The AirTAC GFR400C15MJC1WT AirTAC Filter Regulator NPT1/2 5um 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 GFR400C15MJC1WT is an AirTAC GFR400 filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single 400-size body with a 1/2 in NPT port. This configuration carries the W-code 5 um filter element for finer air cleaning than the standard 40 um grade, a manual drain for the polycarbonate bowl, an external round pressure gauge with MPa scale, and a standard regulator adjustable from 0.05 to 0.9 MPa (7-130 psi). Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. No mounting bracket is fitted (J code) and no reverse/check valve is fitted.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of manual, automatic or differential-pressure drains, 40 um or 5 um filtration, square or round gauges with MPa, psi or bar scales, and PT, G or NPT threads. Flow figures for this series are published as curves rather than a single rated number, so ask us to confirm sizing and datasheet details for your application before ordering.
| Model | GFR400C15MJC1WT AirTAC Filter Regulator NPT1/2 5um |
|---|---|
| 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) |
Feeds filtered, regulated air to the tool-clamp and pallet-clamp circuits of a CNC machining centre, where the 5 um element helps keep moisture and fine particles out of clamping valves and the regulator holds a steady setting for repeatable clamp force.
Sits at the drop point of a cartoning or case-packing conveyor line, cleaning the shop air to 5 um and holding a fixed pressure to the cylinders and grippers that index, push and seal product, with the manual drain emptied during scheduled line stops.
Conditions the supply to pneumatic loom and winding-machine circuits in a textile plant, where the 1/2 in NPT port suits the machine's main air inlet and the 5 um grade supports the clean-air requirement of the machine builder's air-preparation specification.
Sizing a GFR400 starts with the port step: the 400 size with a 1/2 in port sits above the 300 (3/8 in) and below the 600 (3/4 in and up), so pick the size whose flow curve covers your demand with margin. Because flow is published as curves rather than one rated figure, ask us to confirm sizing against your application before ordering. The remaining choices are all decodable from the code: drain type (manual here; automatic or differential-pressure are the alternatives), filter grade (5 um with the W code, 40 um standard), gauge style and scale (external round, MPa here; embedded square is standard, with psi or bar scales available), thread (PT is the standard; G and NPT are catalogue options to order, and this unit is the NPT version), and bracket (fitted by default, omitted on this J-coded unit).
For the regulation side, the standard-type regulator in this configuration covers 0.05-0.9 MPa (7-130 psi) with the manual-drain version. If your line needs coarser 40 um filtration, automatic draining, a square embedded gauge, a different scale, or a bracket, those are separate order codes in the same GFR400 family - tell us the combination and we will confirm the exact part.
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 characteristic curves, not as a single rated number, so we do not quote a flow figure for this unit. Tell us your line pressure, working pressure and expected air consumption, and we will confirm against the datasheet curves whether the 400 size with the 1/2 in NPT port is correctly sized before you order.
The M in the code specifies a manual drain on the filter bowl: collected condensate is released by hand rather than automatically. It suits installations with regular maintenance rounds or intermittent duty. If the unit will run unattended or at high condensate load, the automatic (A) or differential-pressure (blank) drain versions of the same GFR400 are the alternatives. Note that with a manual drain, the regulator adjustment range is 0.05-0.9 MPa (7-130 psi), and the bowl on this 400 size is polycarbonate, so keep the medium non-freezing within the -5 to 70 C range.
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.