The AirTAC GFR40015MJC1WTK AirTAC Filter Regulator NPT1/2 5 um is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR40015MJC1WTK is an AirTAC GFR400 filter regulator: water and particulate filtration plus downstream pressure regulation in a single body. This configuration is the 400 size with a 1/2 in NPT port, a fine 5 um filter element (the W grade, one step finer than the 40 um standard), a manual drain for the polycarbonate bowl, a round pressure gauge with MPa scale, and a built-in reverse/check valve that holds the regulated line if upstream supply is interrupted. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator adjusts from 0.05 to 0.9 MPa (7-130 psi), and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200 to 600 with port options from 1/8 to 1 in, a choice of drain types, 40 um or 5 um elements, gauge styles and scales, and PT, G or NPT threads. Flow is published in the catalogue as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR40015MJC1WTK AirTAC Filter Regulator NPT1/2 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
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 0.05 - 0.9 MPa (7 - 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. |
|---|---|
| 15 | Port size PT1/2". This body offers 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeding filtered, regulated air to the tool-change clamps and pneumatic actuators on a machining centre, where the 5 um element protects fine seal faces and the check valve holds the clamped state if the shop supply drops.
Supplying the diverter gates and pusher cylinders on a packaging conveyor, with the regulator set to the actuator rating and the manual drain emptied during shift changeover.
A point-of-use station on a factory compressed-air ring main, stepping ring pressure down to the working pressure for assembly tools and fixtures while the 5 um element strips water and pipe-scale carried from the main line.
Choose the size and port step against the air demand of the circuit: this unit is the 400 size with a 1/2 in NPT port, one step up from the 300 series, and larger sizes carry more flow. The 5 um element (W code) suits circuits that need finer particle removal than the 40 um standard; note the finer element is a filtration choice, not a flow figure. Manual drain means an operator drains the bowl periodically instead of relying on an automatic or differential-pressure drain, which suits attended installations. The round external gauge here reads in MPa; square embedded gauges and psi or bar scales are also catalogue options. NPT is the thread on this code, with PT and G (BSPP) available to order, and the J code means no mounting bracket is fitted. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing from the datasheet before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR400 series as curves, not as a single rated number, so we do not quote a rated flow, Cv or SCFM figure. Send us your line pressure, working pressure and air demand and we will confirm the sizing from the datasheet on request.
The M code means the polycarbonate bowl has a manual drain: an operator opens it periodically to remove collected condensate, rather than relying on an automatic or differential-pressure drain. The K code means a reverse/check valve is fitted, which holds the regulated downstream line if the upstream supply is interrupted.
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.