The AirTAC GFR30015AC2WGK AirTAC Filter Regulator G1/2 5um Auto Drain 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 automatic 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 GFR30015AC2WGK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This size 300 configuration has a G1/2 (BSPP) port, a 5 um filter element for finer filtration than the standard 40 um grade, an automatic drain that expels collected condensate without manual attention, a round pressure gauge reading in psi, and a built-in reverse (check) valve to hold downstream pressure if the supply drops. The polycarbonate bowl suits this size, and the mounting bracket is included.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of manual, automatic or differential-pressure drains, 40 um or 5 um elements, and gauge or no-gauge options. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR30015AC2WGK AirTAC Filter Regulator G1/2 5um Auto Drain |
|---|---|
| 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, psi 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. 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". |
| A | Drain: Automatic 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). |
| 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. |
| G | G (BSPP) 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" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Clean, regulated air to the clamping cylinders and pneumatic vise on a machining centre. The 5 um element protects the clamp valves from particulate and the regulator holds a steady clamp pressure shift after shift, while the check valve keeps the clamp from venting if the supply dips.
Feeding the air cylinders that divert, stop and gate bottles between conveyor sections. The automatic drain handles condensate on a line that runs unattended, and the round psi gauge lets maintenance set and verify the actuator pressure at a glance.
Point-of-use air preparation ahead of spray guns in a finishing booth. The 5 um grade strips particles that would otherwise show up as defects in the finish, and the regulator sets the atomising pressure the gun manufacturer specifies; no lubricator is needed on this line.
Step up or down through the GFR sizes (200/300/400/600) and their port sizes (1/8 in to 1 in) to match the pipe run and the air demand of the circuit; the larger the size, the larger the port and the flow path. Choose the drain to suit access: automatic (as on this unit) where the unit is hard to reach, manual where an operator drains it routinely, or the differential-pressure default. Pick the 5 um element (code W) when downstream valves, cylinders or instruments need finer air than the 40 um standard grade. Gauge scale can be ordered in MPa, psi or bar, and the thread in PT (standard), G or NPT. A bracket can be included or omitted (code J).
One honest note on sizing: AirTAC publishes flow for this series as curves, not as a single rated figure, so we do not quote a flow number here. Send us your application details and we will confirm the right size against the datasheet curves before you order.
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.
AirTAC publishes flow for the GFR series as performance curves rather than a single rated figure, so we do not quote a flow number, Cv or SCFM value here. Tell us your line pressure, downstream demand and port size, and we will confirm the sizing against the datasheet curves for this unit before you order.
This unit carries drain code A, so collected condensate is expelled automatically from the polycarbonate bowl without anyone opening it. That suits units mounted high, inside panels or on lines that run unattended. If your maintenance team prefers to drain bowls during routine rounds, the manual-drain (M) or differential-pressure (blank) versions of the same size are available to order 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.