The AirTAC GFR300C15JF3WTK 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 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 GFR300C15JF3WTK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration filters compressed air down to 5 um (the finer of the two available grades), drains collected condensate by differential pressure, and regulates downstream pressure anywhere in the 0.15-0.9 MPa (20-130 psi) range. The embedded square gauge reads in bar, a reverse/check valve is fitted to hold the downstream setting, and the 300-size body takes a 1/2 in NPT port with a polycarbonate bowl. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature is -5 to 70 C, non-freezing. No mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR series is made in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, square or round gauges scaled in MPa, psi or bar, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR300C15JF3WTK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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 carton sealers, case erectors and wrapping heads on a packaging line: the 5 um element keeps water and fines out of directional valves and cylinders while the regulator holds a steady working pressure on the drop.
Supplying pneumatic grippers and sample-handling actuators on lab automation, where the fitted check valve holds the set pressure if upstream supply dips and the bar-scale square gauge gives a clear local reading.
Point-of-use preparation for conveyor diverters, stoppers and pusher cylinders along a distribution line: one body does the filtering and the regulating, with the 1/2 in NPT port matching the main drop leg.
For a filter regulator the real decisions are size and port, drain type, filter grade, gauge and thread. This code fixes a 300-size unit on a 1/2 in NPT port; step to 200, 400 or 600 if your line's air demand sits at a different point, since larger sizes carry larger ports and more flow capacity. The 5 um element (code W) is the finer grade and suits points of use that see sensitive valves and actuators; the standard 40 um element is the economical choice for general shop air. The drain here is differential-pressure, which ejects condensate using the pressure drop across the element; automatic (A) or manual (M) drains can be ordered instead. The square gauge on this unit is scaled in bar, with MPa or psi scales and an external round gauge available as alternatives. Thread is NPT on this code; PT is the standard thread and G (BSPP) is also a catalogue option. No mounting bracket is included (code J), so order one if you bracket- or panel-mount the unit. Flow is published as curves, not a single rating, so send us your flow and pressure requirements 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves rather than a single rated figure, so we do not quote a number here. Tell us your required flow and working pressure and we will confirm the sizing from the datasheet on request.
The W code specifies the finer 5 um filter grade instead of the standard 40 um element, and the drain is the differential-pressure type, which ejects collected condensate using the pressure drop across the element. Automatic (A) and manual (M) drains are available to order if your application needs a different drain behaviour.
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.