The AirTAC GFR400C15MNWTK 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 GFR400C15MNWTK is a GFR-series filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at your set point. This configuration is built around 1/2 in NPT ports, a 5 um filter element, a polycarbonate bowl with manual drain, and a fitted reverse/check valve; a mounting bracket is included and no gauge is supplied. Set pressure anywhere in the 0.05-0.9 MPa (7-130 psi) range, with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR400 size class, one of four sizes (200/300/400/600) in the G-series line, with port options from 1/8 to 1 in and PT, G or NPT threads. Drain type, filter grade (40 um standard or 5 um), gauge and scale, and check-valve fitment are all orderable choices. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR400C15MNWTK 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 weld-clamp actuators on an automotive body line, where the fitted check valve holds the set point if the header pressure dips mid-cycle.
Supplying regulated air to pallet and fixture clamps on a machining centre, with the 5 um element protecting clamp valves from fine particulate in the shop air.
Driving air cylinders that divert cartons on a packaging conveyor, with the manual-drain bowl bled at shift start to keep condensate out of the valve bank.
Choose the size and port against the flow your line needs: this unit steps up to 1/2 in NPT ports in the GFR400 class. Drain type is a real decision - manual drain (as fitted here) needs an operator to bleed the bowl, while automatic and differential-pressure drains discharge condensate on their own; note the manual-drain version also widens the regulation range down to 0.05 MPa. The filter grade here is 5 um versus the 40 um standard element, and the check valve (code K) holds the downstream set point if supply pressure drops. No gauge is fitted, so add one with your preferred scale if you need a set-point reference, and confirm PT versus G or NPT thread for your piping. Flow is published as curves, not a single rating - 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 G-series flow as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure and required downstream flow and we will confirm the datasheet figures for this exact configuration before you order.
The N in the model code means no gauge is fitted. G-series regulators accept an embedded square gauge or an external round gauge with MPa, psi or bar scales as an order option - tell us which scale you read and we will include it with the unit.
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.