The AirTAC GFR400C15MF3T AirTAC Filter Regulator 1/2 in NPT 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 GFR400C15MF3T is an AirTAC GFR400 filter regulator: a single body that removes water and particulate from compressed air and holds downstream pressure steady. This unit is built for a 1/2 in NPT port, uses the standard regulator type with a 0.05-0.9 MPa (7-130 psi) adjustment range, and carries a 40 um filter element. The manual drain means an operator opens the drain at the bottom of the polycarbonate bowl to release collected condensate, and the embedded square gauge reads in bar so setpoints can be checked at a glance. A mounting bracket is included; no reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, plus choices of drain type, 40 um or 5 um filtration, gauge scale, and PT, G or NPT thread. Operating temperature is -5 to 70 C (non-freezing) and maximum inlet pressure is 1.0 MPa (145 psi). Flow figures are published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR400C15MF3T AirTAC Filter Regulator 1/2 in NPT |
|---|---|
| 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 the pneumatic cylinders and valve islands on a bottling line, where filtered air at a steady setpoint keeps filler and capper movements repeatable through a full shift.
Regulating and filtering the air to pop-up diverters and stopper cylinders on a parcel sortation conveyor, protecting the valves from water and debris carried in shop air.
Supplying filtered, regulated air to paint spray guns in a body shop booth, where a steady setpoint and a 40 um element support consistent finish quality.
Choose the size by the port and flow step: this 400 size takes a 1/2 in port, and moving up a size buys more flow capacity - we can confirm the curve against your demand before you order. Drain type is a real choice: manual (this unit) needs a routine drain check, automatic handles condensate by itself, and differential-pressure drains on pressure drop. Filtration is 40 um as standard here; specify 5 um (code W) where downstream equipment needs finer protection. The embedded square gauge is fitted with a bar scale; MPa and psi scales and an external round gauge are alternatives. Thread is NPT on this model; PT is the standard and G is an order option. A mounting bracket is included. Because flow is published as curves, not a single rating, ask us to confirm sizing against the 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 GFR400 as curves, not as a single rated figure, so we do not quote one number. Tell us your working pressure and air demand and we will confirm the datasheet curve figures for this 1/2 in NPT unit on request.
This model has an M drain: condensate collects in the polycarbonate bowl and an operator opens the drain to release it, so the bowl should be checked as part of routine maintenance. Automatic and differential-pressure drain versions are available if you would rather not drain by hand.
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.