The AirTAC GFR30015F3TK AirTAC Filter Regulator NPT 1/2 in, Bar Gauge 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 PT1/2" 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 GFR30015F3TK is a size 300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration has a 1/2 in NPT port, the standard 40 um filter element, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and an embedded square gauge reading in bar so you can set and monitor outlet pressure at a glance. A reverse (check) valve is fitted, and the unit is supplied with a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulation range is 0.15-0.9 MPa (20-130 psi), and the operating temperature is -5 to 70 C (non-freezing). The polycarbonate bowl suits the 300 size; only the 600 size uses an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, a 5 um element option (code W), gauge scale options and G/NPT thread variants. Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30015F3TK AirTAC Filter Regulator NPT 1/2 in, Bar Gauge |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT 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 — square, bar 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. |
|---|---|
| 15 | Port size PT1/2". 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. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Feeding clean, pressure-controlled air to the cylinders and actuators on a carton-forming or wrapping line, with the bar gauge letting operators verify the set point during changeover.
Supplying filtered, regulated air to the pop-up diverters, stoppers and gate cylinders along a conveyor system, with the check valve holding the downstream circuit if supply pressure dips.
Conditioning shop air for a test bench or laboratory rig where particulate and water must be stripped out and the outlet pressure held steady for repeatable results.
Choose the size and port step against the air demand of the circuit: this unit is size 300 with a 1/2 in NPT port; larger sizes carry larger ports and more flow, and the published flow curves - not a single rating - are the honest basis for sizing, so ask us to confirm against your application. Decodable choices on this family: drain type (differential-pressure as here, automatic, or manual - note the manual-drain version has the wider 0.05-0.9 MPa regulation range), filter grade (40 um standard, 5 um with code W), gauge scale (MPa, psi or bar - this unit is bar), thread (PT is the standard; G and NPT are catalogue options, and this unit is NPT), and bracket (included here; code J deletes it). The reverse/check valve (code K) is fitted on this unit.
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 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 datasheet and check the flow curve against your required flow and pressure before you order.
A blank drain position means the differential-pressure drain, the standard option: collected condensate is bled off automatically as air flows through the unit, with no manual intervention. If you prefer a fully automatic float drain (code A) or a manual drain (code M), those are available in the same series - note the manual-drain version also has the wider 0.05-0.9 MPa regulation range.
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.