The AirTAC GFR400C15C1TK AirTAC Filter Regulator NPT1/2 with Gauge 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 GFR400C15C1TK is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air with the standard 40 um element, then regulates downstream pressure with the standard regulator type over a 0.15-0.9 MPa (20-130 psi) adjustment range. This configuration is built around a 1/2 in NPT port, carries a differential-pressure drain that bleeds condensate automatically as flow passes through, and is fitted with an external round gauge on the MPa scale plus a reverse/check valve (code K). Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The size 400 polycarbonate bowl keeps the condensate and element visible, and the mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, a 5 um element option (code W), gauge styles and MPa/psi/bar scales, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR400C15C1TK AirTAC Filter Regulator NPT1/2 with Gauge |
|---|---|
| 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) |
Point-of-use filtration and regulation on a spray-booth drop: water and grit are stripped from the compressed air line before the regulator sets the pressure the booth controls and atomising circuits see.
Feeding the pneumatic cylinders that drive carton forming and case sealing on a packaging conveyor: one body cleans the supply air and holds a steady set pressure so the stroke behaviour stays repeatable through the shift.
Conditioning the air that actuates workpiece clamps on a machining centre: the 40 um element keeps swarf-adjacent valve seats clean while the regulator holds the clamping pressure the fixture was designed around.
Use the size and port step to match the air demand of the circuit: this unit steps up to size 400 with a 1/2 in NPT port for lines that have outgrown 1/4 in or 3/8 in points, and larger or smaller GFR sizes are available if the flow curves say so. The drain choice matters in practice: the differential-pressure drain fitted here needs no operator attention but only purges while air is flowing, so pick the automatic drain (code A) for intermittently used lines or the manual drain (code M) where an operator can bleed the bowl on a schedule. The 40 um element fitted here is the standard grade; specify code W for the 5 um element where finer filtration is needed. The round gauge fitted here reads in MPa; square embedded gauges and psi or bar scales are the other catalogue options. The K code adds a reverse/check valve, useful where backflow must be blocked, and the bracket is included for panel or wall fixing. Thread is NPT here; PT is the standard thread for the series and G is the other order option. Because flow is published as curves and not a single rating, send us your air demand and we will confirm 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 series as curves, not as a single rated figure, so we do not quote one number. Tell us your line pressure and air demand and we will confirm the sizing from the datasheet curves on request before you order.
K means a reverse/check valve is fitted, so backflow at the inlet is blocked. The C1 in the code selects the external round gauge on the MPa scale; the embedded square gauge is the standard fitting and psi or bar scales are available as catalogue options if you prefer.
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.