The AirTAC GFR300C15LJF2WK AirTAC Filter Regulator PT1/2 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 GFR300C15LJF2WK is an AirTAC GFR300 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration is built for a PT1/2 port, carries the 5 um filter element (code W), drains condensate by differential pressure, and is the low-pressure regulator type. A square pressure gauge with a psi scale is embedded, a reverse/check valve (code K) is fitted, and no mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. GFR filter regulators are available in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) filtration, gauge scales in MPa, psi or bar, and PT, G or NPT threads. Flow figures are published as curves rather than a single rating, so ask us to confirm sizing and datasheet details for your application.
| Model | GFR300C15LJF2WK AirTAC Filter Regulator PT1/2 |
|---|---|
| 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) |
On an assembly cell where pneumatic clamps and workholding fixtures are designed to close gently rather than at full line pressure, a filter regulator in the air drop cleans the supply and holds the reduced setting the fixtures were set up for.
Bench-top test rigs and pilot rigs often need a cleaned, reduced and stable air feed to their actuators and instrument circuits. A filter regulator at the rig inlet removes water and fine particles and lets the technician set the rig pressure independently of the building supply.
Stopper cylinders, pushers and diverters on a packaging conveyor line behave best on cleaned air at a set pressure below the compressor header. A filter regulator at the line drop conditions the supply once for the whole run of actuators.
Size and port set the flow path: this unit is the 300 size with a PT1/2 port; step up to size 400 or 600 when the line needs a larger port, or down to 200 for compact points of use. Drain choice matters: this unit uses the differential-pressure drain, while automatic (code A) and manual (code M) drains are order options. Filtration here is the finer 5 um element (code W); the standard 40 um element suits general shop air where finer cleaning is not required. The embedded square gauge reads in psi, with MPa and bar scales and an external round gauge available as alternatives. Thread is PT as standard, with G and NPT available to order, and brackets are optional - this unit is supplied without one. 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR300 flow as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure, downstream demand and port size, and we will confirm the flow from the datasheet for this exact model before you order.
The L code marks the low-pressure regulator variant of the GFR300. The exact adjustment range for this variant is not published in our data, so we confirm it from the AirTAC datasheet on request. If your process runs at a reduced setting rather than full line pressure, this is the variant to shortlist.
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.