Airtac GFR Filter Regulator GFR400C15AN
The AirTAC GFR Filter Regulator GFR400C15AN 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 GFR400C15AN
The GFR series is AirTAC's filter regulator: filtration and pressure regulation built into one body, so a single 1/2 in PT connection both cleans the compressed air and holds a steady outlet pressure. This 400-size unit has an automatic drain (A) that empties collected water from the polycarbonate bowl without anyone opening it, the standard 40 um element, and no gauge fitted (N), so you read the regulated pressure on your own downstream gauge. Maximum inlet pressure is 1.0 MPa (145 psi) and the outlet is adjustable 0.15-0.9 MPa (20-130 psi) on this automatic-drain version.
This is a genuine AirTAC part. G-series filter regulators come in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options for manual or differential-pressure draining, a 5 um element, an embedded square gauge or external round gauge, a reverse (check) valve and G (BSPP) or NPT threads. Working temperature is -5 to 70 C (non-freezing) and a mounting bracket is included. Flow is published as curves rather than a single rating, so we confirm the datasheet figures on request.
Airtac GFR Filter Regulator GFR400C15AN Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15AN |
|---|---|
| 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 GFR400C15AN
| 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 GFR400C15AN Is Used
CNC machining center air supply
Feeds the tool-clamp and chip-door cylinders of a machining center from the shop air ring main, filtering water and pipe scale out and holding a steady regulated pressure for repeatable clamping.
Packaging line stopper cylinders
Supplies the divert and stopper cylinders on a bottling or carton conveyor, where the automatic drain keeps water out of the valves between shifts without an operator opening the bowl.
Actuated process valve panel
Conditions the air feeding solenoid valves and quarter-turn actuators on a plant skid, giving the valve manufacturer one 1/2 in connection that is both filtered and regulated.
Is the Airtac GFR Filter Regulator GFR400C15AN the Right Unit?
Size 400 with a 1/2 in PT port sits in the middle of the G-series range; step down to 300 or up to 600 depending on the air demand of the line. The A in this code selects the automatic drain, which suits unattended or hard-to-reach installations - manual (M) and differential-pressure versions exist if you prefer. The standard 40 um element is right for general cylinder and valve protection; choose the W variant for a 5 um element. No gauge is fitted (N), but an embedded square gauge or external round gauge with MPa, psi or bar scale can be selected. Thread is PT as standard; G (BSPP) and NPT are catalogue options to order. A mounting bracket is included.
AirTAC publishes flow for this series as curves, not a single rated number, so ask us to confirm sizing against your line pressure and demand 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 GFR400C15AN FAQ
AirTAC publishes flow for the G series as characteristic curves, not as a single rated figure, so there is no one rated-flow number we can honestly quote. Send us your line pressure and air demand and we will confirm the sizing against the datasheet curves on request before you order.
They decide how water leaves the bowl. This model (A) drains automatically, which suits unattended equipment. A manual-drain unit (M) empties only when operated by hand, and the differential-pressure version (no letter) drains according to the pressure difference across the element. The regulator setting range also differs: 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure drain, 0.05-0.9 MPa (7-130 psi) with manual drain.
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 GFR400C15AN
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.