The AirTAC AirTAC GFR30010F2WGK Filter Regulator G3/8, 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT3/8" 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 GFR30010F2WGK is a 300-size filter regulator that removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration has a G3/8 (BSPP) port, 5 um filtration for finer particle capture than the standard 40 um element, a differential-pressure drain that bleeds condensate automatically as flow passes through, an embedded square gauge reading in psi, and a built-in reverse (check) valve that holds downstream pressure when the supply is shut off. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl suits the 300 size, and the unit is supplied with a mounting bracket.
This is a genuine AirTAC part. The GFR family spans 200, 300, 400 and 600 sizes with port options from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, standard or low-pressure regulation, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application before ordering.
| Model | AirTAC GFR30010F2WGK Filter Regulator G3/8, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (G (BSPP) thread) |
| Filtering grade | 5 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 — square, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
|---|---|
| 10 | Port size PT3/8". 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeding clean, regulated air to a machining centre's tool-changer and clamping circuits, where the 5 um element protects precision valves from fine particles and the check valve holds clamp pressure if the shop supply drops.
Conditioning the air feeding conveyor stopper and gating cylinders on a packaging line, with the regulator set once at the line's working pressure and the differential-pressure drain keeping condensate out of the actuators.
Serving a spray-booth air drop where finer 5 um filtration helps protect the gun and regulator from water and grit, and the psi gauge lets operators verify set pressure at a glance between shifts.
Start with the port and size: this 300-size unit carries a G3/8 port, one step up from 1/4 in, so match it to your line size and expected flow demand. Choose the drain to suit access: the differential-pressure drain here needs no attention during operation, an automatic drain (code A) suits unattended duty, and a manual drain (code M) suits installations you visit routinely. The 5 um element (code W) is the right pick when downstream valves or instruments are sensitive to finer particles; the 40 um standard element is adequate for general shop-air protection. The square gauge fitted here reads in psi; MPa and bar scales and an external round gauge are alternatives. Thread is G (BSPP) on this unit, with PT standard and G/NPT available as order options, and the bracket is included.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated figure, so we do not quote a flow number here. Send us your application details and we will confirm the sizing against the datasheet curves before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR family as characteristic curves rather than a single rated figure, so we do not quote a l/min or SCFM number here. Tell us your inlet pressure, set pressure and expected demand, and we will confirm the sizing against the datasheet curves on request before you order.
The differential-pressure drain on this model bleeds collected condensate automatically as air flows through, with no operator action needed. Choose the automatic drain (code A) if the unit will sit on a line with intermittent or low flow where differential draining is less reliable, or the manual drain (code M) if your maintenance routine already includes regular bowl draining.
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.