The AirTAC GFR400C10MLNWTK AirTAC Filter Regulator, NPT3/8, 5 um 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 GFR400C10MLNWTK is an AirTAC GFR400 filter regulator: water and particulate filtration plus pressure regulation combined in one body, with a 3/8 in NPT port. This configuration carries the finer 5 um filter element (code W), a manual drain so the bowl is emptied by hand on a service schedule, the low-pressure regulator type, and a reverse/check valve fitted. No pressure gauge is supplied with this variant, the mounting bracket is included, and the bowl is metal.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and offers a choice of drain type, 40 um or 5 um filtration, gauge and scale options, PT, G or NPT threads, and bracket or no-bracket variants. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm flow and datasheet figures for your application before ordering.
| Model | GFR400C10MLNWTK AirTAC Filter Regulator, NPT3/8, 5 um |
|---|---|
| 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) |
Point-of-use air preparation for a CNC machining cell: the 5 um element filters water and particulate ahead of sensitive solenoid valves, while the regulator holds a set pressure for tool-clamp and actuator circuits fed from a 3/8 in drop line.
Filtering and regulating air to gripper and pusher cylinders along a packaging conveyor, where the manual-drain bowl suits a machine with a scheduled end-of-shift service routine and the check valve helps hold the set circuit.
Supplying filtered, regulated air to sample-handling actuators and small pneumatic tools on a lab automation skid, where the low-pressure regulator type and fine 5 um filtration suit delicate downstream components.
Work through the decodable choices in order. Size 400 with a 3/8 in NPT port sits in the upper-middle of the GFR range (200/300/400/600); step up or down a size when the flow curve for your air demand says so. The 5 um element (code W) is the finer alternative to the 40 um standard grade - choose it when downstream valves and actuators need cleaner air. Drain on this unit is manual, meaning the bowl is emptied by hand as part of a service routine; automatic and differential-pressure drains are available in the family where that routine cannot be guaranteed.
This variant is the low-pressure regulator type with a check valve fitted and no gauge; standard-type regulators, gauges and scale options exist across the series if your circuit needs them. Thread is NPT here - PT is the AirTAC standard and G (BSPP) is also an order option, all stated as specification. Flow for the GFR series is published as curves, not a single rating, so 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. 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, not as a single rated figure, so we will not quote you a number that is not in the datasheet. Send us your application details - demand, upstream pressure and duty - and we will confirm the flow and sizing from the datasheet before you order.
No gauge is fitted on this variant - the N in the code means no gauge - though gauge and scale options exist across the GFR family if you want local pressure indication. The M in the code is the manual drain: the bowl is emptied by hand on a service schedule. If nobody can own that routine, ask us about automatic or differential-pressure drain variants.
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.