The AirTAC AirTAC GFR400C15F1T Filter Regulator 1/2 in NPT 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 GFR400C15F1T is an AirTAC GFR-series filter regulator: water and particulate filtration plus downstream pressure regulation combined in one body. This size 400 unit is configured with a 1/2 in NPT port, the standard 40 um filter element, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and an embedded square pressure gauge scaled in MPa. The regulator is the standard type with a 0.15-0.9 MPa (20-130 psi) adjustment range, and a 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 is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and with choices of drain type, 40 um or 5 um filtration, gauge style and scale, thread (PT standard, G and NPT as options) and bracket. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing figures on request.
| Model | AirTAC GFR400C15F1T Filter Regulator 1/2 in NPT |
|---|---|
| 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 filtered, regulated air to a workshop press or clamping station, where the 1/2 in port suits a main drop and the square gauge lets operators set and monitor working pressure at the machine.
Supplying cylinders and actuators on a packaging or cartoning conveyor, with the 40 um element protecting valves from water and debris and the differential drain keeping condensate off the line.
Conditioning the air feed to CNC peripheral circuits, tool changers and air-powered fixtures, combining filtration and regulation in one body to save panel space on the machine's air board.
Size 400 with a 1/2 in port sits in the upper half of the GFR range; step up to 600 or down to 300/200 depending on the flow your line needs - ask us to check the flow curves against your application before ordering. The differential-pressure drain on this unit needs no manual attention under normal flow; choose automatic (A) for low-flow duty or manual (M) where you want scheduled draining. The standard 40 um element suits general pneumatic supply; specify the W code for 5 um where finer protection is needed. The fitted square gauge reads in MPa; psi or bar scales and an external round gauge are alternatives. Thread here is NPT; PT is the standard and G (BSPP) is also an order option. A bracket is included on this configuration.
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 figure, so we do not quote a number here. Tell us your application and we will confirm the flow and sizing from the datasheet on request before you order.
This unit's differential-pressure drain releases collected condensate automatically whenever air flows through the bowl, with no operator action. If your duty includes long low-flow periods, the automatic (A) drain is the better choice; the manual (M) drain suits installations where draining is done on a fixed schedule.
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.