The AirTAC GFR40015MC3TK AirTAC Filter Regulator NPT1/2 with Gauge 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 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 GFR40015MC3TK is an AirTAC GFR400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is sized for 1/2 in NPT ports, carries a 40 um standard filter element, and drains via a manual drain valve that you open by hand to expel collected condensate. The regulator is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi), a round external gauge reading in bar is fitted, and a reverse/check valve is built in to hold downstream pressure when the supply is lost. A mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing); the bowl is polycarbonate (PC).
This is a genuine AirTAC part from the G-series range, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of drain types, 40 um or 5 um (W) filtration, gauge styles and scales, and PT, G or NPT threads. Flow figures for this series are published as curves rather than a single rating, so we confirm the datasheet and sizing figures on request.
| Model | GFR40015MC3TK AirTAC Filter Regulator NPT1/2 with Gauge |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 40 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, bar 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Feeding clean, regulated air to the cylinders and grippers on a carton-forming and sealing line, with the check valve holding the set pressure during brief supply dips.
Supplying the air cylinders that divert cartons and raise stoppers on a distribution conveyor, where a stable regulated pressure keeps stroke timing consistent.
Conditioning the air supply to pneumatic actuated ball and butterfly valves on a process skid, with the bar gauge giving operators a local set-point readout.
Start with the port and size: this unit steps up to the 400 frame with 1/2 in NPT threads, the right choice when your air preparation must feed larger actuators, manifolds or multiple take-offs. Choose the drain to match access: this unit has a manual drain, which suits installations where an operator can periodically open the drain; automatic or differential-pressure drains are available in the series where unattended condensate removal is needed. The 40 um element is the standard grade for general pneumatic protection; a 5 um element (code W) is offered where finer particulate removal matters. Gauge options cover embedded square or external round gauges with MPa, psi or bar scales - this unit carries a round bar gauge. Threads are PT as standard, with G (BSPP) and NPT as order options; this unit is NPT. A mounting bracket is included, and a reverse/check valve (K) is fitted.
One honest note before ordering: flow for this series is published as curves, not a single rated figure, so ask us to confirm the datasheet and check the curve against your required flow before you commit to a size.
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 GFR series as curves rather than a single rated figure, so we do not quote a rated flow number. Ask us and we will confirm the datasheet and read the flow curve for the GFR400 at your operating conditions so you can size it against your application before ordering.
The M in the code means the bowl is drained by hand: an operator opens the drain valve to expel collected water. It suits installations that are checked regularly. If the unit will sit unattended, the same GFR400 series is available with an automatic (A) or differential-pressure (blank) drain instead.
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.