The AirTAC GFR400C15MJF2TK 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 AirTAC GFR400 series combines water and particulate filtration with pressure regulation in a single body, so one 1/2 inch connection does both jobs. This configuration, GFR400C15MJF2TK, is the size 400 unit with NPT threads, a manual drain bowl, the standard 40 um filter element, an embedded square gauge scaled in psi, a built-in reverse/check valve, and no mounting bracket. The manual drain means an operator opens the drain at the bottom of the bowl to expel collected water, and the check valve holds the downstream setting if the upstream supply is interrupted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of manual, automatic or differential-pressure drains, a 5 um fine-filtration option, gauge scale choices and G/NPT thread options. Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR400C15MJF2TK 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) |
Point-of-use conditioning for a CNC machine's pneumatic clamps and tool-change cylinders: the 40 um element stops pipe scale and condensed water reaching the valves, while the regulator holds a steady setting to the actuators and the psi gauge lets the setter read it directly.
Feeding the flap-folders, case erectors and sealing heads on a carton packing line, where the manual drain suits a station an operator walks past each shift and the check valve keeps the downstream pressure stable if the compressor unloads upstream.
Conditioning the air actuating fill and capping valves in a bottling hall: water and particulates are stripped before they reach the valve seats, and the regulated supply keeps container handling cylinders repeating consistently through the shift.
Size 400 with 1/2 inch ports sits in the upper-middle of the GFR range; step up to size 600 or down to size 300 depending on the flow your line needs - we can check the published flow curves against your demand on request. This unit has a manual drain, which suits installations where an operator is present regularly; choose the automatic drain variant where the bowl is mounted in a hard-to-reach spot. The standard element is 40 um; specify the W code for 5 um if downstream equipment needs finer filtration. The fitted square gauge reads in psi; MPa and bar scales are available. NPT threads are ordered as the T option, with PT as the catalogue standard and G (BSPP) also offered. Brackets are optional - this code omits one.
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 G-series flow as performance curves rather than a single rated figure, so we do not quote one number. Send us your line pressure and the flow your equipment needs and we will confirm the sizing against the datasheet curves on request before you order.
The M in the code specifies a manual drain: an operator opens the drain on the bowl to release collected condensate. It is the right choice where the unit is accessible and checked routinely. If the filter-regulator will be mounted out of reach, order the automatic-drain variant instead - it is a decodable option within the same GFR400 family.
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.