Airtac GFR Filter Regulator GFR400C10NK
The AirTAC GFR Filter Regulator GFR400C10NK 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 GFR400C10NK
The AirTAC GFR400C10NK is a filter regulator with a built-in check (reverse) valve: one body that removes water and particulate from compressed air, holds downstream pressure steady, and blocks reverse flow back through the unit. This configuration is the 400 size with a 3/8in PT port, a standard 40 um filter element and a differential-pressure drain on the polycarbonate bowl. The N code means it is ordered without a gauge. Maximum working pressure is 1.0 MPa (145 psi), the regulator adjustment range is 0.15-0.9 MPa (20-130 psi) with this drain type, and the operating temperature range is -5 to 70 C.
This is a genuine AirTAC part. The G-series filter regulators span the 200, 300, 400 and 600 sizes with 1/8in to 1in ports, differential-pressure, automatic or manual drains, 40 um or 5 um (W) elements, embedded square or optional external round gauges in MPa, psi or bar scales, an optional check (reverse) valve and PT, G or NPT threads. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing figures for your application on request.
Airtac GFR Filter Regulator GFR400C10NK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C10NK |
|---|---|
| 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 GFR400C10NK
| 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 GFR400C10NK Is Used
Multi-circuit manifold supply
Feed a pneumatic manifold serving several machine circuits, where the check valve stops one circuit venting back through the unit when an adjacent branch is exhausted.
Bottling-line case packer
Condition and regulate the air driving a case packer's gripper and pusher cylinders, with the built-in check valve holding the circuit charged between machine cycles.
Maintenance-shop air drops
Fit at a maintenance-shop air drop so filtered, regulated air reaches impact tools and test rigs while reverse flow from connected hoses is blocked.
Is the Airtac GFR Filter Regulator GFR400C10NK the Right Unit?
Choose this K-coded unit over the plain GFR400C10N when reverse flow must be stopped at the unit itself - for example to hold a downstream circuit pressurised while the upstream line vents. The 400 size with a 3/8in PT port suits branches carrying more air; 06 through 25 port codes exist across the series. The differential-pressure drain is the no-touch default; automatic (A) gives continuous draining and manual (M) controlled draining, with the manual version widening the regulator range to 0.05-0.9 MPa (7-130 psi). The standard 40 um element suits general plant air; the W code gives 5 um fine filtration. No gauge is fitted in this code, but an embedded square gauge or an external round gauge in MPa, psi or bar scales can be ordered. PT is the standard thread, with G (BSPP) and NPT as catalogue options, and the mounting bracket is included.
Flow is published as curves, not a single rating, so ask us to 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 GFR400C10NK FAQ
AirTAC publishes G-series flow as curves rather than a single rated figure, so we cannot quote one number. Share your line pressure, set pressure and demand and we will confirm the correct size from the datasheet on request.
K means a reverse (check) valve is fitted in the unit. It allows flow in the normal direction only and blocks backflow through the filter regulator - useful where a downstream circuit must stay pressurised when the upstream side is vented. Without the K code the unit has no check valve.
Authorized Export Seller
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 GFR400C10NK
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.