The AirTAC GFR30015LC2W AirTAC Filter Regulator 1/2 in 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 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 GFR30015LC2W is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This size 300 unit carries a PT1/2 (1/2 in) PT-threaded port, the W-coded 5 um filter element for finer filtration than the 40 um standard, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough. It is the low-pressure (L) type, and the C2 code means a round gauge scaled in psi is fitted so the set pressure is visible at the unit. The polycarbonate bowl lets you see the condensate level, and the mounting bracket is included.
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, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, standard or low-pressure regulation, psi, MPa or bar gauge scales, G or NPT thread options, and bracket or no-bracket mounting. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application.
| Model | GFR30015LC2W AirTAC Filter Regulator 1/2 in Low-Pressure |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, 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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 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. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding a packaging machine's directional-valve manifold with 5 um-filtered air at a steady, visible set pressure keeps spool sticking and seal wear from water and fine particulate down on a line that runs shift after shift.
On looms and spinning frames where delicate pneumatic jets and small cylinders sit downstream, a low-pressure-type regulator with a 5 um element protects the equipment while holding the gentle supply pressure those machines are built around.
Bench rigs and lab automation that cannot tolerate oil-free-air contamination by particles or pressure drift benefit from fine 5 um filtration, a psi-scaled gauge for repeatable setpoints, and automatic condensate removal via the differential-pressure drain.
Start with the port and size step: this unit is size 300 with a PT1/2 (1/2 in) PT-threaded port, and the GFR range steps up through sizes 400 and 600 if your line needs more capacity - size up against required flow, not just the existing pipe thread. Filtration here is the W-coded 5 um element; choose it over the 40 um standard when downstream valves or instruments need cleaner air. Drain type is a real choice in this family: differential-pressure (fitted here) needs no attention but relies on flow to purge, automatic drains on a timer-free basis, and manual drains give full control in low-flow duties. Gauge scale (psi here; MPa or bar are options) and PT versus G or NPT thread should match the rest of your panel. Flow for the GFR series is published as curves, not a single rating, so 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, not as a single rated number, so we do not quote a figure here. Tell us your application - port size, downstream demand and set pressure - and we will confirm the relevant datasheet flow-curve values for you before you order.
L marks the low-pressure regulator type, intended for applications where the set pressure sits at the lower end of the range rather than the standard type. The exact adjustment range for the low-pressure variant is not published in the general table, so ask us to confirm the range for your setpoint. Everything else in this code decodes as: size 300, PT1/2 port, PT thread, differential-pressure drain, 5 um filtration (W), round psi gauge (C2), bracket included, no reverse valve.
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.