Airtac GFR Filter Regulator GFR300C15MJN
The AirTAC Airtac GFR Filter Regulator GFR300C15MJN 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 GFR300C15MJN
GFR300C15MJN 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 runs the standard 40 um filter element, drains by hand through the manual drain, and is ordered without a gauge (N); 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 GFR300C15MJN Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15MJN |
|---|---|
| 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 GFR300C15MJN
| 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 GFR300C15MJN Is Used
Conveyor diverting cylinders
Feeding the air cylinders that divert cartons on a distribution conveyor, it strips water and dirt from the shop supply and lets maintenance set one stable working pressure for the whole station.
Assembly bench air drop
On a plant-floor assembly bench, it conditions the drop before the quick couplings and air tools, with accumulated water drained by hand at the start of a shift and bench pressure held steady as tools cycle.
Maintenance shop air service
Used as the service unit on a maintenance shop hose reel, it gives technicians clean, regulated air for impact tools and test rigs, with no gauge fitted where the shop already reads pressure at the panel.
Is the Airtac GFR Filter Regulator GFR300C15MJN the Right Unit?
The GFR range steps through sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, so pick the size whose flow curve covers your consumption rather than matching port to pipe alone. This code fixes the practical choices: the standard 40 um element for general shop-air duty, manual drain for simple service, no gauge, and no mounting bracket. Gauge-fitted variants with embedded square (MPa, psi or bar) or external round gauges, the finer 5 um element, automatic or differential-pressure drains, G or NPT threads, and brackets are all 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 GFR300C15MJN FAQ
AirTAC publishes flow for this series as curves rather than a single rated figure, so we do not quote one number here. Tell us your inlet pressure, the air your station consumes and the pressure drop you can accept, and we will confirm the flow and datasheet for this PT1/2, size 300 unit on request before ordering.
The N in GFR300C15MJN means the unit is supplied without a gauge. Regulators in this series are also available with the embedded square gauge in MPa, psi or bar scales, or with an external round gauge - simply order the corresponding code. The adjustment range on this manual-drain version is 0.05-0.9 MPa (7-130 psi).
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Request a Quote for Airtac GFR Filter Regulator GFR300C15MJN
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.