Airtac GFR Filter Regulator GFR300C15MJNW
The AirTAC Airtac GFR Filter Regulator GFR300C15MJNW 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 GFR300C15MJNW
GFR300C15MJNW is an AirTAC G-series filter regulator: filtration and pressure regulation combined in one body, with a drain bowl but no lubricator. This size 300, PT1/2 configuration is specified with the finer 5 um filter element (W), manual drain, and no gauge; the J code means no mounting bracket is supplied. On this manual-drain version the regulated outlet adjusts over 0.05-0.9 MPa (7-130 psi), max inlet pressure is 1.0 MPa (145 psi), and the medium is compressed air from -5 to 70 C. The bowl on size 300 units is polycarbonate (PC).
This is a genuine AirTAC part from the GFR family, which spans sizes 200, 300, 400 and 600 with your choice of drain type, filter grade, gauge and scale, thread (PT standard, with G and NPT as catalogue options) and bracket. AirTAC publishes flow for this series as curves rather than a single rating, so we confirm flow and datasheet figures on request before you order.
Airtac GFR Filter Regulator GFR300C15MJNW Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15MJNW |
|---|---|
| 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 GFR300C15MJNW
| 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 GFR300C15MJNW Is Used
Laboratory instrumentation air
Supplying instruments and small actuators on a lab bench, the 5 um element keeps fine particulate out of sensitive components while the regulator trims supply pressure to what each device needs.
High-cycle packaging actuation
Ahead of the fast-cycling cylinders on a carton former, it conditions the air and sets the working pressure for the cycle, with the 5 um element protecting small valve ports from dirt carried in the shop line.
Control panel valve island supply
Mounted at the inlet of a machine's valve island, it cleans and regulates the supply air to the whole island, with no gauge fitted so the panel keeps its existing pressure indication.
Is the Airtac GFR Filter Regulator GFR300C15MJNW the Right Unit?
Size and port step together across the GFR range: 200, 300, 400 and 600 with ports from 1/8 in to 1 in, so pick the step whose flow curve covers your consumption rather than matching port to pipe alone. This code fixes: the 5 um element for finer cleaning than the standard 40 um, manual drain, no gauge and no mounting bracket. If you would rather have the standard 40 um grade, a square gauge in MPa, psi or bar, automatic or differential-pressure draining, a check valve, G or NPT threads, or a bracket, those are available on other codes in this series. AirTAC publishes flow 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 GFR300C15MJNW FAQ
AirTAC publishes G-series flow as curves rather than a single rating, so we do not state a number here. Send us your application conditions - inlet pressure, air demand and allowable pressure drop - and we will confirm the flow and datasheet for this PT1/2, size 300 unit on request before you order.
The standard GFR element is 40 um, which suits general shop-air duty; the W code specifies the optional 5 micron element for finer cleaning where downstream components are tighter-tolerance or air quality matters more. Both grades are catalogue options across the GFR300 range, and the choice does not change the 0.05-0.9 MPa (7-130 psi) manual-drain adjust range.
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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 GFR300C15MJNW
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.