The AirTAC GFR300C15MLJC1WT 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 GFR300C15MLJC1WT is an AirTAC GFR-series filter regulator: a 5 um filter element and a pressure regulator combined in one body, size GFR300 with 1/2 in NPT ports. This configuration is the low-pressure regulator type with a manual drain bowl, a fitted round pressure gauge scaled in MPa, no mounting bracket and no reverse/check valve. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The bowl on this unit is metal.
This is a genuine AirTAC part. The GFR range runs from size 200 to 600 with ports from 1/8 in to 1 in, and options across the range include automatic, manual or differential-pressure drains, a 40 um standard or 5 um (W) element, embedded square or external round gauges in MPa, psi or bar scales, G (BSPP) and NPT thread variants, and mounting brackets. Flow is published as curves rather than a single rating, so ask us to confirm the figures from the datasheet for your application.
| Model | GFR300C15MLJC1WT 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) |
Mounted on a 1/2 in branch line feeding an assembly cell, the unit removes water and particles from the shop air down to 5 um and regulates the supply to the reduced pressure the cell's hand tools, air vices and clamps run at.
On a packaging line's 1/2 in air main, the unit filters the supply to carton sealers, labelers and pusher cylinders and regulates it to the lower pressure those actuators need, with a manual drain for end-of-shift checks.
Feeding a pneumatic press or welding fixture circuit, the low-pressure regulator type suits duty at reduced set pressures, while the 5 um element protects directional valves and cylinders from water and swarf in the shop air.
Size and port step up together: 200, 300, 400 and 600, with ports from 1/8 in to 1 in. Pick the step whose flow curve covers your demand rather than port size alone, and ask us to check the curve against your application before ordering. The drain on the filter bowl is manual on this unit; automatic and differential-pressure drains are the alternatives, with manual suiting points where someone is on site and automatic suiting hard-to-reach installations. Filter grade is 40 um standard or 5 um with the W code - this unit carries the 5 um element. Gauges are embedded square as standard with an optional external round gauge in MPa, psi or bar scales; this unit has the round MPa gauge. Thread is PT as the standard, with G (BSPP) and NPT as order options - this unit is NPT. A bracket is optional and this configuration is supplied without one. The regulator here is the low-pressure type, selected for circuits that run at reduced set pressures; its exact adjustment range is not published in the catalogue, so confirm it with us on request.
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 as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow figures from the datasheet before you order.
The M code in GFR300C15MLJC1WT selects the manual drain: the metal bowl is drained by hand rather than automatically, so it suits a point where someone is on site regularly. Note also that the regulator is the low-pressure type, whose exact adjustment range is not published in the catalogue - confirm it with us on request.
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.