Airtac GFR Filter Regulator GFR400C10MJNW
The AirTAC GFR Filter Regulator GFR400C10MJNW 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 GFR400C10MJNW
GFR400C10MJNW 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. The regulator set point is adjusted across 0.05-0.9 MPa (7-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), the medium is compressed air, 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, and gauge or no-gauge configurations. 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 GFR400C10MJNW Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C10MJNW |
|---|---|
| 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 GFR400C10MJNW
| 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 GFR400C10MJNW Is Used
Paint booth gun supply
At the drop feeding spray guns in a finishing booth, the 5 um element removes finer particles from the line than the standard element, helping keep finish defects down, with the regulator set to the gun's specified working pressure.
Test bench instrument air
On a lab or QC test bench running pneumatic gauges and reference instruments, the W variant's 5 um filtration and stable regulation look after sensitive kit, and the manual drain is bled after each test session.
Marking head feed on a production line
Supplying an air-powered pin-marking head on a metalworking line, the unit gives the tool filtered, regulated air so markings stay legible and repeatable, with the bowl drained by hand during changeovers.
Is the Airtac GFR Filter Regulator GFR400C10MJNW 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 in this code selects the optional 5 um element for finer filtration than the 40 um standard - pick it for air-quality-sensitive downstream kit, or the standard version for general cylinders and valves. This N code is supplied without a gauge, and 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 GFR400C10MJNW FAQ
AirTAC publishes flow for the G series as characteristic curves rather than one rated figure, so there is no single flow number we can quote. Share your line pressure and required flow and we will read the 3/8 in curve against the datasheet and confirm suitability on request.
The W in this code selects the optional 5 um element, which suits air-quality-sensitive uses such as spray finishing, instrumentation and test benches. The standard 40 um element is the usual choice for general cylinder and valve circuits. Note that a finer element clogs sooner on dirty plant air, so drain the bowl regularly.
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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 GFR400C10MJNW
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.