The AirTAC GFR40015MNWTK AirTAC Filter Regulator NPT1/2, 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 PT1/2" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR40015MNWTK is an AirTAC GFR400 filter regulator: a single body that removes water and particulate from compressed air and regulates downstream pressure. This configuration is the size 400 unit with a 1/2 in NPT port, a manual drain bowl in polycarbonate, a fine 5 um filter element, and a standard regulator with an adjustment range of 0.05-0.9 MPa (7-130 psi). A reverse/check valve is fitted, a mounting bracket is included, and no gauge is supplied with this code, so add a gauge separately if a visual pressure setting is needed on the line.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, drain choices (differential-pressure, automatic or manual), 40 um or 5 um elements, gauge options and G/NPT thread variants. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR40015MNWTK AirTAC Filter Regulator NPT1/2, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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 0.05 - 0.9 MPa (7 - 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.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 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 | GFR400 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeding clamps and small press cylinders on a fabrication cell, where filtered, regulated air keeps clamping force consistent from cycle to cycle and the check valve holds the set downstream pressure against supply dips.
Supplying the air cylinders that drive product pushers, flaps and case-forming heads on a packaging line, with the 5 um element protecting close-fitting valve spools from fine particulate.
A 1/2 in branch take-off from the plant ring main feeding vises, chucks and fixture actuation at a machine tool, where the manual-drain bowl is emptied during scheduled shift checks.
Work from the port step first: size 400 with a 1/2 in NPT port suits lines where the main air supply is already at that scale; step down to size 200/300 or up to 600 if your pipework or expected flow differs. Because flow is published as curves and not a single rating, ask us to confirm sizing against your actual air demand before ordering. On this code the drain is manual, so plan a routine bowl-drain check into maintenance; if nobody will do that reliably, consider the automatic-drain variant. The 5 um element (code W) is the finer choice over the standard 40 um, useful where downstream valves and cylinders see finer contamination. This unit ships without a gauge, so select one separately if you need to set and verify pressure; thread is NPT here, with PT and G (BSPP) available as order options, and a mounting bracket is included.
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 GFR400 series as curves, not as a single rated number, so we do not quote a l/min or SCFM figure. Send us your air demand and line pressure and we will confirm the flow and sizing from the datasheet on request before you order.
Manual drain means someone opens the bowl drain at maintenance intervals to clear accumulated water; if that will not happen reliably, choose the automatic-drain variant instead. No gauge is fitted under code N, so order a gauge separately if operators need to set and verify pressure. With the manual drain, the regulation range is 0.05-0.9 MPa (7-130 psi).
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.