The AirTAC GFR300-15JF2WG AirTAC Filter Regulator G1/2, 5 um 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 AirTAC GFR300-15JF2WG is a 300-size filter regulator that removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration is fitted with a G1/2 (BSPP) port, a 5 um filter element for finer filtration than the standard 40 um grade, and a differential-pressure drain that bleeds accumulated condensate automatically whenever the pressure differential across the element is high enough. The embedded square gauge reads in psi, the standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), and the polycarbonate bowl is rated for the family maximum inlet pressure of 1.0 MPa (145 psi) at operating temperatures of -5 to 70 C (non-freezing). No mounting bracket is fitted and no reverse/check valve is included.
This is a genuine AirTAC part from the G-series range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow figures for this series are published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR300-15JF2WG AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (G (BSPP) thread) |
| Filtering grade | 5 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 — 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. 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. |
|---|---|
| 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)). |
| (blank) | Standard 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. |
| 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. |
| 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" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding torque tools and pneumatic nutrunners at assembly stations, where the 5 um element protects tool motors from water and grit while the regulator holds a steady working pressure on the drop.
Supplying the air cylinders that drive case packers and carton sealers, with the differential-pressure drain keeping condensate out of the valve bank during long, continuous shifts.
Conditioning the shop-air feed into a machining centre's tool-change and clamping circuits, where the psi-scaled square gauge lets operators verify set pressure at the panel.
The GFR300-15JF2WG sits at the 300 size with a 1/2 inch port; step up or down through the 200/300/400/600 range to match the flow your line needs. Drain choice matters: the differential-pressure drain fitted here is maintenance-light and suits continuously running supply lines, while an automatic drain (code A) empties the bowl on a timer-like basis and a manual drain (code M) requires operator attention. The 5 um element fitted here (code W) is the finer option over the 40 um standard - choose it when downstream valves and cylinders need cleaner air. Gauge scale is psi on this unit; MPa and bar scales are alternatives. Thread is G (BSPP) as coded; PT is the series standard and NPT is available as an order option. A bracket can be added where panel or wall fixing is needed.
One honest note before you order: flow for this series is published as curves, not a single rated figure, so send us your application details and we will confirm the datasheet figures and sizing before you commit.
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 a rated flow number. Send us your line pressure, downstream demand and acceptable pressure drop, and we will confirm the datasheet flow figures for this 300-size, G1/2 unit on request before you order.
The W code in GFR300-15JF2WG selects the optional 5 um filter grade, which captures finer particles and carries less water past the element than the 40 um standard. It is the usual choice for air feeding control valves, air bearings and precision tools; the 40 um grade remains available on other GFR300 variants where coarser pre-filtration is sufficient.
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.