Airtac GFR Filter Regulator GFR400C10MJN
The AirTAC GFR Filter Regulator GFR400C10MJN 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 GFR400C10MJN
GFR400C10MJN 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 standard 40 um filter element, 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 GFR400C10MJN Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C10MJN |
|---|---|
| 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 GFR400C10MJN
| 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 GFR400C10MJN Is Used
CNC fixture clamping supply
Mounted at the air drop to a machining centre's pneumatic clamping fixtures, the unit filters plant air and sets a stable regulated pressure so clamps grip consistently across a shift. The manual drain is emptied during planned stops.
Solenoid valve bank feed
Placed upstream of a packaging machine's 5/2 solenoid valve bank, it removes water and pipe scale that would otherwise stick valve spools, and holds the supply pressure the valve stack and its cylinders were sized for.
Conveyor diverter air station
On a bottling line's conveyor diverters and stop gates, the filter regulator delivers clean, regulated air so gates fire crisply, and the PC bowl lets operators see accumulated condensate before draining it by hand.
Is the Airtac GFR Filter Regulator GFR400C10MJN 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 in this code is a manual drain: the bowl is emptied by hand, and on GFR units a manual drain 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 standard element filters to 40 um; the W variant gives 5 um finer filtration. This N code is supplied without a gauge, while gauge versions with embedded square or external round dials exist as separate codes. Thread is PT as standard, with G (BSPP) and NPT as catalogue order options, and the J code omits the bracket that other variants include. Flow is published as curves, not a single rated figure, 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 GFR400C10MJN FAQ
AirTAC publishes flow for the G series as characteristic curves rather than one rated figure, so there is no single l/min or SCFM number we can honestly quote. Send us your line pressure and required flow and we will read the 3/8 in curve against the datasheet and confirm suitability on request.
The M code means the bowl is drained by hand, which suits attended lines where an operator bleeds the bowl at shift end. It also widens the regulator adjustment range to 0.05-0.9 MPa (7-130 psi), versus 0.15-0.9 MPa (20-130 psi) for the automatic-drain or default differential-pressure versions that suit unattended duty.
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Standard models are processed and dispatched in 3-5 business days.
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Request a Quote for Airtac GFR Filter Regulator GFR400C10MJN
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.