The AirTAC GFR300-15JF2WK AirTAC Filter Regulator PT1/2, 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 GFR300-15JF2WK is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single compact body. This 300-size unit is threaded PT1/2 (1/2 in), carries the finer 5 um filter element, drains condensate by differential pressure, and has an embedded square pressure gauge reading in psi. A reverse/check valve is fitted, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part from the GFR series, available in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi), the regulation range for this differential-pressure drain configuration is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C (non-freezing). The bowl on this 300 size is PC (polycarbonate). Flow is published as curves rather than a single rating, so ask us to confirm datasheet figures for your application on request.
| Model | GFR300-15JF2WK AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| 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 | 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 | 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". |
| (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. |
| (blank) | PT 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) |
Filtered and regulated air feeds clamping cylinders and vise actuators on a machining centre, with the 5 um element protecting precision valves from particulate and the check valve holding the set pressure if the supply dips.
On a carton packaging line, this unit conditions the air feeding diverter gates, pushers and sealing cylinders, keeping water and debris out of the actuators while holding a steady working pressure for consistent cycle behaviour.
Test benches and analytical instruments that run on plant air need clean, stable pressure. The 5 um element and regulated output suit sensitive pneumatic instruments, with the psi-scale gauge giving a direct reading at the rig.
Choose the size and port against the air demand of the line: this 300-size unit is ported PT1/2 (1/2 in), and larger sizes carry larger ports and more flow. Filter grade is a real choice: 40 um is the standard element, while the W code on this model selects the finer 5 um element for downstream equipment that needs cleaner air. Drain type is also selectable: differential-pressure (as fitted here), automatic, or manual. Gauge scale can be MPa, psi (this unit) or bar, and an external round gauge is available in place of the embedded square gauge. Thread is PT as standard with G (BSPP) and NPT as order options, and a mounting bracket can be added if required. Flow is published as curves, not a single rating, so please ask us to confirm sizing against your application before ordering.
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 GFR300 series as curves rather than a single rated figure, so we do not quote a number here. Tell us your line pressure, downstream demand and allowable pressure drop, and we will confirm the flow and datasheet figures for this exact model on request.
W selects the optional 5 um filter element instead of the 40 um standard element. The 5 um grade suits downstream equipment such as precision valves, spray guns and instrument air that needs cleaner air, while 40 um is the usual choice for general plant air. This unit also carries a reverse/check valve (code K) and a square gauge reading in psi.
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.