The AirTAC GFR400C15MJC2WTK 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 AirTAC GFR400C15MJC2WTK is a size 400 filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in a single body. This configuration is threaded NPT1/2 (1/2 in), carries the fine 5 um filter element instead of the 40 um standard, uses a manual drain on the bowl, and comes with an external round gauge scaled in psi. A reverse/check valve is fitted, and no mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the regulator adjusts from 0.05 to 0.9 MPa (7-130 psi); working temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the GFR400 series. The GFR line spans sizes 200, 300, 400 and 600, with port options, drain types (differential-pressure, automatic or manual), 40 um or 5 um filtration, gauge styles and scales, and PT, G or NPT threads. Because flow is published as curves rather than a single rating, we confirm the datasheet and flow figures for your application on request.
| Model | GFR400C15MJC2WTK 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) |
Feeding clean, regulated air to the cylinders and grippers on a carton-forming and sealing line, where the 5 um element protects the directional valves and the regulator holds consistent actuation pressure.
Conditioning supply air for analytical instruments and pneumatic test benches that need fine 5 um filtration and a stable, operator-set pressure visible on a psi gauge.
Serving as the single filter-regulator point for a robotic assembly cell, combining water and particle removal with pressure regulation and check-valve protection on one 1/2 in NPT line.
Size 400 with a 1/2 in port is the larger mid-range step in the GFR line, so match it against the air demand of the circuit rather than assuming it from pipe size alone. You have already chosen the fine 5 um element (W) - keep it if downstream equipment such as precision valves or instruments needs cleaner air than the 40 um standard provides; the manual drain (M) means an operator opens the bowl drain periodically instead of relying on an automatic or differential-pressure drain. The round gauge is scaled in psi; square embedded gauges and MPa or bar scales are alternatives in the range. NPT is the ordered thread option here, with PT and G available across the series, and this unit ships without a bracket (J). Flow for this family is published as curves, not a single rating, so ask us to confirm sizing 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 the GFR series as curves rather than a single rated figure, so we do not quote a number here. Tell us your application and air demand and we will confirm the flow and datasheet figures for this exact model on request before you order.
The M in the code specifies a manual drain: the bowl is emptied by opening its drain fitting during maintenance checks, rather than by an automatic or differential-pressure drain. The W specifies the 5 um filter element, a finer grade than the 40 um standard, suited to protecting sensitive downstream equipment.
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.