Airtac GFR Filter Regulator GFR400C15NWK
The AirTAC GFR Filter Regulator GFR400C15NWK 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 GFR400C15NWK
The AirTAC GFR400C15NWK is a G-series filter regulator: filtration and pressure regulation in one body, with a condensate bowl and no lubricator. It decodes as the 400 size on a 1/2in PT port with a 5um element (W), a differential-pressure drain, no gauge (N) and a fitted reverse/check valve (K) that blocks air from flowing back toward the supply side. Maximum working pressure is 1.0 MPa (145 psi), the regulated output spans 0.15-0.9 MPa (20-130 psi), and the polycarbonate bowl is rated for compressed air from -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The G-series filter regulator family runs from 200 to 600 sizes with ports from 1/8in to 1in, offered with automatic, manual or differential-pressure drains, 40um or 5um elements, embedded square or external round gauges, G (BSPP) or NPT threads, and with or without the reverse/check valve. Flow is published as characteristic curves rather than a single rated figure, so we confirm datasheet and flow data for your application on request.
Airtac GFR Filter Regulator GFR400C15NWK Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15NWK |
|---|---|
| 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 GFR400C15NWK
| 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 GFR400C15NWK Is Used
Power-clamp fixtures on a transfer line
Regulated air to power-clamp fixtures on a machining transfer line: if the main supply drops, the fitted check valve blocks backflow so the clamp circuit holds its set pressure until the line is restored.
Robot end-of-arm gripper supply
Feeding the gripper valves on robot end-of-arm tooling: the 5um element guards small, tight-tolerance gripper valves, and the check valve keeps the gripper circuit from venting back toward the drop if it is disconnected.
Actuated valve skid on a process line
Supplying an air-to-open process valve skid where the actuator should stay pressurised on supply loss: the regulator sets the actuator pressure and the check valve holds it downstream of the unit.
Is the Airtac GFR Filter Regulator GFR400C15NWK the Right Unit?
This model is the 400 size on a 1/2in PT connection; the G-series steps 200, 300, 400, 600, with larger sizes carrying a larger port and more flow. Choices to weigh: the K suffix is the only difference from GFR400C15NW - fit it where downstream pressure must be held if the supply line drops, and take the plain version otherwise. Then drain (differential-pressure here; A automatic or M manual, with the output range 0.15-0.9 MPa / 20-130 psi on differential or automatic and 0.05-0.9 MPa / 7-130 psi on manual), element (40um standard, 5um with W as fitted), gauge (N means none; square embedded or round external MPa/psi/bar gauges are on other variants), thread (PT standard, G and NPT orderable) and bracket (included). Flow is published as curves, not a single rating, so ask us to confirm sizing 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 GFR400C15NWK FAQ
AirTAC publishes G-series flow as characteristic curves rather than a single rated figure, so no flow number is quoted here. Send us your flow and pressure requirements and we will confirm sizing against the datasheet on request.
K fits a reverse (check) valve in the body, blocking air from flowing back toward the supply side. It is chosen where downstream pressure must be held if the main line drops or the unit is isolated. Everything else decodes the same: 400 size, 1/2in PT port, 5um element, no gauge, differential-pressure drain.
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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 GFR400C15NWK
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.