The AirTAC GFR300C15LJC2WTK 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 GFR300C15LJC2WTK is an AirTAC GFR300 filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is built around a 1/2 in NPT port, a 5 um filter element (code W) for finer filtration than the standard 40 um grade, and the differential-pressure drain, the series default, which clears collected condensate as operating conditions call for it. It is the low-pressure (L) regulator type, and the C2 option adds an external round gauge read in psi. A reverse/check valve (K) is fitted, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part in the GFR300 size class, one of four sizes (200/300/400/600) with port options from 1/8 to 1 in and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. 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 | GFR300C15LJC2WTK 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) |
On a fixture line where clamps hold workpieces at a low regulated pressure, this filter regulator cleans the supply to 5 um and holds the low setpoint the clamp cylinders need, with the fitted check valve in the circuit against reverse flow.
Bench-top and pilot-scale skids running air-actuated valves at low pressure get water- and particulate-filtered air at a stable low setpoint, with the round psi gauge giving technicians a local pressure readout at the skid.
Divert and stop stations along a packaging conveyor line use this unit to filter plant air to 5 um and regulate it to the low pressure the divert cylinders run at, while the differential-pressure drain keeps collected condensate away from the valves.
The real choices in this series are decodable from the code. Step the size (200/300/400/600) and port (1/8 to 1 in) against the flow your line needs - larger sizes carry more flow, and we will confirm the exact curve figures on request before you order. Choose the drain: differential-pressure (fitted here, the default), automatic (A) for continuous unattended drainage, or manual (M) where you drain on schedule. Choose the filter grade: 40 um standard or 5 um (W, fitted here) for finer protection of downstream equipment. Gauges: an embedded square gauge is standard and an external round gauge is optional, in MPa, psi or bar scales - this unit carries the round psi gauge. Thread: PT is the standard; G (BSPP) and NPT are catalogue order options, and this unit is NPT. Brackets are optional and this unit is supplied without one. Because flow is published as curves rather than a single rating, send us your application and we will confirm sizing 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 flow for the GFR300 series as curves, not as a single rated figure, so there is no one number we can honestly quote. Tell us your inlet pressure, setpoint and the equipment you are feeding, and we will confirm the datasheet curve figures against your application on request before you order.
The GFR series comes with an embedded square gauge as standard, and an external round gauge is a catalogue option. The C2 code on this model selects the round gauge with a psi scale; MPa and bar scales are also available, so choose the scale your technicians read daily.
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.