The AirTAC GFR300C15MLJC2WK AirTAC Filter Regulator PT1/2, 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 AirTAC GFR300C15MLJC2WK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built on the GFR300 size with a PT1/2 (1/2 in) PT-thread port, a 5 um filter element (the finer of the two published grades), a manual drain, and the low-pressure regulator type. A round pressure gauge scaled in psi is fitted, a reverse/check valve is installed, and the unit is supplied without a mounting bracket. The polycarbonate bowl suits non-freezing compressed-air service from -5 to 70 C, at a maximum inlet pressure of 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR family covers sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, filter grades of 40 um (standard) or 5 um (code W), differential-pressure, automatic or manual drains, embedded square or external round gauges scaled in MPa, psi or bar, an optional reverse/check valve, and PT, G (BSPP) or NPT threads. Because AirTAC publishes flow only as curves rather than a single rating, we confirm flow and datasheet figures for your application on request.
| Model | GFR300C15MLJC2WK AirTAC Filter Regulator PT1/2, 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) |
On a spray-booth or coating line where atomizing air is regulated at the low end, this filter regulator cleans the air to 5 um and sets the reduced pressure the gun needs, with the round psi gauge giving the operator a direct reading at the point of use.
Feeding a bench press or clamping fixture, the unit strips water and particles before the valve stack and lets the setter dial in a low working pressure, while the fitted reverse/check valve blocks backflow toward the supply side.
On a packaging line driving cylinders and diverters, a single PT1/2 filter regulator conditions the air and sets a low, stable working pressure for the actuators, with the manual drain suited to a supervised daily check routine.
Choose the size by port and required flow: GFR200 through GFR600 step from 1/8 in up to 1 in, so match the port to your line and let us check the published flow curve against your demand before you order. This unit is the low-pressure type (code L), intended where the regulated working pressure sits at the low end; its exact adjustment range is not published, so confirm it with us. Drain choice matters: manual (this unit) releases condensate only when operated, automatic drains condensate on its own, and the differential-pressure default drains on a pressure drop. Filter grade is 5 um here (code W) versus the 40 um standard. The fitted round gauge is scaled in psi; an embedded square gauge and MPa or bar scales are the alternatives. Thread is PT as standard, with G (BSPP) and NPT as order options, and brackets are optional (this configuration has none).
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, not as a single rated figure, so we do not quote a number here. Send us your line pressure, port size and air demand and we will confirm the flow from the datasheet for this exact model before you order.
This configuration uses a manual drain: condensate collects in the bowl and is released when the drain is operated, which suits a supervised maintenance routine. The automatic-drain option (code A) releases condensate on its own, and the differential-pressure default drains on a pressure drop. All three are catalogue options across the GFR family.
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.