The AirTAC GFR30010NWTK AirTAC Filter Regulator NPT3/8, 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 GFR300-10NWTK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 300-size unit is ordered with a 3/8 in NPT port, a 5 um filter element (the finer of the two grades), and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough. No gauge is fitted on this variant, and a reverse/check valve is included to hold downstream pressure if the supply drops. The polycarbonate bowl is rated to the family maximum inlet of 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). A mounting bracket is included.
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drain, 40 um standard or 5 um (W) filtration, gauge or no-gauge variants with MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR30010NWTK AirTAC Filter Regulator NPT3/8, 5 um |
|---|---|
| Series | GFR300 filter regulator |
| Port size | PT3/8" (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. |
|---|---|
| 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. |
| 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR200 |
| One size up | GFR400 |
| Add lubrication | GFC300-10 (two-unit set) |
Feeding clean, regulated air to the tool-change clamping circuits and air-blast nozzles on a machining centre, with the 5 um element guarding the pilot valves from fine particulate.
Conditioning the air that drives carton-forming and case-sealing cylinders on a packaging line, where the check valve holds the downstream setting if the plant supply dips between machines.
Point-of-use filtration and regulation ahead of the valve island on an assembly robot cell, keeping water and 5 um-and-larger particles out of the directional control valves.
Size the unit by the flow your line needs: the 300 size steps up from 200 with a larger 3/8 in port, and 400/600 go further still - we can check the published flow curves against your consumption before you order. This unit carries the 5 um element (code W); the 40 um standard grade suits general shop-air prep, while 5 um protects more sensitive valves and instruments downstream. Drain choice matters: the differential-pressure drain fitted here needs no operator attention, while automatic and manual drains are available as alternates. Gauge variants (square embedded or round external, in MPa, psi or bar scales) can be ordered if you want a visible setpoint. Thread is NPT here; PT is the standard catalogue thread and G (BSPP) is also an order option. A mounting bracket is included with this code.
Flow is published as curves, not a single rating, so there is no one rated-flow number to quote. Send us your application details 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 the GFR series as curves, not as a single rated figure, so we do not quote a number. Send us your line pressure, downstream consumption and allowable pressure drop, and we will confirm the sizing from the datasheet on request.
The W in the code selects the 5 um filter grade instead of the 40 um standard, for finer protection of downstream valves and instruments. The K adds a reverse/check valve, which holds the regulated downstream pressure if the upstream supply falls. Both are order-time options on the GFR300-10.
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.