Airtac GFR Filter Regulator GFR400C10MJNWK
The AirTAC GFR Filter Regulator GFR400C10MJNWK 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.
- TypeFilter regulator
- Port sizeSee datasheet
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac GFR Filter Regulator GFR400C10MJNWK
GFR400C10MJNWK is an AirTAC GFR-series filter regulator: water and particulate filtration plus downstream pressure regulation built into a single body, with no lubricator. This 400-size unit carries a PT3/8 port, a manual-drain bowl in PC (polycarbonate), a 5 um filter element (the W code, finer than the 40 um standard), no gauge and no mounting bracket, and the trailing K adds a built-in reverse (check) valve; its detailed behaviour is covered in the datasheet, which we supply on request. The regulator set point is adjusted across 0.05-0.9 MPa (7-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part supplied through a distributor. The G series spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options that include differential-pressure, automatic or manual drains, 40 um or 5 um elements, G (BSPP) and NPT thread variants, check-valve or no-check-valve configurations, and gauge or no-gauge versions. AirTAC publishes flow for this series as characteristic curves rather than a single rating, so we confirm datasheet and flow figures against your application on request.
Airtac GFR Filter Regulator GFR400C10MJNWK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C10MJNWK |
|---|---|
| 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.
Model Code: Airtac GFR Filter Regulator GFR400C10MJNWK
| 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.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
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) |
Where the Airtac GFR Filter Regulator GFR400C10MJNWK Is Used
Finishing booth gun station
Feeding spray guns at a woodwork finishing booth, the 5 um element trims fine particles from the line while the check valve provides isolation from the supply side, and pressure is tuned to the gun's specification.
Maintenance workshop drop
As the bench drop in a maintenance workshop, it conditions air for impact wrenches, air ratchets and cleaning guns; the 5 um element suits older plant air, and the bowl is drained by hand at the end of the day.
Panel and leak test rig
On a leak-test rig cycling pneumatic test panels, the unit gives each test station filtered, regulated air, and the built-in check valve is there for stations where the tested circuit should be isolated from the supply side while work goes on.
Is the Airtac GFR Filter Regulator GFR400C10MJNWK the Right Unit?
Size 400 with a 3/8 inch port sits in the upper-middle of the G series range (200/300/400/600); step a size up or down if your line needs a larger or smaller port. The M code is a manual drain, emptied by hand, and it widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi) versus 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure drains. The W selects the optional 5 um element for finer filtration, and the K adds a reverse/check valve in the body - choose the plain W or standard code if neither is needed. This N code has no gauge, though gauge versions exist as separate codes. Thread is PT as standard, with G (BSPP) and NPT as order options, and the J code omits the bracket. Flow is published as curves, not a single rating, so send us your line pressure and required flow and we will confirm sizing against the datasheet before you order.
Quick checklist
- ✓ Body size for your peak flow (See datasheet here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.15 - 0.9 MPa (20 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
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 GFR Filter Regulator GFR400C10MJNWK FAQ
AirTAC publishes flow for the G series as characteristic curves rather than one rated figure, so we do not quote a single flow number. Tell us your line pressure and the flow your circuit needs and we will check the 3/8 in curve against the datasheet and confirm the result on request.
The N in the code means no gauge is fitted, which suits lines that already have a gauge downstream or where a panel gauge is used. AirTAC also lists gauge versions of this size - embedded square or external round dials with MPa, psi or bar scales - as separate codes, and we can identify the right one for you on request.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR400C10MJNWK
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.