
The AirTAC Airtac GFR Filter Regulator GFR300C10MF1WK 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.
This GFR300C10MF1WK is an AirTAC G-series filter regulator combining three catalogue options in one part: the W 5 um filter element for finer particulate removal, the K fitted check (reverse) valve, and standard regulation in a single body with a drain bowl and no lubricator. It is a size 300 unit with a 3/8 in G (BSPP) port, manual-drain polycarbonate bowl and embedded square gauge on the MPa scale. Manual drain gives a 0.05-0.9 MPa (7-130 psi) regulating range; maximum inlet pressure is 1.0 MPa (145 psi) and the medium is compressed air at -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family runs sizes 200/300/400/600 with automatic, manual or differential-pressure drains, 40 um or 5 um elements, optional check valve, square or external round gauges in MPa, psi or bar scales, and PT (standard), G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm datasheet and sizing figures for your application.
| Model | Airtac GFR Filter Regulator GFR300C10MF1WK |
|---|---|
| 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) |
Filter-regulates air to clamping cylinders on a machining fixture, with the 5 um element protecting the clamp valves and the check valve helping the circuit hold its setting upstream.
Conditions supply to calibration and leak-test benches, where 5 um filtration guards the instruments and the check valve prevents back-feeding between bench connections.
Feeds the cylinders and sensors actuating diverters, stops and gates on a sorting conveyor, holding a dedicated regulated pressure at the gates regardless of main-line fluctuation.
This code stacks two real choices onto the size 300 body: W for the 5 um element where downstream equipment needs finer filtration than the 40 um standard, and K for the factory-fitted check valve that blocks reverse flow back through the regulator. The manual drain keeps the widest regulating range, 0.05-0.9 MPa (7-130 psi), and the embedded square gauge reads MPa (psi/bar scales and a round external gauge are options). Threads available to order are G as decoded here, plus PT - the series standard - and NPT; the mounting bracket is included unless a J code is specified.
For sizing, note the series is rated by flow curves, not a single number - tell us your pressure and demand and we will confirm the size 300 datasheet figures on request 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 G-series flow as curves rather than a single rated figure, so there is no one flow number to quote. Give us your line pressure, port size and expected air consumption, and we will confirm the size 300 sizing against the datasheet curves on request.
Yes - G (BSPP), NPT and PT are all catalogue thread options on the same unit; PT is the standard thread of the series and G or NPT are specified when ordering. The function, size 300 body, 5 um element, manual drain, MPa gauge and check valve stay the same either way.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.