The AirTAC GFR30015F2K AirTAC Filter Regulator PT1/2, Square Psi Gauge 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 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 GFR30015F2K is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries PT1/2 ports, a 40 um standard filter element, a differential-pressure drain, an embedded square gauge reading in psi, a built-in reverse/check valve, and the mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts from 0.15-0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The bowl on this 300 size is polycarbonate (PC); only the 600 size uses an aluminium alloy bowl.
This is a genuine AirTAC part. The G-series filter regulator range spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, drain choices (differential-pressure, automatic or manual), an optional 5 um filter element (code W), gauge scale options, G or NPT thread variants, and bracket options. AirTAC publishes flow as curves rather than a single rated figure, so ask us to confirm flow or any datasheet figure for your application on request.
| Model | GFR30015F2K AirTAC Filter Regulator PT1/2, Square Psi Gauge |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (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 — 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. |
| (blank) | Mounting bracket included. |
| (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. |
| (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. |
| 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" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Point-of-use conditioning at assembly stations: the filter stage strips water and swarf carryover from the shop air main, while the regulator holds a steady setting for air drivers, clamps and fixtures at each drop, and the check valve holds the downstream setting if the main dips.
Feeding the pneumatic circuits of a machining centre - tool clamping, chip-blow nozzles and air bearings - with clean, regulated air. The 40 um element protects valves and cylinders from particulate, and the psi square gauge lets setters read the line at a glance.
Conditioning the air feeding carton-sealing and case-erecting cylinders on a packaging conveyor: filtered, pressure-regulated supply keeps flap-fold and taping cylinders cycling consistently through a shift, with the differential-pressure drain bleeding accumulated condensate during operation.
Size 300 with PT1/2 ports sits in the middle of the GFR range (200/300/400/600); step up or down a size when your line's flow demand or existing port size calls for it. The real, decodable choices on this family are: drain type (differential-pressure standard here, automatic, or manual - note the manual-drain version widens the regulation range down to 0.05 MPa), filter grade (40 um standard, 5 um with code W), gauge scale (MPa, psi or bar) and gauge style, thread (PT is standard; G and NPT are orderable options), bracket, and the reverse/check valve shown by the K in this code. Flow is published as curves, not a single rating, so 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 as curves rather than a single rated figure, so we do not quote one number here. Send us your required flow and working pressure and we will confirm from the datasheet whether this 300-size, PT1/2 unit is correctly sized for your application before you order.
The K code means a reverse (check) valve is fitted: it holds downstream pressure if the upstream supply is interrupted. This unit also carries an embedded square gauge reading in psi; an external round gauge and MPa or bar scales are catalogue options you can order.
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.