Airtac GFR Filter Regulator GFR400C10NWK
The AirTAC GFR Filter Regulator GFR400C10NWK 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 GFR400C10NWK
The AirTAC GFR400C10NWK is a filter regulator with a built-in check (reverse) valve and the fine 5 um (W) filter element: filtration, regulation and reverse-flow blocking in one body, with no lubricator. This configuration is the 400 size with a 3/8in PT port and a differential-pressure drain on the polycarbonate bowl; the N code means no gauge is fitted. 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 standard 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 GFR400C10NWK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C10NWK |
|---|---|
| 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 GFR400C10NWK
| 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 GFR400C10NWK Is Used
Instrument-air branch on a process skid
Feed fine-filtered, regulated air to instrument and pilot circuits on a process skid, with the check valve holding the instrument branch charged if the header is vented.
Semiconductor-test fixture clamping
Condition the air operating clamps on a semiconductor-test fixture, where the 5 um element protects pilot valves and the check valve keeps clamps charged during line dump.
Emergency vent-circuit standby supply
Maintain a standby regulated supply to a vent or gate actuator that must stay ready between operations; the check valve prevents the stored branch from bleeding back.
Is the Airtac GFR Filter Regulator GFR400C10NWK the Right Unit?
This code combines the two most common options: the W 5 um fine-filtration element and the K check valve that blocks reverse flow through the unit. Use it where a fine-filtered, regulated branch must stay pressurised when the upstream side 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) drains continuously and manual (M) on demand, with the manual version widening the regulator range to 0.05-0.9 MPa (7-130 psi). 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 GFR400C10NWK FAQ
AirTAC publishes G-series flow as curves rather than a single rated figure, so no single rating exists to quote. Send us your line pressure, set pressure and demand and we will confirm the sizing from the datasheet on request.
K fits a reverse (check) valve that blocks backflow through the unit, and W fits the 5 um fine-filtration element instead of the standard 40 um. Together they suit a branch that both needs fine-filtered air and must stay pressurised when the upstream side vents. Both are order-time options; the drain, gauge and thread can also be chosen when ordering.
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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 GFR400C10NWK
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.