The AirTAC AirTAC GFR30015MLC1TK 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 AirTAC GFR30015MLC1TK is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is ordered with a 1/2 in NPT port, a manual drain bowl in polycarbonate, the standard 40 um filter element, and the low-pressure regulator type. A round MPa gauge is fitted, a reverse/check valve is built in, and a mounting bracket is included. Maximum 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 spans sizes 200 to 600 with port options from 1/8 to 1 in, PT as standard and G or NPT to order, drain choices of differential-pressure, automatic or manual, a 5 um element option (code W), and gauge choices by style and scale. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | AirTAC GFR30015MLC1TK 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 | 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. |
| (blank) | Mounting bracket included. |
| (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. |
| 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Filtered, regulated air feeding air knives that strip rinse water from bottles ahead of the labeller, with the manual drain emptied during scheduled line checks and the MPa gauge giving a local setpoint readout.
Supplying the clamp cylinders on a machining-cell fixture, where clean air and a steady set pressure keep workholding repeatable across a shift; the built-in check valve guards the circuit against backflow.
Conditioning the supply to pneumatic actuators on lab sample-handling stations that run at low set pressures, where the 40 um element protects valves and the manual drain suits attended equipment rooms.
Choose the size and port against the air demand of the line: this unit is size 300 with a 1/2 in NPT port. Where a bowl is fitted, pick the drain: manual (as here, suited to attended maintenance rounds), automatic, or the differential-pressure default. Filter grade is 40 um standard; specify W for the 5 um element where finer particulate matters. Gauge style and scale (this unit: round, MPa), thread (PT standard; G and NPT are order options) and the bracket are all decodable choices. Note this is the low-pressure regulator type; its adjustment range is not published in our sheet, so ask us to confirm it against your set pressure before ordering. Flow is published as curves, not a single rating - send us your demand and we will confirm sizing from the datasheet.
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.
Flow for the GFR series is published as curves, not as a single rated figure, so we do not quote a number here. Send us your line demand and operating pressure and we will confirm sizing from the AirTAC datasheet on request.
This unit is ordered with a manual drain: an operator opens the bowl drain during maintenance rounds. Choose the automatic drain if the unit sits in an unattended line, or the differential-pressure default where draining on a pressure signal suits the installation. On this 300 size the bowl is polycarbonate.
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.