The AirTAC GFR400C15ALF1TK 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 GFR400C15ALF1TK is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in a single body for compressed air. It removes water and particulate from the supply and holds a set downstream pressure. This configuration is built on the size 400 body with 1/2 in NPT ports, an automatic drain that expels collected condensate without manual intervention, the standard 40 um filter element, the low-pressure regulator type, an embedded square gauge with MPa scale, a reverse/check valve (code K) fitted, and a mounting bracket included. 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 GFR400 sits in the GFR size range of 200, 300, 400 and 600, with options across the family including manual or differential-pressure drains, a 5 um element (code W), psi or bar gauge scales, an external round gauge, and G (BSPP) or PT threads ordered as catalogue options. Flow is published as curves rather than a single rated figure, so we confirm flow and datasheet figures on request before you order.
| Model | GFR400C15ALF1TK 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 filtered, regulated air to the clamping and actuation cylinders on a stamping or forming press, where the low-pressure type holds a gentle, stable set point for workholding.
Supplying the air cylinders and actuators that drive diverters, pushers and sealing heads on a packaging conveyor, with the automatic drain keeping condensate out of the valves.
Conditioning the machine air on looms, winders and processing equipment that runs on lower regulated pressures, where clean, moisture-free supply protects the machine's pneumatic circuit.
Choose the size and port step against the air demand of the circuit: this unit is size 400 with 1/2 in NPT ports, the larger step in the GFR range for higher-demand lines. The automatic drain suits points where condensate must be expelled without an operator visiting the unit; manual and differential-pressure drains are available elsewhere in the family if you prefer a different service routine. The 40 um element is the standard grade for general machine air; specify the 5 um W grade if downstream equipment needs finer filtration. The fitted square gauge reads in MPa; psi and bar scales and an external round gauge are catalogue options. PT is the standard thread, with G (BSPP) and NPT available as orderable variants, and the bracket is included for panel or wall fixing. Because flow is published as curves and not as a single rating, and the low-pressure type's regulation range is not published in our data, ask us to confirm sizing and set-pressure range 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 this series as curves rather than a single rated figure, so we do not quote one number. Tell us your line demand and application and we will confirm the flow and the datasheet figures for this exact model on request before you order.
The A in the code means the bowl drain is automatic: collected condensate is expelled without anyone opening the drain by hand, which suits units mounted in less accessible positions. Across the GFR family you can also order manual or differential-pressure drains; the drain choice also affects the regulator's adjustment range, so confirm the figures for your configuration with us.
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.