The AirTAC GFR30015MLJF1WTK AirTAC Filter Regulator NPT1/2 Low-Pressure 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 GFR30015MLJF1WTK is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in one 300-size body with a 1/2 in NPT port. This configuration carries the fine 5 um filter element (code W), a manual drain bowl in polycarbonate, a low-pressure regulator type, an embedded square pressure gauge scaled in MPa, and a reverse/check valve. No mounting bracket is fitted, so plan your installation fixing accordingly. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600, with port options from 1/8 in to 1 in, PT as the standard thread and G (BSPP) or NPT as order options, a choice of differential-pressure, automatic or manual drain, standard or 5 um (W) filtration, gauge scale choices, and an optional reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR30015MLJF1WTK AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| 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 — square, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
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). |
| F | Gauge shape: Square. 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. |
| K | Reverse-flow (reflux) valve fitted. |
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) |
Feeding filtered, regulated air to a bench-mounted pneumatic press or clamp fixture, where the 5 um element protects the valve and cylinder seals and the low-pressure regulator holds a gentle working pressure at the fixture.
Conditioning the air supply to carton-sealing and case-erector cylinders on a packaging conveyor, with the manual drain bowl emptied during shift checks and the square MPa gauge giving the operator a clear line-pressure reading.
Installed on a drop leg off the main header at an individual machine cell, combining water and particle removal with regulation in one body, and the reverse/check valve holding downstream pressure if the upstream supply is interrupted.
Choose the GFR size by the port step and the flow your line needs: this unit is size 300 with a 1/2 in NPT port, one step up from the 3/8 in port of the same size family. Because published flow appears only as curves, not a single rating, ask us to confirm sizing against your air demand before ordering. This code fixes several real choices: the 5 um element (W) instead of the 40 um standard, a manual drain instead of automatic or differential-pressure, the low-pressure regulator type, a square gauge scaled in MPa, and a reverse/check valve. If you need psi or bar gauge scales, an external round gauge, a different drain, the standard regulator type, or a mounting bracket, those are available in the family - check the matching code. PT is the standard thread; G (BSPP) and NPT are catalogue options to order, which is what this NPT unit is.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow 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 number, so we do not quote a figure here. Tell us your line pressure and the air demand of the equipment you are feeding, and we will confirm the sizing against the datasheet curves on request before you order.
The M in the code selects the manual drain bowl: collected water is released by opening the drain by hand, so it suits installations that are checked on a regular schedule. If the unit will be left unattended, the automatic (A) or differential-pressure drain versions of the same GFR300 family are the usual alternative.
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.