The AirTAC GFR300C15AJF3WTK AirTAC Filter Regulator NPT1/2, 5 um 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 See datasheet 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 GFR300C15AJF3WTK is an AirTAC GFR-series filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body. This 300-size unit is threaded NPT1/2 (1/2 in), carries a 5 um filter element (code W), an automatic drain, and a metal bowl. The standard regulator covers 0.15-0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and an embedded square gauge scaled in bar is fitted. A reverse/check valve is built in, and the unit is supplied without a mounting bracket. Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and choices of thread (PT standard, G and NPT to order), drain type, filter grade and gauge scale. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR300C15AJF3WTK AirTAC Filter Regulator NPT1/2, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | See datasheet (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 — factory standard, Factory standard 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. |
|---|---|
| C1 | Port size See datasheet. 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). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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. |
| (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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-C1 (two-unit set) |
Feeding clean, regulated air to the pneumatic actuators and tool-clamp circuits of a CNC machining cell. The 5 um element screens fine particulate from control valves, the automatic drain clears condensate without daily attention, and the bar-scale gauge lets setters verify the regulated pressure at a glance.
Supplying regulated air to the forming and sealing cylinders of a carton packaging conveyor. The regulator holds a steady downstream pressure for consistent seal strokes, the reverse/check valve helps maintain downstream pressure, and the auto drain keeps condensate out of the valve bank.
Providing filtered, regulated air to pneumatic clamps and swing cylinders on an automotive assembly station. The 5 um grade protects precision clamping valves, the 0.15-0.9 MPa (20-130 psi) adjustment range covers typical fixture settings, and the embedded square gauge supports routine pressure checks.
Choose the size step (200/300/400/600) and port against the air demand of the circuit; this unit sits at 300 size with a 1/2 in NPT thread. Drain type is a real choice: automatic (as here, code A), manual (M), or the differential-pressure default. Filter grade is 40 um standard or 5 um with the W code - this unit carries the 5 um element. Gauge scale is selectable (MPa, psi or bar); the square gauge is embedded, with an external round gauge optional. Thread is PT as standard with G and NPT as order options, and a bracket can be included or omitted (J = none). Because flow is published as curves rather than a single rating, 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
Flow for the GFR300 is published as a curve, not a single rated figure, so we do not quote a number here. Send us your air demand and operating pressure and we will confirm the flow from the AirTAC datasheet on request before you order.
Code A fits an automatic drain that expels collected condensate without daily manual attention. The GFR family also offers a manual drain (M) and a differential-pressure drain as the default. With an automatic drain, the regulator adjustment range is 0.15-0.9 MPa (20-130 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.