The AirTAC GFR30015NWTK AirTAC Filter Regulator NPT1/2 5um 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 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 GFR30015NWTK is an AirTAC GFR300 filter regulator: filtration and pressure regulation combined in a single body, sized for 1/2 in NPT ports. This configuration is fitted with the 5 um filter element (code W) for finer water and particulate removal than the standard 40 um grade, a differential-pressure drain that discharges collected condensate automatically as flow passes through, and a reverse/check valve that holds downstream pressure when the supply is lost. No gauge is fitted (code N), so downstream pressure must be read with a separately sourced gauge if required. 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 is standard at this size, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, PT as the standard thread and G or NPT as order options, plus choices of drain type, filter grade, gauge and scale, and low-pressure or standard regulation. Flow is published as curves rather than a single rated figure, so contact us and we will confirm the datasheet and sizing figures for your application on request.
| Model | GFR30015NWTK AirTAC Filter Regulator NPT1/2 5um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT1/2" (NPT 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 | 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. |
| W | Filtering grade 5 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" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-15 (two-unit set) |
Clean, regulated air for press cylinders and clamps on a machining cell. The 5 um element protects directional valves from particulate and the check valve holds clamp pressure if the main supply drops.
Air preparation for conveyor diverters, carton sealers and wrapping heads on a packaging line. The differential-pressure drain clears condensate during continuous running without a manual bowl visit.
Point-of-use regulation for a multi-station assembly machine fed from a plant air ring main. The 1/2 in NPT ports suit a main machine drop, and regulation keeps actuator speeds consistent at 0.15-0.9 MPa.
Step up or down through the GFR sizes (200/300/400/600) to match the port size and flow demand of the line - this unit is the 300 size with 1/2 in NPT threads. Choose the drain: differential-pressure (this unit, automatic on flow), fully automatic, or manual. Choose the filter grade: 40 um standard or 5 um (this unit, code W) where finer filtration is needed. Gauge options are an embedded square gauge or an external round gauge in MPa, psi or bar scales - this unit carries none (code N). Thread is PT as standard; G (BSPP) and NPT (this unit) are catalogue options to order. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 GFR flow as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Send us your line pressure, downstream pressure target and expected air demand, and we will confirm the sizing against the datasheet on request before you order.
The N in GFR30015NWTK means no gauge is fitted; a square embedded gauge or round external gauge in MPa, psi or bar scales is available on other order codes. The K means a reverse/check valve is fitted, which holds downstream pressure if the upstream supply is interrupted.
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.