The AirTAC GFR300C15LF1WT AirTAC Filter Regulator NPT1/2, 5 um 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 See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR300C15LF1WT is a size 300 filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 1/2 in NPT port, a 5 um filter element (the W grade, finer than the 40 um standard), a differential-pressure drain that bleeds collected condensate automatically when the pressure differential rises, and the low-pressure (L) regulator type for duties that call for lower set points. A square pressure gauge scaled in MPa is fitted, and the unit includes a mounting bracket.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in and PT, G and NPT thread options. Max working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing). Rated flow for this series is published as curves rather than a single figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C15LF1WT AirTAC Filter Regulator NPT1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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. |
|---|---|
| C1 | Port size See datasheet. This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Feeding clean, regulated air to the cylinders and actuators on a cartoning or case-packing line, where the 5 um element protects directional valves from fine particulate and the low-pressure type holds a gentle set point for delicate clamp motions.
Supplying a workholding fixture or light-duty pneumatic press cell, where the regulator sets a repeatable clamping pressure, the square MPa gauge gives the operator a visible set point, and the differential-pressure drain keeps condensate out of the circuit.
Regulating the air feed to blow-off nozzles and cleaning jets along a food or beverage conveyor, where filtered, moisture-reduced air at a low set point prevents water spotting on product or packaging surfaces.
Choose the GFR size by the port and flow step your line needs: this unit is size 300 with a 1/2 in NPT port; smaller 200 and larger 400/600 sizes step port and capacity up or down. The 5 um element (code W) suits points of use that see finer contamination than the 40 um standard element handles. The differential-pressure drain fitted here needs no operator attention; automatic (A) and manual (M) drain variants exist if your duty or maintenance routine calls for them. The square gauge fitted reads in MPa; psi and bar scales and an external round gauge are catalogue options. Thread is NPT on this code - PT is the AirTAC standard and G (BSPP) is also available to order - and the bracket is included. Because flow for this series is published as curves rather than a single rating, send us your application details and we will confirm sizing against the datasheet before you order.
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 rather than a single rated figure, so we do not quote one number. Tell us your line pressure, set point and the equipment you are feeding, and we will confirm the flow from the datasheet and check the sizing against your application before you order.
The W in the code GFR300C15LF1WT selects the optional 5 um filter grade, which captures finer particulate than the 40 um standard element - a good choice upstream of sensitive valves and instruments. The L selects the low-pressure regulator type, intended for duties with lower set points than the standard version; the exact set-point range for the low-pressure type is not published in our sheet, so ask us to confirm it on request.
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.