The AirTAC GFR300C10LNT 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 GFR300C10LNT is a 300-size filter regulator: water and particulate removal plus pressure regulation in a single body. This configuration has a 3/8 in NPT port, a 40 um standard filtration element, and a differential-pressure drain that automatically purges collected condensate when the pressure differential across the element is sufficient. The regulator is the low-pressure type, no gauge is fitted, the bowl is metal, and a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with matching port sizes, and can be ordered with a 5 um element (code W), automatic or manual drain, a gauge option, G (BSPP) or NPT threads in place of the PT standard, and with or without a bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C10LNT 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) |
Feeds the clamp and hold-down cylinders on a carton-sealing or wrapping line where the actuator circuit is run at a reduced pressure and needs clean, regulated air from a single compact body.
Supplies filtered, regulated air to bench-top pneumatic presses and fixture clamps, with the differential-pressure drain clearing condensate automatically during repeated cycles.
Conditions the supply to air jets, tension rollers and guide actuators on textile or web-converting equipment, protecting the circuit from water and particulate carryover at a 3/8 in connection.
Start with the port and size: this unit steps up to 3/8 in NPT on the 300 body, so match it against the air demand of the circuit it feeds. Because flow is published as curves and not as a single rating, ask us to confirm sizing against your application before ordering. Choose the drain next: differential-pressure (fitted here) purges automatically as the element loads, automatic drain purges on a level basis, and manual drain requires operator attention. Filtration is 40 um as standard; specify the W option for 5 um where downstream components need finer protection. This is the low-pressure regulator type; its exact adjustment range is not published, so confirm it with us if your setpoint is below the standard band. No gauge is fitted on this code; gauge and scale options exist on other codes. Thread is NPT on this unit, with PT as the catalogue standard and G (BSPP) available to order; a bracket is included.
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 series as curves, not as a single rated number, so we do not quote a figure here. Tell us your application and we will confirm the flow and sizing from the datasheet on request before you order.
The blank drain position on this code is the differential-pressure type: condensate is expelled automatically when the pressure drop across the 40 um element is sufficient, with no operator attention. If your usage pattern suits it, the same 300-size body can be ordered with an automatic drain (code A) or a manual drain (code M) instead.
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.