The AirTAC GFR30015MLF2G AirTAC Filter Regulator G1/2, 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 GFR30015MLF2G is a size-300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration carries a G1/2 (BSPP) port, the low-pressure regulator type for lines that run below standard working pressures, a manual drain on the polycarbonate bowl, a 40 um standard filter element, and an embedded square gauge reading in psi. A mounting bracket is included and no reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options including automatic or differential-pressure drains, a 5 um element (code W), alternative gauge scales, and PT or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR30015MLF2G AirTAC Filter Regulator G1/2, Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) 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 — square, psi 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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) |
Feeding air to clamps and light pneumatic presses on a machining cell, where the filtered supply protects valve spools and the low-pressure regulator holds a reduced setting for delicate clamping forces.
Conditioning air ahead of spray guns and finishing stations, where the 40 um element strips water and pipe scale that would otherwise blemish the finish and the regulator keeps gun pressure steady.
Supplying carton sealers, case packers and wrapping machines, where one body handles filtration and regulation at the machine drop and the square psi gauge gives operators a local pressure check.
Start with the port step: size 300 with a 1/2 in port suits lines where your existing pipework is 1/2 in; step up to size 400 or 600, or down to 200, to match the flow path of the circuit - and ask us to confirm the flow curve against your demand before ordering, since AirTAC publishes flow as curves, not a single rating. Choose the drain to suit access: this unit has a manual drain, which needs someone to bleed the bowl periodically; automatic or differential-pressure drains suit unattended installations. The 40 um element is the standard grade; specify 5 um (code W) where finer particulate removal is needed downstream.
This configuration uses the low-pressure regulator type - confirm its adjustment range against your setpoint on request, as the published range applies to the standard type. The embedded square gauge here reads psi; MPa and bar scales are available. Thread: PT is the catalogue standard and G (BSPP) and NPT are order options - this unit is the G version. A bracket is included; GR-family panel mounting does not apply to GFR.
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 number, so we do not quote a l/min or SCFM figure here. Tell us your line pressure and the demand of the equipment you are feeding, and we will confirm the flow curve and correct size from the datasheet on request before you order.
The M in GFR30015MLF2G specifies a manual drain: condensate collected in the polycarbonate bowl is released by operating the drain by hand, which suits attended installations with a routine check. If the unit will sit unattended, ask about the same size with an automatic (code A) or differential-pressure (blank) drain instead.
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.