The AirTAC GFR30015NT AirTAC Filter Regulator, NPT 1/2 in 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 GFR30015NT is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 300 unit is fitted with a 1/2 in NPT port, the standard 40 um filter element, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the bowl is high enough. It regulates from 0.15-0.9 MPa (20-130 psi), and no gauge is fitted in this configuration - a gauge can be ordered separately if local pressure indication is needed. The polycarbonate bowl carries a 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, thread options PT (standard), G and NPT, drain choices (differential-pressure, automatic or manual), an optional 5 um filter element (code W), and gauge or no-gauge configurations. Flow is published by AirTAC as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR30015NT AirTAC Filter Regulator, NPT 1/2 in |
|---|---|
| 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 | Not fitted |
| 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. |
|---|---|
| 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. |
| N | No pressure gauge (N). |
| (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. |
| T | NPT 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 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Mounted at the drop feeding a pneumatic press or forming machine, this unit filters water and pipe scale out of the shop air line and holds the working pressure steady so the press cylinder cycles consistently shift after shift.
Installed on the branch line serving conveyor diverters, gates and stopper cylinders, it keeps moisture and debris out of the actuators while letting maintenance set the exact downstream pressure the conveyor controls were designed around.
On a laboratory or QA test bench where instruments and pneumatic fixtures need clean, stable air, the 40 um element strips water and particles and the regulator lets the operator dial in the precise supply pressure each test requires.
Start with the port and size step: this unit is size 300 with a 1/2 in NPT port; smaller and larger GFR sizes (200/400/600) step the port and flow capacity up or down, so match the step to the line size and the air demand of the equipment it feeds. Choose the drain: this configuration uses the differential-pressure drain (the default); automatic (code A) or manual (code M) drains are available if your duty cycle or maintenance routine calls for them. Filter grade is the standard 40 um here; specify 5 um (code W) where finer particulate removal matters. Gauge is not fitted (code N); gauge options with different scales can be ordered. Thread: PT is the AirTAC standard, while G (BSPP) and NPT are catalogue options - this unit is ordered with NPT. A mounting bracket is included.
One honest note before you order: AirTAC publishes flow for this family as curves, not as a single rated number, so we cannot quote a rated flow here. Send us your application details and we will confirm the datasheet figures and correct sizing on request.
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 rated flow, Cv or l/min number here. Send us your line size and air demand and we will confirm the datasheet flow figures and check the sizing for your application on request.
This unit's differential-pressure drain (the default) discharges collected condensate automatically when the pressure differential across the bowl rises, so it needs no daily manual draining under normal duty. If your compressor cycles heavily or the unit sits downstream of a valve that sees frequent pressure swings, an automatic drain (code A) or a manual drain (code M) may suit the installation better - both are catalogue options on this family.
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.