The AirTAC GFR30015MLJC1WT AirTAC Filter Regulator 1/2 in NPT is a genuine G-series filter regulator: water separation, 5 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 GFR30015MLJC1WT is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and holds downstream pressure at a set point, in one body. This unit is built on the 300 size with a 1/2 in NPT port, carries the 5 um filter element (code W) instead of the standard 40 um, drains manually (code M), and is the low-pressure regulator type (code L). The bowl on this 300-size unit is polycarbonate (PC), the fitted external round pressure gauge reads in MPa, no mounting bracket is included (code J), and no reverse/check valve is fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options for drain type, 40 um or 5 um filtration, gauge style and scale, PT, G or NPT thread, and bracket. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request - just ask.
| Model | GFR30015MLJC1WT AirTAC Filter Regulator 1/2 in NPT |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 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. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
On a carton-forming station, this unit filters water and particulate out of the supply and holds a steady set point to the directional valves and cylinders. The 5 um element suits sensitive valve seats, and the manual drain is purged during the shift-change check.
A lab air ring main feeding analytical benchtop equipment benefits from filtered, regulated air at the point of use. The low-pressure regulator type fits circuits that are held at reduced setpoints, and the MPa gauge gives a direct local reading.
Spray guns are sensitive to water and dirt in the air line. Mounted at the booth drop, this filter regulator cleans the supply, holds the gun pressure steady, and its manual drain is opened at the start of each shift to clear collected condensate.
Size and port: the 200/300/400/600 step moves up in port size and flow capacity; this 300-size unit takes a 1/2 in NPT thread (PT is the standard thread; G and NPT are order options). Drain: manual (M) releases condensate only when opened, versus automatic or differential-pressure draining in the same family. Filtration: the 5 um (W) element gives finer protection than the 40 um standard element. Gauge: the fitted external round gauge reads in MPa; an embedded square gauge and psi or bar scales are the alternatives. This is the low-pressure (L) regulator type - its exact adjustment range is not published, so confirm it with us - and it is supplied without a mounting bracket (J). Because flow is published as curves, not a single rating, 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 this family as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the datasheet flow curve for the 300 size at 1/2 in NPT and check it against your required flow before you order.
The M code fits a manual drain: condensate collected in the polycarbonate bowl is released only when the drain is opened, typically during a scheduled check. It suits supervised installations with a maintenance routine. If you need unattended condensate removal, the same GFR300 family is available with automatic or differential-pressure drains.
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.