The AirTAC GFR400C15ALC3WT AirTAC Filter Regulator NPT1/2 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 See datasheet 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 GFR400C15ALC3WT is a GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure in a single body. This size-400 unit is threaded NPT1/2, carries a 5 um filter element (code W), drains condensate automatically, and is built on the low-pressure regulator type. A round gauge with a bar scale is fitted, the bowl is metal, and the mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200 to 600 with ports from 1/8 to 1 in, and options across the range include manual or differential-pressure drains, a 40 um standard element, embedded square or external round gauges with MPa, psi or bar scales, G or NPT threads in place of the PT standard, and a reverse/check valve. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C15ALC3WT AirTAC Filter Regulator NPT1/2 |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT 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 | Fitted — factory standard, Factory standard scale |
| 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.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| C1 | Port size See datasheet. This body offers 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. |
| (blank) | Pressure gauge fitted (blank). |
| (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. |
| (blank) | PT 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 | GFR400 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Feeding a low-pressure clamping circuit on a stamping press, where the unit filters shop air and holds a reduced, stable pressure to the clamping cylinders through a 1/2 in NPT drop.
Supplying filtered, regulated air to film-sealing and carton-closing cylinders on a packaging conveyor, with the automatic drain clearing collected condensate between shifts.
Conditioning air at the drop feeding a robotic welding cell, protecting directional valves and cylinders from water and fine 5 um-level particulate on a 1/2 in NPT supply.
Sizing starts with the port step: this is a size-400 unit with a 1/2 in NPT port, and larger sizes in the family carry larger ports and more flow. Because AirTAC publishes flow as curves rather than a single rating, ask us to confirm sizing against your demand before ordering. The real decode choices on this unit are: drain (automatic here; manual and differential-pressure are available), filter element (5 um fitted; 40 um is the standard grade), gauge (round, bar scale fitted; embedded square gauges with MPa, psi or bar scales are options), thread (NPT here; PT is the standard and G is an order option), and the low-pressure regulator type, whose exact adjustment range we confirm on request. Bracket included.
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 GFR400 as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure and air demand and we will confirm the flow from the datasheet on request.
This unit is the L (low-pressure) regulator variant of the GFR400. Its exact adjustment range is not published in the catalogue, so we confirm it on request. Separately, the maximum inlet pressure for this unit is 1.0 MPa (145 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.