The AirTAC GFR300C15ALJF1WT 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 AirTAC GFR300 series combines water and particulate filtration with pressure regulation in a single filter-regulator body. This configuration is built with 1/2 in NPT ports, a 5 um filter element (code W) for finer particle capture than the standard 40 um grade, and an automatic drain that expels collected condensate without manual attention. The regulator is the low-pressure type, intended for circuits that operate at reduced pressures; the exact setting range for this type is not published, so ask us to confirm it against your application. A square pressure gauge graduated in MPa is fitted, the bowl is metal, maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and with choices of drain type, filter grade, gauge style and scale, thread (PT standard, with G and NPT as order options), mounting bracket and reverse/check valve. Flow is published as curves rather than a single rating, so we confirm flow and datasheet figures on request before you order.
| Model | GFR300C15ALJF1WT 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) |
Filtered, regulated air to clamp and hold-down cylinders on carton-sealing and stretch-wrapping machines, where the low-pressure regulator type serves circuits set well below full line pressure and the automatic drain keeps condensate off the valve seats.
A conditioned supply branch for pick-and-place grippers on an electronics assembly cell, with the 5 um element protecting pilot valves and small actuators from fine particulate in the shop-air ring main.
Regulated air to stopper and divert cylinders along a bottling-line conveyor, where the automatic drain handles condensate carryover in humid plant air and the square MPa gauge lets line technicians check settings at a glance.
Size and port step up with flow demand: 200, 300, 400 and 600, with ports from 1/8 in to 1 in; this unit is size 300 with 1/2 in NPT threads. For the drain, choose differential-pressure (the default), automatic (fitted here, for unattended condensate removal) or manual. Filter grade is 40 um standard or 5 um with the W code, as on this unit. Gauges are embedded square as standard with an optional external round gauge, in MPa, psi or bar scales; thread is PT as standard with G and NPT as order options; a mounting bracket is optional and not fitted on this code. Because flow is published as curves rather than a single rated figure, send us your application details 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, 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 curve and the full datasheet figures for GFR300C15ALJF1WT on request.
This code carries the A drain option, which ejects collected condensate automatically so the bowl does not need regular manual bleeding - useful on lines that run unattended. The GFR300 series is also available with manual or differential-pressure drains, and with the standard 40 um element instead of the 5 um W grade fitted here.
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.