Airtac GFR Filter Regulator GFR300C15MJF1WK
The AirTAC Airtac GFR Filter Regulator GFR300C15MJF1WK 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 GFR300C15MJF1WK
GFR300C15MJF1WK 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 configuration is ported PT1/2 and is built for finer air cleaning with the 5 um filter element, manual drain, a square pressure gauge with MPa scale, and a reverse (check) valve; 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 GFR300C15MJF1WK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR300C15MJF1WK |
|---|---|
| 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 GFR300C15MJF1WK
| 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 GFR300C15MJF1WK Is Used
CNC fixture clamping circuit
Mounted at the drop feeding a machining centre's pneumatic clamps, it cleans the shop air with the 5 um element and holds the clamp pressure the setter dials in on the MPa gauge, with the check valve blocking reverse flow through the unit.
Directional valve manifold supply
Installed ahead of the valve manifold on a packaging machine, it removes water and particulate before they reach the spool valves and lets the line set the working pressure the actuators were sized for.
Paint spray booth air prep
At the booth drop feeding spray guns, the 5 um element knocks out finer particles that would otherwise show up as surface defects, while the regulator sets the gun supply pressure the finish calls for.
Is the Airtac GFR Filter Regulator GFR300C15MJF1WK the Right Unit?
Size and port step up together across the GFR range: 200, 300, 400 and 600 with ports from 1/8 in to 1 in, so choose the step whose flow curve covers your consumption rather than matching port to pipe size alone. This unit already has the key choices fixed: 5 um element for finer cleaning than the standard 40 um, manual drain (which is why the adjust range starts at 0.05 MPa), a square gauge reading MPa, and a built-in check valve. If you would prefer automatic or differential-pressure draining, a psi or bar scale, G or NPT threads, or a mounting bracket, the other codes in this series carry those options. 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 GFR300C15MJF1WK FAQ
AirTAC publishes G-series flow as curves, not as a single rated number, so we do not quote a figure here. Send us your line pressure, downstream 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.
K fits a reverse (check) valve in the unit, which blocks reverse flow through the body. The rest of the code reads: 300 = size, 15 = PT1/2 port, M = manual drain, J = no bracket, F1 = square gauge with MPa scale, W = 5 um element. If you do not need the check valve, the same unit is available without the K.
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Standard models are processed and dispatched in 3-5 business days.
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Request a Quote for Airtac GFR Filter Regulator GFR300C15MJF1WK
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.