Airtac GFR Filter Regulator GFR400C10AJNK
The AirTAC GFR Filter Regulator GFR400C10AJNK 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 GFR400C10AJNK
The GFR400C10AJNK is a genuine AirTAC G-series filter regulator with a built-in check (reverse) valve: water and particulate filtration plus downstream pressure regulation in one body, with the check valve holding the downstream circuit if upstream supply is lost. This size 400 configuration carries a 3/8 inch PT port, an automatic drain on the PC (polycarbonate) bowl, and a 40 um standard filter element. J means no mounting bracket and N means no pressure gauge is fitted. Maximum inlet pressure is 1.0 MPa (145 psi); with the automatic drain the regulating range is 0.15-0.9 MPa (20-130 psi). Operating temperature is -5 to 70 C, non-freezing, medium compressed air.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, drain options (differential-pressure, automatic, manual), 40 um or 5 um elements, the K check-valve option shown here, gauge versions, and G (BSPP) or NPT threads as catalogue options. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures and sizing for your circuit before ordering.
Airtac GFR Filter Regulator GFR400C10AJNK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C10AJNK |
|---|---|
| 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 GFR400C10AJNK
| 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 GFR400C10AJNK Is Used
Clamping fixture pressure hold
On a machining-cell clamping manifold, the check valve keeps clamps pressurized at the regulated setting if the shop air main dips, so parts stay gripped instead of releasing mid-cycle.
Robot gripper supply
Filtered, regulated air to the gripper circuit of a pick-and-place robot, where the built-in check valve prevents downstream loss from briefly unseating the grip during upstream pressure fluctuations.
Control panel regulator stage
A filtered, regulated branch feeding I/P positioners and pilot valves on a process skid, with the check valve isolating the branch from backflow when adjacent legs are vented for service.
Is the Airtac GFR Filter Regulator GFR400C10AJNK the Right Unit?
Choose this K version over the plain GFR400C10AJN when the downstream circuit must hold its regulated pressure if the upstream supply drops - the fitted check valve blocks reverse flow. Size 400 with a 3/8 inch PT port suits larger-bore tubing runs; the family steps from 200 to 600 as flow demands change. Drainage here is automatic; manual drain (0.05-0.9 MPa regulating floor) and the differential-pressure default are the other catalogue choices. Element is 40 um standard, 5 um (W) optional. Thread is PT as standard, with G (BSPP) and NPT orderable; J omits the bracket and N omits the gauge. Flow is published as curves, not one rated figure, so have us confirm sizing against your application before ordering.
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 GFR400C10AJNK FAQ
We do not quote a single flow figure because AirTAC publishes G-series flow as curves against inlet pressure and pressure drop rather than one rating. Share your flow and pressure conditions and we will confirm the sizing from the datasheet before you order.
K is AirTAC's reverse (check) valve option: a built-in check valve that permits flow in the normal direction but blocks reverse flow, so the regulated downstream circuit holds pressure if the upstream side loses supply. Everything else - size 400, PT3/8 port, automatic drain, 40 um element - decodes the same as the non-K model.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac GFR Filter Regulator GFR400C10AJNK
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.