The AirTAC GFR30015C3TK AirTAC Filter Regulator NPT1/2 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 AirTAC GFR30015C3TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This size 300 unit is fitted with 1/2 in NPT ports, a 40 um filter element, a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough, a round pressure gauge reading in bar, and a reverse (check) valve that holds the set downstream pressure if the upstream supply is lost. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulation range is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl carries a mounting bracket.
This is a genuine AirTAC part from the GFR300 series. The GFR line is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and with choices of drain type, 40 um or 5 um filtration, gauge style and scale, thread form (PT standard, G or NPT to order) and bracket. Rated flow for this series is published as curves rather than a single figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR30015C3TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT 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 — round, bar 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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) |
Feeding air to clamps and small presses on a production line, where the check valve holds the set pressure at the fixture if the main supply dips and the 40 um element keeps rust and pipe scale out of the clamp cylinders.
Supplying regulated, filtered air to packaging machine actuators and sealing heads, with the differential-pressure drain clearing condensate through shift-length runs so operators are not stopping to drain bowls.
Conditioning bench air for lab rigs and test stations, where the bar-reading gauge gives a clear set-point readout and the 40 um element protects sensitive instruments and fittings from water and debris in the shop air.
Size 300 with 1/2 in ports suits lines whose air demand sits in the middle of the GFR range; step up to size 400/600 or down to size 200 according to the flow your line needs. The 40 um element is the standard grade for general plant air; choose the 5 um (W) option where downstream valves and cylinders need finer protection. The differential-pressure drain fitted here needs no daily attention; specify automatic (A) for unattended duty or manual (M) where you want drain control in the operator's hands. The round gauge fitted reads in bar; square embedded gauges and MPa or psi scales are alternatives. PT is the standard thread; this unit is ordered with NPT, and G (BSPP) is also available. Bracket is included. Because rated flow is published as curves rather than a single figure, 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. 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 performance curves rather than a single rated figure, so we do not quote a number that could mislead your sizing. Tell us your inlet pressure, set pressure and air demand and we will confirm the datasheet curve figures for this exact model on request before you order.
The differential-pressure drain fitted here opens automatically to expel collected condensate when the pressure drop across the 40 um element rises, so it needs no manual attention under normal duty. If your application runs unattended or you prefer operator-controlled draining, the same GFR300 body is available with an automatic (A) or manual (M) drain - just ask for the alternative code.
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.