The AirTAC GFR300C10ALJC1TK AirTAC Filter Regulator NPT3/8 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 GFR300C10ALJC1TK is a filter regulator: water and particulate filtration plus pressure regulation combined in a single size-300 body with a 3/8 in NPT port. This configuration carries the standard 40 um filter element with an automatic drain, so collected condensate is expelled without manual attention. The regulator is the low-pressure type, and the exact adjustment range for this variant is not published in the catalogue - confirm it with us before sizing. A round external gauge on the MPa scale is fitted so the downstream setting can be read directly, and a reverse (check) valve is included. No mounting bracket is supplied with this code.
This is a genuine AirTAC part from the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in. Across the family you can order manual or differential-pressure drains, a 5 um element (code W), gauge scales in MPa, psi or bar, and PT, G (BSPP) or NPT threads. Flow is published as curves rather than a single rated figure, so we confirm flow and datasheet figures on request for your application.
| Model | GFR300C10ALJC1TK AirTAC Filter Regulator NPT3/8 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) |
Fixture clamps and swing cylinders that must hold at a deliberately low set pressure get filtered air and a low-pressure regulated supply from one body, with the round MPa gauge letting the setter read the clamp setting directly.
On a packaging line with seal bars, diverters and small actuators running at reduced pressure, this unit filters water and particles from the shop air, holds the low regulated setting, and its automatic drain keeps condensate out of the bowl during continuous shifts.
Booth controls and air-driven coating equipment that must not see line pressure take their supply through this filter regulator: the 40 um element strips water and particulate, the low-pressure regulator sets the working pressure, and the check valve holds the setting if upstream supply dips.
Choose the size by the port and flow step you need: this size-300 unit has a 3/8 in NPT port, with smaller and larger steps available across the GFR range. Drain choice is real and decodable: automatic (this unit, code A) empties the bowl without intervention, manual requires operator action, and differential-pressure draining is the family default. The element is the 40 um standard; order the W code if your application needs the 5 um grade. Gauge scale options are MPa, psi or bar, and the thread can be ordered as PT (standard), G (BSPP) or NPT (this unit). Brackets are optional on GFR, and this code is supplied without one.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, so ask us to confirm the flow figure 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 family 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 figure from the datasheet and check the sizing against your required port and pressure before you order.
This code carries drain type A, which expels collected condensate from the bowl automatically. The family also offers manual draining and a differential-pressure default. Automatic draining suits unattended or continuously running equipment; choose manual where an operator is on site and you want to control when the bowl empties.
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.