping cylinders on a fabrication press line, giving the clamp circuit clean air and one steady set pressure.
Food-plant conveyor stops
Regulating the supply to stopper and reject cylinders along a food-plant conveyor, where the PT1/2 port matches the main branch take-off.
Panel-mounted valve station
Serving as the conditioning stage ahead of a pneumatic valve manifold on an automation panel, with the MPa gauge read at the panel face.
Is the Airtac GFR Filter Regulator GFR300C15MJF1 the Right Unit?
Match the size to your demand: GFR steps through 200, 300, 400 and 600, each with a larger port and more flow; this unit is PT1/2. Drain is manual here (regulating 0.05-0.9 MPa, 7-130 psi), with automatic and differential-pressure versions available in the series. Filter grade is the 40 um standard; specify the W option if you need 5 um. The gauge is the embedded square type with MPa scale; a round external gauge and psi/bar scales are alternatives. Thread is PT as standard, with G and NPT orderable, and a mounting bracket is optional (not included under J). 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 GFR300C15MJF1 FAQ
AirTAC publishes G-series filter-regulator flow as characteristic curves rather than a single rated figure, so no one number applies. Tell us your line demand and we will confirm flow and sizing from the datasheet on request.
The 40 um element in this code is the standard grade and suits general plant air feeding cylinders and valves. If the circuit carries more sensitive equipment, the W option in the same series gives a 5 um element.
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Covers non-human-caused product damage.
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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 GFR300C15MJF1
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.