The AirTAC GFR300C15ALC1T AirTAC Filter Regulator NPT1/2 Low-Pressure 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 GFR300C15ALC1T is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure in a single body. This configuration is built on the 300 size with 1/2 in NPT ports, a metal bowl with automatic drain, the 40 um standard filter element, and the low-pressure regulator type fitted with a round pressure gauge reading in MPa. The mounting bracket is included, and the unit operates from -5 to 70 C (non-freezing) at a maximum inlet pressure of 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR family spans the 200, 300, 400 and 600 sizes with ports from 1/8 to 1 in, and options across the family include manual or differential-pressure drains, a 5 um filter element (code W), embedded square or external round gauges with MPa, psi or bar scales, and G (BSPP) or NPT threads in place of the PT standard. Because flow is published as curves rather than a single rating, we confirm flow and the full datasheet for your application on request.
| Model | GFR300C15ALC1T AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| 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) |
Body-building and spot-weld fixtures run clamp cylinders that need clean air held at a steady, lower set pressure. This filter regulator conditions the branch line feeding the clamps, the automatic drain clears condensed water without a technician visiting each drop, and the MPa gauge lets the setter read the clamping circuit pressure directly.
Actuated diaphragm and pinch valves on treatment skids typically call for a filtered supply at modest actuation pressure. This unit filters the supply air, regulates it at low set pressure via the L-type regulator, and drains condensate automatically, making it a compact conditioning point ahead of the valve solenoid and actuator.
A workshop bench feeding impact wrenches, ratchets and air rammers needs water and grit removed before they reach the tools, plus a stable setting point the technician can adjust. This 1/2 in unit serves as the drop-level filter regulator, with the round MPa gauge giving a clear reading and the included bracket mounting it at the workstation.
The real, decodable choices on this family: step the size (200/300/400/600) and port (1/8 to 1 in) against the air demand of your circuit - this unit sits at 300 size with 1/2 in NPT ports; choose the drain - automatic here, with manual and differential-pressure available; choose the filter grade - 40 um standard on this unit, 5 um (code W) where finer filtration is needed; choose the gauge - the fitted round gauge reads in MPa, and square embedded gauges or psi/bar scales are options; choose the thread - PT is the standard, with G (BSPP) and NPT as order options; and the bracket, which is included here. The regulator on this unit is the low-pressure type, intended for lower set pressures than the standard variant; its exact adjustment range is not published, so ask us to confirm it. Flow is published as curves, not a single rating - 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 flow for the GFR series as curves rather than a single rated figure, so we do not quote a number here. Tell us your working pressure and air demand, and we will confirm the flow for this exact model from the datasheet before you order.
The L code marks the low-pressure regulator variant, intended for lower set pressures than the standard type. Its exact adjustment range is not published in the catalogue, so we confirm it on request. Maximum inlet pressure remains 1.0 MPa (145 psi), and the fitted round gauge on this unit reads in MPa.
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.