The AirTAC GFR400-15C2W AirTAC Filter Regulator PT1/2, 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 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 GFR400-15C2W is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size-400 unit is ported PT1/2 (1/2 in PT thread; G and NPT threads are available as order options). The 5 um filter element (code W) captures finer particles than the standard 40 um element, the differential-pressure drain bleeds accumulated condensate automatically as flow passes through, and the fitted round gauge reads downstream pressure in psi. 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 range is -5 to 70 C (non-freezing). The polycarbonate bowl is fitted with a mounting bracket.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of 40 um or 5 um filtration, differential-pressure, automatic or manual drains, embedded square or external round gauges with MPa, psi or bar scales, and G, NPT or PT threads. Flow is published as curves rather than a single rated figure, so contact us and we will confirm the datasheet and flow data for your application on request.
| Model | GFR400-15C2W AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (PT 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 | Fitted — round, psi 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. |
|---|---|
| 15 | Port size PT1/2". 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Clean, regulated air to a bench or floor-mounted pneumatic press, where the 5 um element protects valve spools and the regulator holds a set working pressure at the 1/2 in port.
Point-of-use conditioning for cartoning and wrapping machines, giving the machine's cylinders and actuators filtered, pressure-controlled air from a single 1/2 in connection.
Feeding diverters, stoppers and pusher cylinders on a conveyor line, with the differential-pressure drain handling condensate as air flows through the unit.
Step up or down through the GFR sizes (200, 300, 400, 600) to match the port and flow path your line needs; this size-400 unit carries PT1/2. Choose the drain to suit maintenance practice: differential-pressure (this unit) drains with flow, automatic drains on condensate level, and manual requires periodic draining. Choose 40 um for general air preparation or 5 um (this unit) where finer particulate protection matters. Gauge scale (MPa, psi or bar) and thread (PT standard, G or NPT to order) are selected in the code. Because flow is published as curves rather than a single rating, 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. 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 GFR series as curves, not as a single rated number, so we do not quote a figure here. Contact us with your application and we will confirm the datasheet and flow curves for this 1/2 in unit on request.
The 40 um element is the GFR standard for general air preparation. The 5 um element (code W, fitted on this model) filters finer particulate, which suits downstream components that are more sensitive to particle size. Both grades are available across the GFR range.
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.