The AirTAC GFR30015NTK AirTAC Filter Regulator 1/2 in NPT 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 GFR30015NTK is an AirTAC GFR300 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This unit is built with a 1/2 in NPT port, 40 um standard filtration, a differential-pressure drain that bleeds condensate automatically when the pressure differential across the element rises, and a reverse/check valve that holds downstream pressure when the supply is lost. No gauge is fitted on this code, so add your own if a setpoint display is needed. 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, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, optional 5 um (W) filtration, automatic or manual drain variants, gauge and thread options, and low-pressure or check-valve builds. Flow is published as curves rather than a single rating, so ask us to confirm the flow or datasheet figures for this model before you order.
| Model | GFR30015NTK AirTAC Filter Regulator 1/2 in NPT |
|---|---|
| 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 | 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. |
| 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. |
| 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) |
Installed at the point of use on a factory air main, it filters water and scale out of the supply and holds a steady regulated pressure to the cell's air tools and cylinders.
Feeding the air cylinders that divert, stop and lift product on a packaging or material-handling conveyor, where the check valve keeps actuators from drifting if the main supply drops.
Conditioning the air ahead of a solenoid-valve manifold on an automated machine, protecting valve seats from condensate and particulate while keeping the operating pressure within set limits.
Size and port drive the choice: the 300 size with a 1/2 in NPT port sits mid-range in the GFR line, so step up to 400 or 600 if the air demand grows, or down to 200 for lighter circuits. Drain type matters in use: differential-pressure drains bleed only when the element loads up, automatic drains empty continuously, and manual drains need an operator - pick based on how often the line is attended. Filtration is 40 um standard; specify 5 um (code W) only where downstream equipment needs finer air. This code carries no gauge, so decide whether to fit one locally or order a gauge variant. PT is the standard thread; G and NPT are catalogue options ordered by code, as here with NPT. A bracket is included on this unit.
Flow for GFR units is published as curves, not a single rated figure, so we do not quote a number. Send us your application's air demand and we will confirm sizing against the datasheet 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 GFR units as curves, not as a single rated figure, so we do not quote a number here. Tell us your application's air demand and we will confirm the flow from the datasheet and check the 300 size and 1/2 in port against it before you order.
The N in the code means no gauge is fitted. You can order a GFR variant with an embedded square gauge (or an external round gauge) in MPa, psi or bar scale, or fit and read a separate gauge downstream. The regulator itself still adjusts across 0.15-0.9 MPa (20-130 psi) as standard.
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.