The AirTAC GFR300C10JC3TK AirTAC Filter Regulator NPT3/8 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 GFR300C10JC3TK is a size 300 filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This configuration is threaded NPT3/8 (3/8 in), carries the standard 40 um filter element, and drains condensate by differential pressure, so the bowl purges automatically as flow passes through - no manual draining routine. It ships with a round pressure gauge reading in bar, a reverse/check valve fitted to hold downstream settings, and no mounting bracket.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, optional 5 um filtration (code W), manual or automatic drains, alternative gauge styles and scales, and G or NPT threads as order options. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm sizing figures from the datasheet for your application.
| Model | GFR300C10JC3TK AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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) |
Clean, regulated air feeding tool changers, clamps and pneumatic cylinders on a machining centre, where the check valve holds the set pressure through demand swings and the differential-pressure drain keeps condensate off the spindle-area actuators.
A packaging conveyor line running diverters, pushers and heat-seal cylinders, where one filter regulator at the drop keeps water and mill scale out of the valves and pins line pressure for consistent seal actuation.
A lab automation or analytical-instrument air ring main where instruments need dry, particulate-free air at a fixed, repeatable pressure, with the bar-reading gauge giving operators a clear local setpoint reference.
Start with the port step: this unit is the size 300 body with a 3/8 in NPT thread, so match it to your line size and the flow your actuators or tools actually draw - if your demand sits near the top of a 3/8 in circuit, step up to size 400 rather than guessing. Drain type is your next real choice: the differential-pressure drain fitted here purges with flow, while a manual drain (code M) suits intermittently used lines and an automatic drain (code A) suits constant-flow installations. The 40 um element is the standard grade; specify 5 um (code W) only where downstream equipment needs finer filtration. The round gauge here reads in bar; square embedded gauges and MPa or psi scales are available. NPT is fitted as ordered - PT is the catalogue standard and G (BSPP) is the alternative - and this unit comes without a mounting bracket (code J).
Because AirTAC publishes flow as curves and not a single rated figure, we do not quote a flow number here. 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 GFR300 series as curves, not as a single rated number, so we do not state a figure here. Tell us your line pressure, set pressure and the air demand of your equipment, and we will confirm the sizing from the datasheet on request before you order.
This unit's differential-pressure drain purges collected condensate automatically whenever air flows through the bowl, which suits continuously running lines. If your line runs only intermittently, a manual drain (code M) lets an operator empty the bowl on a schedule; an automatic drain (code A) suits constant-flow installations that need hands-off condensate removal.
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.