The AirTAC GFR300C10F1TK 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 GFR300C10F1TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This size 300 unit is threaded NPT3/8 (3/8 in), carries the standard 40 um filter element, and drains condensate by differential pressure, so the bowl purges itself whenever the pressure differential across the element is high enough - no daily manual draining on lightly loaded lines. The fitted square gauge reads in MPa, a reverse/check valve holds downstream pressure when the supply is shut off, and a mounting bracket is included. The polycarbonate bowl suits the -5 to 70 C (non-freezing) operating range, with a maximum inlet pressure of 1.0 MPa (145 psi) and a regulation range of 0.15-0.9 MPa (20-130 psi).
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with a choice of drain type (differential-pressure, automatic or manual), 40 um or 5 um (W) filtration, gauge style and scale, thread option (PT standard; G and NPT to order) and reverse/check valve. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR300C10F1TK 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) |
Filtering and regulating the shop-air feed to a machining centre's pneumatic tool changers and clamps, with the check valve holding the clamp pressure if the main supply drops.
Conditioning the air feeding conveyor stop-gates and pusher cylinders on a packaging line, where the differential-pressure drain keeps the bowl clear without operator attention.
Supplying cleaned, regulated air to loom and winding-machine pneumatics in a textile mill, with the 40 um element catching pipe scale and the MPa gauge giving operators a local setpoint readout.
Size 300 with a 3/8 in port sits mid-range in the GFR line: step up to 400/600 or down to 200 depending on the flow your line needs - we will confirm sizing against the published curves on request. This configuration is fixed as differential-pressure drain and 40 um filtration; if your air is unusually wet, an automatic drain variant, and if you protect finer components, a 5 um (W) element, are both catalogue options. The square MPa gauge is fitted here; psi or bar scales and an external round gauge can be specified instead. Thread is NPT on this unit (PT is the standard; G is also an order option), and the K code means a reverse/check valve is fitted - useful where you want the set pressure held during supply loss. Flow is published as curves, not a single rating, so please 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, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the flow and sizing directly from the datasheet on request.
K means a reverse/check valve is fitted: when the upstream supply is shut off, the valve holds the regulated downstream pressure instead of letting it bleed back. Choose the version without K if you want downstream pressure to vent on shutdown.
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.