The AirTAC GFR30015MLJC1T AirTAC Filter Regulator NPT1/2 Low-Pressure 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 PT1/2" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR30015MLJC1T is an AirTAC GFR300 filter regulator: a single body that removes water and particulate from compressed air and then regulates downstream pressure. This configuration is sized 300 with a 1/2 in NPT port, carries a 40 um filter element, and uses a manual drain, so condensate is emptied by opening the drain at the bottom of the bowl rather than venting automatically. It is the low-pressure type, and the code C1 specifies an external round pressure gauge with an MPa scale. The J code means no mounting bracket is included, and the trailing T specifies NPT thread.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in, thread choices of PT (standard), G and NPT, drain choices, 40 um or 5 um filtration, gauge options and bracket options. Flow is published as curves rather than a single rating, so we confirm the exact flow and datasheet figures for your application on request.
| Model | GFR30015MLJC1T AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, MPa 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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.
| GFR300 | G-series filter regulator, 300 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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.
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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
On a bench or C-frame pneumatic press, this unit filters water and swarf from the shop air line and holds a steady reduced pressure to the press cylinder, with the round MPa gauge giving the operator a clear setting reference.
Fitted at the air inlet of a cartoning or wrapping machine, it cleans the supply and regulates pressure to the sealing and clamp actuators, with the manual drain emptied during scheduled changeover stops.
Mounted ahead of a valve manifold and instrument panel on a process skid, it delivers filtered, regulated air at low pressure to pilot circuits and positioners, with the MPa gauge allowing direct verification of the set point.
Choose the size and port step against the air demand of the circuit: this unit is size 300 with a 1/2 in NPT port, and the family steps through sizes 200, 300, 400 and 600 with larger ports for higher demand. Drain type is a real choice: manual (as here) needs an operator to drain the bowl, automatic drains on its own, and differential-pressure drains when the element loads up. Filtration is 40 um standard or 5 um with the W code. Gauge options are the embedded square gauge or an external round gauge, with MPa, psi or bar scales; this unit has a round MPa gauge. Thread is PT as standard with G and NPT as order options, and a bracket can be added if the J (no bracket) code does not suit your mounting. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
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 publishes flow for the GFR series as curves, not as a single rated figure, so we do not quote a flow number. Tell us your line pressure, set pressure and air demand and we will confirm the flow from the datasheet curves for this exact model on request.
The L code makes this a low-pressure regulator variant of the GFR300, intended where the downstream set pressure is below the standard type's range; the exact adjustment range for the low-pressure type is not published in the material we hold, so we confirm it on request. The M code means the drain is manual: condensate collected in the PC bowl is emptied by opening the drain by hand rather than venting automatically.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
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.