The AirTAC GFR400C15LC2WT AirTAC Filter Regulator NPT1/2 Low-Pressure 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 GFR400C15LC2WT is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 1/2 in NPT port, a 5 um filter element (the fine W grade), the low-pressure regulator type, a differential-pressure drain on the bowl, a fitted round gauge reading in psi, and a mounting bracket. The maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of drain type (differential-pressure, automatic or manual), standard or 5 um filtration, gauge and scale options, and PT, G or NPT threads. Flow figures are published as curves rather than a single rating, so ask us to confirm sizing and datasheet details for your application before ordering.
| Model | GFR400C15LC2WT AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| 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) |
A CNC fixture circuit that clamps workholders at reduced, stable pressure: the 5 um element protects the clamp cylinders from water and swarf-carrying air while the low-pressure regulator holds the clamping setpoint.
Positioners and valve pilots on a process line need clean, steady air at moderate pressure. This unit filters to 5 um and regulates the pilot supply, with the round psi gauge giving a local pressure readout at the skid.
Air-table and blow-off stations on packaging lines run best on clean, low-pressure air. This filter regulator conditions the branch feed, and the differential-pressure drain clears accumulated condensate as the element loads.
Start with the port and size step: this unit is size 400 with a 1/2 in NPT port, one step up from 3/8 in and one below 3/4 in, so match it to the line size and the flow your circuit needs. Drain type is a real choice: differential-pressure (as fitted here) dumps condensate when the pressure drop across the element builds, automatic drains continuously, and manual drains only when someone opens it. Filtration is 40 um standard or 5 um with the W code - this unit carries the 5 um element for cleaner downstream air. Gauge options are the embedded square gauge or an external round gauge, with MPa, psi or bar scales; this configuration has a round psi gauge. Thread is PT as standard, with G and NPT as orderable options - this unit is NPT. A bracket is included on this model, and a reverse/check valve can be specified where needed.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated figure, so we do not quote a flow number here. Send us your application details and we will confirm the sizing against the datasheet before you order.
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 family as curves rather than a single rated figure, so we do not quote a flow number for this unit. Tell us your line size and application and we will confirm the flow from the datasheet on request before you order.
The W code in the model number selects the 5 um fine filtration grade; the blank default is 40 um. Choose 5 um where downstream valves, pilots or sensitive actuators need cleaner air. The trade-off is that a finer element loads faster, which matters when picking the drain type - this unit uses a differential-pressure drain that discharges condensate as the pressure drop across the element builds.
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.